Skip to forecast
Search a place

1 active weather alert

  • Coastal Flood Advisory

    Ends in 5 days 4 h

    When
    From 8 AM Saturday to 3 PM PDT Thursday.
    Where
    Bay Shoreline locations of San Francisco Bay, Monterey Bay and Big Sur Coast.

    Issued for this forecast zone · National Weather Service San Francisco CA

    What, impacts and precautions

    What

    Up to 1.9ft of inundation above ground level is possible in low-lying areas near shorelines and tidal waterways.

    Impacts

    High tides will result in flooding of low-lying infrastructure, isolated road closures, and coastal erosion. Rising tides will bring water and waves farther up the beach than normal, restricting escape from beaches and coastal areas.

    Additional details

    At the San Francisco tidal gauge, high tide is expected to be 1.1 ft above normal (6.9 ft MLLW) at 10:39 AM Saturday 10/24, 1.5 ft above normal (7.3 ft MLLW) at 11:07 AM Sunday 10/25, 1.6 ft above normal (7.4 ft MLLW) at 11:39 AM Monday 10/26, 1.8 ft above normal (7.6 ft MLLW) at 12:15 PM Tuesday 10/27, 1.9 ft above normal (7.7 ft MLLW) at 12:56 PM Wednesday 10/28, and 1.7 ft above normal (7.5 ft MLLW) at 01:43 PM Thursday 10/29. These predictions include up to 1.0 ft of surge that will enhance the astronomical tide and flooding threat. High tide varies up to 90 minutes earlier or later along the Pacific Coast and through the San Francisco Bay, respectively.

    Precautionary actions

    If travel is required, allow extra time as some roads may be closed. Do not drive around barricades or through water of unknown depth. Take the necessary actions to protect flood-prone property.

    Areas: San Francisco; North Bay Interior Valleys; San Francisco Bay Shoreline; Northern Monterey Bay; Southern Monterey Bay and Big Sur Coast

    See it on weather.gov (opens in a new tab)

Observed 9:40 AM PDT at KSTS

Guerneville, CA weather

Sunny and 55°13°, 9°5° warmer than a typical Oct 24, jacket by 8 PM.

Today: low 46°8° (likely 41°5° to 48°9°), high 75°24° (likely 71°22° to 75°24°).

Mostly agree

Now 55°13°

Sunny

Wind
6 mph9 km/h
From the northwest. Up to 6 mph9 km/h through 10 PM
Dew point
46°8°
Comfortable
UV index
1Low
Moderate 12–4 PM · peak 4
Air quality
26Good
Main pollutant: PM2.5 (fine particles)
Pressure
30.07 inHg1018 hPa
Steady over the last 3 h

Next 2 hours

No precipitation expected in the next 2 hours.

