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Observed 1:25 PM PDT at KSTS

Angwin, CA weather

Sunny and 75°24°, jacket by 9 PM.

Today: low 46°8° (likely 45°7° to 54°12°), high 69°21° (likely 69°21° to 72°22°).

Mostly agree

Now 75°24°

Sunny

Wind
6 mph9 km/h
From the south-southwest. Up to 6 mph9 km/h through 1 AM
Dew point
37°3°
Comfortable
UV index
4Moderate
Moderate until 4 PM
Air quality
27Good
Main pollutant: PM2.5 (fine particles)
Pressure
30 inHg1016 hPa
Falling · −0.05 inHg−1.8 hPa in 3 h

Next 2 hours

No precipitation expected in the next 2 hours.

Next 48 hours

6°3° warmer than this time yesterday (69°21° then, 75°24° now)

Good hours for
  • High 68°20° today at 5 PM
  • Below 60°16° tonight after 8 PM
  • Low 47°8° tomorrow at 6 AM
  • Above 60°16° tomorrow by 1 PM
  1. This afternoonUp to 68°20° by 5 PM · Clear
  2. TonightDown to 49°9° by 3 AM · Clear
  3. Tomorrow morningUp to 58°14° by 11 AM · Mostly cloudy
  4. Tomorrow afternoonUp to 65°18° by 5 PM · Cloudy
  5. Tomorrow nightDown to 44°7° by 5 AM · Partly cloudy
  6. Monday morningUp to 54°12° by 11 AM · Clear
Hourly forecast, next 48 hours, in the place's local time
HourConditionsTemperatureFeels likePrecipitationWindHumidityCloud coverUV index
Sat 1pSunny64°18° (likely 64°18° to 70°21°)64°18°0%6 mph10 km/h from N, gusts 12 mph19 km/h38%0%4
Sat 2pSunny66°19° (likely 66°19° to 71°22°)66°19°0%5 mph8 km/h from N, gusts 9 mph15 km/h38%1%4
Sat 3pSunny67°19° (likely 67°19° to 72°22°)67°19°0%5 mph8 km/h from NW, gusts 7 mph12 km/h36%0%3
Sat 4pSunny67°19° (likely 67°19° to 72°22°)67°19°0%3 mph5 km/h from W, gusts 7 mph12 km/h36%0%2
Sat 5pSunny68°20° (likely 67°19° to 71°22°)68°20°0%2 mph3 km/h from WSW, gusts 7 mph11 km/h36%0%2
Sat 6pClear64°18° (likely 61°16° to 65°18°)64°18°0%3 mph5 km/h from WSW, gusts 10 mph16 km/h44%0%1
Sat 7pClear60°16° (likely 56°13° to 60°16°)60°16°0%3 mph5 km/h from W, gusts 9 mph15 km/h51%0%0
Sat 8pClear57°14° (likely 52°11° to 58°14°)57°14°0%3 mph5 km/h from WSW, gusts 8 mph13 km/h57%0%0
Sat 9pClear52°11° (likely 49°9° to 57°14°)52°11°0%2 mph3 km/h from W, gusts 7 mph11 km/h58%0%0
Sat 10pClear52°11° (likely 47°8° to 55°13°)52°11°0%2 mph3 km/h from W, gusts 6 mph10 km/h58%1%0
Sat 11pClear52°11° (likely 45°7° to 55°13°)52°11°0%1 mph2 km/h from W, gusts 7 mph11 km/h57%7%0
Sun 12aClear51°11° (likely 45°7° to 55°13°)51°11°0%2 mph3 km/h from W, gusts 6 mph10 km/h58%2%0
Sun 1aClear50°10° (likely 45°7° to 55°13°)50°10°0%2 mph3 km/h from W, gusts 4 mph7 km/h59%0%0
Sun 2aClear50°10° (likely 44°7° to 55°13°)50°10°0%2 mph3 km/h from W, gusts 3 mph5 km/h56%7%0
Sun 3aMostly clear49°9° (likely 44°7° to 54°12°)49°9°0%3 mph5 km/h from W, gusts 4 mph6 km/h58%50%0
Sun 4aMostly clear49°9° (likely 43°6° to 54°12°)48°9°0%3 mph5 km/h from W, gusts 4 mph7 km/h57%65%0
Sun 5aCloudy49°9° (likely 43°6° to 53°12°)47°8°0%5 mph8 km/h from WSW, gusts 4 mph7 km/h57%68%0
Sun 6aCloudy47°8° (likely 42°6° to 53°12°)45°7°0%5 mph8 km/h from WNW, gusts 4 mph7 km/h60%69%0