Next 48 hours

Good hours for
  • Above 70°21° today by noon
  • High 74°23° today at 2 PM
  • Drops 13°7° today 5–8 PM (70°21° → 57°14°)
  • Below 60°16° tonight after 7 PM
  • Fog Monday 7–9 AM
  1. This morningUp to 65°18° by 11 AM · Clear
  2. This afternoonUp to 74°23° by 2 PM · Clear
  3. TonightDown to 47°8° by 3 AM · Partly cloudy
  4. Tomorrow morningUp to 62°17° by 11 AM · Mostly cloudy
  5. Tomorrow afternoonUp to 72°22° by 3 PM · Cloudy
  6. Tomorrow nightDown to 46°8° by 4 AM · Partly cloudy
  7. Monday morningUp to 50°10° by 9 AM · Partly cloudy
Hourly forecast, next 48 hours, in the place's local time
HourConditionsTemperatureFeels likePrecipitationWindHumidityCloud coverUV index
Sat 10aSunny58°14° (likely 57°14° to 63°17°)59°15°0%1 mph2 km/h from ENE, gusts 4 mph6 km/h55%0%1
Sat 11aSunny65°18° (likely 64°18° to 69°21°)65°18°0%1 mph2 km/h from S, gusts 3 mph5 km/h47%0%2
Sat 12pSunny70°21° (likely 68°20° to 72°22°)70°21°0%1 mph2 km/h from SSE, gusts 4 mph7 km/h43%0%4
Sat 1pSunny72°22° (likely 70°21° to 73°23°)73°23°0%2 mph3 km/h from SSW, gusts 8 mph13 km/h37%0%4
Sat 2pSunny74°23° (likely 70°21° to 74°23°)74°23°0%3 mph5 km/h from SW, gusts 10 mph16 km/h36%0%4
Sat 3pSunny74°23° (likely 69°21° to 74°23°)74°23°0%5 mph8 km/h from SW, gusts 12 mph20 km/h37%0%3
Sat 4pSunny72°22° (likely 68°20° to 72°22°)72°22°0%5 mph8 km/h from WSW, gusts 13 mph21 km/h38%0%2
Sat 5pSunny70°21° (likely 66°19° to 70°21°)70°21°0%5 mph8 km/h from WSW, gusts 13 mph21 km/h44%0%2
Sat 6pClear65°18° (likely 61°16° to 65°18°)65°18°0%2 mph3 km/h from WSW, gusts 11 mph17 km/h54%1%1
Sat 7pMostly clear57°14° (likely 56°13° to 58°14°)57°14°0%1 mph2 km/h from W, gusts 8 mph14 km/h69%13%0
Sat 8pMostly clear53°12° (likely 52°11° to 55°13°)53°12°0%0 mph0 km/h, gusts 6 mph10 km/h74%43%0
Sat 9pClear51°11° (likely 49°9° to 52°11°)51°11°0%0 mph0 km/h, gusts 5 mph8 km/h74%13%0
Sat 10pClear50°10° (likely 47°8° to 52°11°)50°10°0%0 mph0 km/h, gusts 4 mph7 km/h74%15%0
Sat 11pMostly clear50°10° (likely 45°7° to 51°11°)50°10°0%0 mph0 km/h, gusts 4 mph7 km/h74%21%0
Sun 12aClear50°10° (likely 45°7° to 50°10°)50°10°0%0 mph0 km/h, gusts 4 mph6 km/h71%38%0
Sun 1aClear49°9° (likely 44°7° to 50°10°)49°9°0%0 mph0 km/h, gusts 2 mph4 km/h73%41%0
Sun 2aMostly clear48°9° (likely 44°7° to 49°9°)49°9°0%0 mph0 km/h, gusts 2 mph3 km/h73%42%0
Sun 3aMostly clear47°8° (likely 43°6° to 49°9°)47°8°0%0 mph0 km/h, gusts 3 mph4 km/h72%52%0
Sun 4aMostly clear47°8° (likely 42°6° to 49°9°)47°8°0%0 mph0 km/h, gusts 3 mph5 km/h71%67%0
Sun 5aCloudy47°8° (likely 41°5° to 49°9°)47°8°0%0 mph0 km/h, gusts 3 mph6 km/h70%70%0
Sun 6aPartly cloudy46°8° (likely 39°4° to 48°9°)46°8°0%0 mph0 km/h, gusts 3 mph5 km/h69%72%0
Sun 7aPartly cloudy47°8° (likely 39°4° to 48°9°)47°8°0%0 mph0 km/h, gusts 3 mph5 km/h69%74%0
Sun 8aPartly sunny47°8° (likely 39°4° to 48°9°)47°8°0%1 mph2 km/h from ENE, gusts 3 mph5 km/h71%76%0
Sun 9aPartly sunny50°10° (likely 44°7° to 54°12°)50°10°0%1 mph2 km/h from ENE, gusts 3 mph4 km/h70%75%1
Sun 10aCloudy56°13° (likely 53°12° to 60°16°)56°13°0%1 mph2 km/h from ENE, gusts 3 mph5 km/h64%82%2
Sun 11aCloudy62°17° (likely 59°15° to 64°18°)62°17°0%2 mph3 km/h from S, gusts 5 mph8 km/h56%83%3
Sun 12pCloudy67°19° (likely 64°18° to 67°19°)67°19°0%2 mph3 km/h from S, gusts 5 mph8 km/h51%83%3
Sun 1pCloudy70°21° (likely 66°19° to 70°21°)70°21°0%2 mph3 km/h from S, gusts 7 mph12 km/h45%84%4
Sun 2pCloudy71°22° (likely 65°18° to 71°22°)71°22°0%5 mph8 km/h from SW, gusts 9 mph14 km/h43%87%4
Sun 3pCloudy72°22° (likely 63°17° to 72°22°)72°22°0%5 mph8 km/h from SW, gusts 9 mph15 km/h44%88%3
Sun 4pCloudy70°21° (likely 62°17° to 70°21°)70°21°0%5 mph8 km/h from SW, gusts 9 mph15 km/h46%88%3
Sun 5pCloudy68°20° (likely 60°16° to 68°20°)68°20°0%2 mph3 km/h from SW, gusts 9 mph15 km/h52%89%1
Sun 6pCloudy64°18° (likely 56°13° to 64°18°)64°18°0%2 mph3 km/h from SW, gusts 9 mph15 km/h62%87%0
Sun 7pCloudy58°14° (likely 54°12° to 58°14°)58°14°0%2 mph3 km/h from SW, gusts 9 mph15 km/h74%83%0
Sun 8pPartly cloudy53°12° (likely 51°11° to 54°12°)53°12°0%0 mph0 km/h, gusts 7 mph12 km/h83%63%0
Sun 9pClear50°10° (likely 48°9° to 52°11°)50°10°0%0 mph0 km/h, gusts 7 mph12 km/h87%16%0
Sun 10pClear49°9° (likely 46°8° to 50°10°)49°9°0%0 mph0 km/h, gusts 5 mph8 km/h87%14%0
Sun 11pClear49°9° (likely 45°7° to 49°9°)49°9°0%0 mph0 km/h, gusts 6 mph9 km/h86%13%0
Mon 12aClear48°9° (likely 44°7° to 48°9°)48°9°0%0 mph0 km/h, gusts 5 mph9 km/h86%13%0
Mon 1aClear48°9° (likely 43°6° to 48°9°)48°9°0%0 mph0 km/h, gusts 6 mph9 km/h87%14%0
Mon 2aClear47°8° (likely 43°6° to 47°8°)47°8°0%0 mph0 km/h, gusts 5 mph8 km/h88%13%0
Mon 3aClear47°8° (likely 43°6° to 47°8°)47°8°0%0 mph0 km/h, gusts 5 mph7 km/h88%17%0
Mon 4aClear46°8° (likely 43°6° to 46°8°)46°8°0%0 mph0 km/h, gusts 4 mph7 km/h89%14%0
Mon 5aMostly clear46°8° (likely 43°6° to 47°8°)46°8°0%1 mph2 km/h from NNW, gusts 5 mph7 km/h90%30%0
Mon 6aClear45°7° (likely 41°5° to 50°10°)45°7°0%1 mph2 km/h from NNW, gusts 4 mph7 km/h92%22%0
Mon 7aFog45°7° (likely 40°4° to 50°10°)45°7°0%1 mph2 km/h from NNW, gusts 4 mph7 km/h94%28%0
Mon 8aFog46°8° (likely 40°4° to 52°11°)46°8°0%2 mph3 km/h from NNW, gusts 4 mph7 km/h94%32%0
Mon 9aMostly sunny50°10° (likely 46°8° to 55°13°)50°10°0%2 mph3 km/h from NNW, gusts 4 mph6 km/h90%44%1