Sun 7aPartly sunny47°8° (likely 41°5° to 53°12°)45°7°0%5 mph8 km/h from WNW, gusts 4 mph6 km/h62%60%0
Sun 8aPartly sunny47°8° (likely 41°5° to 53°12°)45°7°0%5 mph8 km/h from N, gusts 4 mph6 km/h64%66%0
Sun 9aMostly cloudy50°10° (likely 45°7° to 55°13°)48°9°0%5 mph8 km/h from N, gusts 4 mph7 km/h62%70%1
Sun 10aMostly cloudy54°12° (likely 52°11° to 61°16°)54°12°0%3 mph5 km/h from ESE, gusts 6 mph10 km/h55%74%2
Sun 11aCloudy58°14° (likely 58°14° to 64°18°)58°14°0%2 mph3 km/h from SSE, gusts 6 mph10 km/h52%80%3
Sun 12pCloudy59°15° (likely 59°15° to 67°19°)59°15°0%3 mph5 km/h from S, gusts 7 mph11 km/h50%81%3
Sun 1pCloudy61°16° (likely 61°16° to 68°20°)61°16°0%5 mph8 km/h from S, gusts 8 mph13 km/h49%83%4
Sun 2pCloudy63°17° (likely 63°17° to 68°20°)63°17°0%5 mph8 km/h from S, gusts 8 mph13 km/h49%85%4
Sun 3pCloudy64°18° (likely 64°18° to 68°20°)64°18°0%6 mph10 km/h from SSW, gusts 10 mph15 km/h48%86%3
Sun 4pCloudy64°18° (likely 64°18° to 68°20°)64°18°0%6 mph10 km/h from SSW, gusts 10 mph17 km/h48%86%2
Sun 5pCloudy65°18° (likely 63°17° to 66°19°)65°18°0%6 mph10 km/h from SW, gusts 10 mph17 km/h49%88%1
Sun 6pCloudy61°16° (likely 59°15° to 61°16°)61°16°0%5 mph8 km/h from WSW, gusts 9 mph14 km/h57%90%0
Sun 7pCloudy58°14° (likely 54°12° to 58°14°)58°14°0%5 mph8 km/h from WSW, gusts 11 mph17 km/h64%93%0
Sun 8pCloudy56°13° (likely 51°11° to 56°13°)56°13°0%5 mph8 km/h from WSW, gusts 12 mph19 km/h68%88%0
Sun 9pMostly cloudy51°11° (likely 49°9° to 54°12°)51°11°0%5 mph8 km/h from WSW, gusts 11 mph18 km/h71%42%0
Sun 10pClear50°10° (likely 47°8° to 52°11°)49°9°0%5 mph8 km/h from WSW, gusts 10 mph17 km/h72%6%0
Sun 11pClear49°9° (likely 44°7° to 51°11°)47°8°0%5 mph8 km/h from WSW, gusts 11 mph17 km/h74%0%0
Mon 12aClear47°8° (likely 43°6° to 50°10°)46°8°0%5 mph8 km/h from WSW, gusts 11 mph18 km/h78%0%0
Mon 1aClear46°8° (likely 42°6° to 49°9°)45°7°0%5 mph8 km/h from WSW, gusts 10 mph16 km/h81%7%0
Mon 2aClear46°8° (likely 41°5° to 47°8°)43°6°0%5 mph8 km/h from W, gusts 11 mph18 km/h79%11%0
Mon 3aClear45°7° (likely 41°5° to 46°8°)43°6°0%5 mph8 km/h from W, gusts 11 mph18 km/h80%13%0
Mon 4aClear45°7° (likely 41°5° to 47°8°)42°6°0%5 mph8 km/h from W, gusts 11 mph18 km/h81%25%0
Mon 5aPartly cloudy44°7° (likely 42°6° to 47°8°)41°5°0%6 mph10 km/h from W, gusts 10 mph16 km/h81%32%0
Mon 6aClear44°7° (likely 42°6° to 47°8°)41°5°0%6 mph10 km/h from W, gusts 10 mph17 km/h83%29%0
Mon 7aPartly sunny44°7° (likely 41°5° to 46°8°)41°5°0%6 mph10 km/h from W, gusts 11 mph18 km/h86%29%0
Mon 8aSunny44°7° (likely 41°5° to 47°8°)41°5°0%6 mph10 km/h from W, gusts 11 mph18 km/h88%24%0
Mon 9aMostly sunny47°8° (likely 45°7° to 51°11°)44°7°0%6 mph10 km/h from W, gusts 13 mph20 km/h87%15%1
Mon 10aSunny50°10° (likely 50°10° to 54°12°)48°9°0%6 mph10 km/h from W, gusts 14 mph22 km/h84%12%2
Mon 11aMostly sunny54°12° (likely 54°12° to 57°14°)54°12°0%9 mph14 km/h from W, gusts 16 mph25 km/h80%20%3
Mon 12pMostly sunny56°13° (likely 56°13° to 60°16°)56°13°0%9 mph14 km/h from W, gusts 16 mph26 km/h77%18%4

Days ahead

Shaded: typical range for these dates (1991–2020)
  1. Today, Oct 24. Sunny. High 69°21°, low 46°8°. Typical 76°24° / 46°8°. Dry. Mostly agree.
    1. Afternoon

      noon–6 PM

      Sunny, 68°20°

      Dry

    2. Evening

      6 PM–midnight

      Clear, 57°14°

      Dry

    3. Overnight

      midnight–6 AM

      Mostly clear, 49°9°

      Dry

    Official NWS forecast

    Today: Sunny, with a high near 69. Northwest wind 2 to 6 mph.

    Tonight: Mostly clear. Low around 46, with temperatures rising to around 49 overnight. West wind 1 to 5 mph.

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

    High, likely
    69°21°–72°22°
    Low, likely
    45°7°–54°12°
    Typical high / low
    76°24° / 46°8°
    Wind
    21 mph34 km/h, gusts 32 mph51 km/h
    UV peak
    5
  2. Tomorrow, Oct 25. Cloudy. High 66°19°, low 44°7°. Typical 75°24° / 46°8°. Dry. Mostly agree.
    1. Morning

      6 AM–noon

      Mostly cloudy, 47°8°

      Dry

    2. Afternoon

      noon–6 PM

      Cloudy, 65°18°

      Dry

    3. Evening

      6 PM–midnight

      Mostly cloudy, 56°13°

      Dry

    4. Overnight

      midnight–6 AM

      Clear, 44°7°

      Dry

    Official NWS forecast

    Day: Partly sunny, with a high near 66. South southwest wind 2 to 6 mph.

    Night: Partly cloudy, with a low around 44. West southwest wind around 6 mph.

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

    High, likely
    66°19°–68°20°
    Low, likely
    41°5°–50°10°
    Typical high / low
    75°24° / 46°8°
    Wind
    10 mph16 km/h, gusts 17 mph27 km/h
    UV peak
    4
  3. Monday, Oct 26. Mostly sunny. High 61°16°, low 43°6°. Typical 75°24° / 45°7°. Dry. Forecasts agree.
    1. Morning

      6 AM–noon

      Mostly sunny, 44°7°

      Dry

    2. Afternoon

      noon–6 PM

      Sunny, 63°17°

      Dry

    3. Evening

      6 PM–midnight

      Clear, 49°10°

      Dry

    4. Overnight

      midnight–6 AM

      Clear, 40°5°

      Dry

    Official NWS forecast

    Day: Sunny, with a high near 61. West wind 6 to 10 mph, with gusts as high as 21 mph.

    Night: Mostly clear, with a low around 43.