Days ahead

Shaded: typical range for these dates (1991–2020)
  1. Today, Oct 24. Sunny. High 75°24°, low 46°8°. Typical 66°19° / 47°8°. Dry. Mostly agree.
    1. Morning

      6 AM–noon

      Sunny, 65°18°

      Dry

    2. Afternoon

      noon–6 PM

      Sunny, 74°23°

      Dry

    3. Evening

      6 PM–midnight

      Clear, 53°12°

      Dry

    4. Overnight

      midnight–6 AM

      Mostly clear, 47°8°

      Dry

    Official NWS forecast

    Today: Sunny. High near 75, with temperatures falling to around 70 in the afternoon. South southwest wind 1 to 5 mph.

    Tonight: Mostly clear, with a low around 46. West northwest wind around 2 mph.

    Mostly agreeIndependent forecasts are fairly close; small surprises are possible.

    High, likely
    71°22°–75°24°
    Low, likely
    41°5°–48°9°
    Typical high / low
    66°19° / 47°8°
    Wind
    10 mph16 km/h, gusts 16 mph26 km/h
    UV peak
    5
  2. Tomorrow, Oct 25. Partly sunny. High 72°22°, low 45°7°. Typical 66°19° / 46°8°. Dry. Mostly agree.
    1. Morning

      6 AM–noon

      Partly sunny, 47°8°

      Dry

    2. Afternoon

      noon–6 PM

      Cloudy, 72°22°

      Dry

    3. Evening

      6 PM–midnight

      Clear, 53°12°

      Dry

    4. Overnight

      midnight–6 AM

      Clear, 46°8°

      Dry

    Official NWS forecast

    Day: Mostly sunny. High near 72, with temperatures falling to around 68 in the afternoon. South southwest wind 0 to 5 mph.

    Night: Partly cloudy, with a low around 45. Northwest wind around 2 mph.

    Mostly agreeIndependent forecasts are fairly close; small surprises are possible.

    High, likely
    67°19°–72°22°
    Low, likely
    38°3°–47°8°
    Typical high / low
    66°19° / 46°8°
    Wind
    8 mph13 km/h
    UV peak
    4
  3. Monday, Oct 26. Fog. High 67°19°, low 43°6°. Typical 65°18° / 46°8°. Dry. Mostly agree.
    1. Morning

      6 AM–noon

      Mostly sunny, 46°8°

      Dry

    2. Afternoon

      noon–6 PM

      Sunny, 66°19°

      Dry

    3. Evening

      6 PM–midnight

      Clear, 52°11°

      Dry

    4. Overnight

      midnight–6 AM

      Clear, 43°6°

      Dry

    Hours this far out come from computer models only.

    Official NWS forecast

    Day: Patchy fog between 7am and 9am. Sunny, with a high near 67. West northwest wind 1 to 8 mph, with gusts as high as 18 mph.

    Night: Patchy fog after 2am. Mostly clear, with a low around 43.

    Mostly agreeIndependent forecasts are fairly close; small surprises are possible.

    High, likely
    64°18°–67°19°
    Low, likely
    41°5°–47°8°
    Typical high / low
    65°18° / 46°8°
    Wind
    11 mph17 km/h, gusts 20 mph32 km/h
    UV peak
    5
  4. Tuesday, Oct 27. Fog. High 68°20°, low 45°7°. Typical 65°18° / 46°8°. Dry. Mostly agree.
    1. Morning

      6 AM–noon

      Mostly sunny, 43°6°

      Dry

    2. Afternoon

      noon–6 PM

      Sunny, 66°19°

      Dry

    3. Evening

      6 PM–midnight

      Clear, 51°11°

      Dry

    4. Overnight

      midnight–6 AM

      Clear, 43°6°

      Dry

    Hours this far out come from computer models only.

    Official NWS forecast

    Day: Patchy fog before 9am. Sunny, with a high near 68.

    Night: Partly cloudy, with a low around 45.

    Mostly agreeIndependent forecasts are fairly close; small surprises are possible.

    High, likely
    64°18°–68°20°
    Low, likely
    39°4°–45°7°
    Typical high / low
    65°18° / 46°8°
    Wind
    12 mph19 km/h, gusts 18 mph28 km/h
    UV peak
    4
  5. Wednesday, Oct 28. Cloudy. High 67°19°, low 46°8°. Typical 65°18° / 46°8°. Dry. Forecasts differ.
    1. Morning

      6 AM–noon

      Cloudy, 44°6°

      Dry

    2. Afternoon

      noon–6 PM

      Cloudy, 66°19°

      Dry

    3. Evening

      6 PM–midnight

      Cloudy, 52°11°

      Dry

    4. Overnight

      midnight–6 AM

      Cloudy, 47°8°

      Dry

    Hours this far out come from computer models only.

    Official NWS forecast

    Day: Mostly sunny, with a high near 67.

    Night: Mostly cloudy, with a low around 46.

    Forecasts differIndependent forecasts disagree; expect changes and plan for the range.