    Forecasts agreeIndependent forecasts are close; the range is narrow.

    High, likely
    61°16°–64°18°
    Low, likely
    40°4°–45°7°
    Typical high / low
    75°24° / 45°7°
    Wind
    9 mph14 km/h, gusts 24 mph39 km/h
    UV peak
    5
  4. Tuesday, Oct 27. Mostly sunny. High 63°17°, low 44°7°. Typical 74°23° / 45°7°. Dry. Mostly agree.
    1. Morning

      6 AM–noon

      Sunny, 40°4°

      Dry

    2. Afternoon

      noon–6 PM

      Mostly sunny, 63°17°

      Dry

    3. Evening

      6 PM–midnight

      Clear, 49°10°

      Dry

    4. Overnight

      midnight–6 AM

      Cloudy, 43°6°

      Dry

    Hours this far out come from computer models only.

    Official NWS forecast

    Day: Sunny, with a high near 63.

    Night: Partly cloudy, with a low around 44.

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

    High, likely
    62°17°–65°18°
    Low, likely
    37°3°–44°7°
    Typical high / low
    74°23° / 45°7°
    Wind
    7 mph11 km/h
    UV peak
    4
  5. Wednesday, Oct 28. Cloudy. High 60°16°, low 45°7°. Typical 74°23° / 45°7°. Dry. Forecasts differ.
    1. Morning

      6 AM–noon

      Cloudy, 42°5°

      Dry

    2. Afternoon

      noon–6 PM

      Cloudy, 64°18°

      Dry

    3. Evening

      6 PM–midnight

      Cloudy, 51°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 60.

    Night: Mostly cloudy, with a low around 45.

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

    High, likely
    60°16°–67°19°
    Low, likely
    40°4°–45°7°
    Typical high / low
    74°23° / 45°7°
    Wind
    5 mph8 km/h, gusts 15 mph24 km/h
    UV peak
    4
  6. Thursday, Oct 29. Cloudy. High 58°14°, low 42°6°. Typical 74°23° / 45°7°. Dry. Mostly agree.
    1. Morning

      6 AM–noon

      Cloudy, 45°7°

      Dry

    2. Afternoon

      noon–6 PM

      Sunny, 63°17°

      Dry

    3. Evening

      6 PM–midnight

      Clear, 48°9°

      Dry

    4. Overnight

      midnight–6 AM

      Clear, 39°4°

      Dry

    Hours this far out come from computer models only.

    Official NWS forecast

    Day: Mostly sunny, with a high near 58.

    Night: Partly cloudy, with a low around 42.

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

    High, likely
    58°14°–64°18°
    Low, likely
    41°5°–46°8°
    Typical high / low
    74°23° / 45°7°
    Wind
    8 mph13 km/h, gusts 28 mph45 km/h
    UV peak
    4
  7. Friday, Oct 30. Partly sunny. High 55°13°, low 41°5°. Typical 73°23° / 45°7°. Dry. Forecasts differ.
    1. Morning

      6 AM–noon

      Sunny, 40°5°

      Dry

    2. Afternoon

      noon–6 PM

      Mostly sunny, 59°15°

      Dry

    3. Evening

      6 PM–midnight

      Clear, 46°8°

      Dry

    4. Overnight

      midnight–6 AM

      Clear, 37°3°

      Dry

    Hours this far out come from computer models only.

    Official NWS forecast

    Day: Mostly sunny, with a high near 55.

    Night: A slight chance of rain between 11pm and 5am. Partly cloudy, with a low around 41.

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

    High, likely
    55°13°–62°17°
    Low, likely
    36°2°–41°5°
    Typical high / low
    73°23° / 45°7°
    Wind
    9 mph15 km/h, gusts 25 mph40 km/h
    UV peak
    4
  8. Saturday, Oct 31. Cloudy. High 60°16°, low 38°3°. Typical 73°23° / 44°7°. Dry. Forecasts differ.
    1. Morning