    High, likely
    63°17°–69°21°
    Low, likely
    38°3°–46°8°
    Typical high / low
    65°18° / 46°8°
    Wind
    9 mph14 km/h, gusts 15 mph24 km/h
    UV peak
    4
  6. Thursday, Oct 29. Rain. High 65°18°, low 45°7°. Typical 65°18° / 46°8°. Rain, 20% chance. Forecasts differ.
    1. Morning

      6 AM–noon

      Cloudy, 46°8°

      Dry

    2. Afternoon

      noon–6 PM

      Mostly sunny, 65°18°

      Dry

    3. Evening

      6 PM–midnight

      Clear, 50°10°

      Dry

    4. Overnight

      midnight–6 AM

      Clear, 42°5°

      Dry

    Hours this far out come from computer models only.

    Official NWS forecast

    Day: Patchy fog between 7am and 10am, then a slight chance of rain. Partly sunny, with a high near 65.

    Night: A chance of rain. Partly cloudy, with a low around 45.

    Forecasts differIndependent forecasts disagree; expect changes and plan for the range.

    High, likely
    61°16°–67°19°
    Low, likely
    41°5°–48°9°
    Typical high / low
    65°18° / 46°8°
    Wind
    9 mph14 km/h, gusts 24 mph38 km/h
    UV peak
    4
  7. Friday, Oct 30. Rain. High 65°18°, low 45°7°. Typical 64°18° / 46°8°. Rain 0.01 in0.3 mm, 30% chance. Forecasts differ.
    1. Morning

      6 AM–noon

      Sunny, 42°6°

      Dry

    2. Afternoon

      noon–6 PM

      Sunny, 62°17°

      Dry

    3. Evening

      6 PM–midnight

      Clear, 49°10°

      Dry

    4. Overnight

      midnight–6 AM

      Mostly clear, 40°5°

      Dry

    Hours this far out come from computer models only.

    Official NWS forecast

    Day: A chance of rain and patchy fog before 7am, then areas of fog and a chance of rain between 7am and 8am, then a chance of rain and patchy fog. Partly sunny, with a high near 65.

    Night: A chance of rain. Partly cloudy, with a low around 45.

    Forecasts differIndependent forecasts disagree; expect changes and plan for the range.

    High, likely
    59°15°–66°19°
    Low, likely
    36°2°–45°7°
    Typical high / low
    64°18° / 46°8°
    Wind
    11 mph17 km/h, gusts 25 mph41 km/h
    UV peak
    4
  8. Saturday, Oct 31. Mostly sunny. High 62°17°, low 41°5°. Typical 64°18° / 46°8°. Rain 0.03 in0.8 mm, 20% chance. Forecasts differ.
    1. Morning

      6 AM–noon

      Sunny, 40°5°

      Dry

    2. Afternoon

      noon–6 PM

      Sunny, 63°17°

      Dry

    3. Evening

      6 PM–midnight

      Clear, 51°10°

      Dry

    4. Overnight

      midnight–6 AM

      Clear, 42°6°

      Dry

    Hours this far out come from computer models only.

    The National Weather Service writes about seven days ahead; this day is our model forecast only.

    Forecasts differIndependent forecasts disagree; expect changes and plan for the range.

    High, likely
    58°14°–67°19°
    Low, likely
    38°3°–44°7°
    Typical high / low
    64°18° / 46°8°
    Wind
    8 mph13 km/h, gusts 20 mph32 km/h
    UV peak
    4
  9. Sunday, Nov 1. Sunny. High 66°19°, low 41°5°. Typical 64°18° / 46°8°. Dry. Forecasts differ.
    1. Morning

      6 AM–noon

      Sunny, 44°7°

      Dry

    2. Afternoon

      noon–6 PM

      Sunny, 67°19°

      Dry

    3. Evening

      6 PM–midnight

      Clear, 53°12°

      Dry

    4. Overnight

      midnight–6 AM

      Clear, 46°8°

      Dry

    Hours this far out come from computer models only.

    The National Weather Service writes about seven days ahead; this day is our model forecast only.

    Forecasts differIndependent forecasts disagree; expect changes and plan for the range.

    High, likely
    58°14°–75°24°
    Low, likely
    35°2°–44°7°
    Typical high / low
    64°18° / 46°8°
    Wind
    10 mph17 km/h, gusts 24 mph39 km/h
    UV peak
    4
  10. Monday, Nov 2. Cloudy. High 65°18°, low 47°8°. Typical 64°18° / 46°8°. Rain 0.02 in0.5 mm, 20% chance. Forecasts differ.
    1. Morning

      6 AM–noon

      Cloudy, 53°11°

      Dry

    2. Afternoon

      noon–6 PM

      Cloudy, 67°19°

      Dry

    3. Evening

      6 PM–midnight

      Mostly clear, 52°11°

      20% chance · 0.03 in0.8 mm

    Hours this far out come from computer models only.