      6 AM–noon

      Sunny, 37°3°

      Dry

    2. Afternoon

      noon–6 PM

      Sunny, 60°16°

      Dry

    3. Evening

      6 PM–midnight

      Clear, 47°8°

      Dry

    4. Overnight

      midnight–6 AM

      Clear, 37°3°

      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
    56°13°–65°18°
    Low, likely
    32°0°–41°5°
    Typical high / low
    73°23° / 44°7°
    Wind
    5 mph9 km/h, gusts 20 mph31 km/h
    UV peak
    4
  9. Sunday, Nov 1. Cloudy. High 63°17°, low 37°3°. Typical 72°22° / 44°7°. Dry. Forecasts differ.
    1. Morning

      6 AM–noon

      Sunny, 39°4°

      Dry

    2. Afternoon

      noon–6 PM

      Mostly sunny, 63°17°

      Dry

    3. Evening

      6 PM–midnight

      Clear, 50°10°

      Dry

    4. Overnight

      midnight–6 AM

      Drizzle, 39°4°

      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
    57°14°–68°20°
    Low, likely
    32°0°–41°5°
    Typical high / low
    72°22° / 44°7°
    Wind
    9 mph14 km/h, gusts 15 mph23 km/h
    UV peak
    4
  10. Monday, Nov 2. Rain. High 56°13°, low 39°4°. Typical 72°22° / 44°7°. Rain 0.16 in4.1 mm, 20% chance. Forecasts differ.
    1. Morning

      6 AM–noon

      Partly sunny, 46°8°

      Dry

    2. Afternoon

      noon–6 PM

      Cloudy, 54°12°

      Dry

    3. Evening

      6 PM–midnight

      Drizzle, 47°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
    53°12°–60°16°
    Low, likely
    34°1°–44°7°
    Typical high / low
    72°22° / 44°7°
    Wind
    7 mph12 km/h, gusts 23 mph37 km/h
    UV peak
    1

The outlook

  1. Today

    Dry, high 69°, low 46°.

  2. Tomorrow

    Dry, high 66°, low 44°, cooling off.

  3. Monday

    Dry, high 61°, low 43°, cooling off.

  4. Rest of week

    Mostly dry, highs 55–63°.

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

Napa River near St. Helena

4.6 mi
Below flood stage
Level
0.5 ft

Forecast peak 1.1 ft Sat 1 PM

Reading from Sat 12:15 PM · NWS gauge page

Putah Creek near Guenoc

14 mi
Below flood stage
Level
3.2 ft

Forecast peak 3.9 ft Sat 1 PM

Reading from Sat 11:30 AM · NWS gauge page

Napa River at Lodi Lane

4.1 mi
Below flood stage
Level
0.0 ft

Reading from Sat 5:30 AM · NWS gauge page

York Creek at Highway 29

4.9 mi
Below flood stage
Level
0.9 ft

Reading from Sat 2:55 AM · NWS gauge page

For your home

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

Heating this week

About 37% less heating than a typical week.

This week 23Typical 36

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 39°F).

Open the windows?

Today, 2:00 PM–7:00 PM

Good stretch to open the windows.

Is this typical?

Calistoga · official normals 1991–2020 · records 1916–2026

Oct 24, today vs a typical year

Today’s expected high is 7°4° colder than typical.

Normal high / low
76°24° / 46°8°
Forecast high / low
69°21° / 46°8°
Record high
94°34° in 2003
Record low
36°2° in 1933

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

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

Sun & moon

Sun

Sunrise 7:28 AM, sunset 6:19 PM.

Daylight
10 h 51 min
Losing 2 min 16 s a day; shortest Dec 21, 1 h 23 min less
Golden hour
5:42–6:35 PM
Morning 7:11–8:04 AM
Blue hour
6:35–6:46 PM
Morning 7:01–7:11 AM; first light 7:01 AM

Stars tonight? Fair

Mostly clear 6:46 PM–3 AM, but the moon is 99% lit and up.

Moon

Waxing gibbous

98% lit · growing

Today
sets 5:49 AM · rises 5:19 PM
Full moon
Oct 25
New moon
Nov 8
Looking north from Angwin. The highest point on the skyline is about 2,800 ft, 3 mi away.Skyline from USGS elevation data, heights drawn up to 6× taller. Sky, sun and moon as they are now.