    The National Weather Service writes about seven days ahead; this day is our model forecast only.

    Forecasts differIndependent forecasts disagree; expect changes and plan for the range.

    High, likely
    59°15°–72°22°
    Low, likely
    44°7°–52°11°
    Typical high / low
    64°18° / 46°8°
    Wind
    10 mph15 km/h, gusts 23 mph37 km/h
    UV peak
    3

The outlook

  1. Today

    Dry, high 75°, low 46°.

  2. Tomorrow

    Dry, high 72°, low 45°, cooling off.

  3. Monday

    Dry, high 67°, low 43°, cooling off.

  4. Rest of week

    Mostly dry, highs 62–68°.

Want the meteorologists’ reasoning? Read the NWS forecast discussion (MTR) (opens in a new tab)

What changed since yesterday

No meaningful changes from yesterday’s forecast.

Radar

Radar data: NOAA MRMS, rendered by forecast.blue
Radar loads when scrolled into view

Full-screen radar

Rivers

NOAA river gauges within 25 mi

Russian River at Guerneville

1.3 mi
Below flood stage
Level
4.3 ft
Flow
154 cfs

Forecast peak 4.3 ft Sat 10 AM

Reading from Sat 8 AM · NWS gauge page

Russian River near Guerneville

3.4 mi
Below flood stage
Level
1.8 ft
Flow
186 cfs

Forecast peak 1.8 ft Sat 10 AM

Reading from Sat 8:15 AM · NWS gauge page

Mark West Creek near Mirabel Heights

7.6 mi
Below flood stage
Level
38.9 ft
Flow
2 cfs

Forecast peak 38.8 ft Sat 10 AM

Reading from Sat 8:45 AM · NWS gauge page

Russian River near Healdsburg

11 mi
Below flood stage
Level
0.1 ft
Flow
184 cfs

Forecast peak 0.1 ft Sat 10 AM

Reading from Sat 8:45 AM · NWS gauge page

For your home

What this week’s weather means for heating, cooling, pipes and fresh air.

Heating this week

About 68% less heating than a typical week.

This week 21Typical 66

Heating degree days, base 65°F

Heat-pump hours, next 7 days

h below 47°F
13
h below 17°F
0
h below 5°F
0

47, 17 and 5°F are the test points heat pumps are rated at.

Comfort

Dry air outside (dew point 46°F).

Open the windows?

Today, 11:00 AM–6:00 PM

Good stretch to open the windows.

Is this typical?

Fort Ross · official normals 1991–2020 · records 1897–2026

Oct 24, today vs a typical year

Today’s expected high is 9°5° warmer than typical.

Normal high / low
66°19° / 47°8°
Forecast high / low
75°24° / 46°8°
Record high
84°29° in 1965
Record low
30°−1° in 2020

Last 7 days vs normal

  1. —SunOct 18
  2. —MonOct 19
  3. —TueOct 20
  4. —WedOct 21
  5. —ThuOct 22
  6. —FriOct 23
  7. —SatOct 24

Guerneville weather by month: normals, records, snow and freeze dates

Sun & moon

Sun

Sunrise 7:30 AM, sunset 6:21 PM.

Daylight
10 h 51 min
Losing 2 min 21 s a day; shortest Dec 21, 1 h 22 min less
Golden hour
5:44–6:38 PM
Morning 7:13–8:06 AM
Blue hour
6:38–6:48 PM
Morning 7:03–7:13 AM; first light 7:03 AM

Stars tonight? Fair

Mostly clear 9 PM–12 AM, but the moon is 99% lit and up.

Moon

Waxing gibbous

97% lit · growing

Today
sets 5:51 AM · rises 5:21 PM
Full moon
Oct 25
New moon
Nov 8
Looking northeast from Guerneville. The highest point on the skyline is about 2,000 ft, 3 mi away.Skyline from USGS elevation data, heights drawn up to 4.5× taller. Sky, sun and moon as they are now.