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Observed 10:15 PM PDT at KGOO

Alta Sierra, CA weather

Clear and 54°12°.

Today: low 45°7° (likely 45°7° to 52°11°), high 63°17° (likely 62°17° to 63°17°).

Forecasts agree

Now 54°12°

Clear

Wind
8 mph13 km/h
From the northeast. Up to 9 mph14 km/h through 10 AM
Dew point
27°−3°
Dry · up to 35°2° by 11 PM (comfortable)
UV tomorrow
5Moderate
Moderate 11 AM–5 PM · peak 5
Air quality
26Good
Main pollutant: PM2.5 (fine particles)
Pressure
30.08 inHg1019 hPa
Steady over the last 3 h

Next 2 hours

Light rain now, through the next 2 hours.

  1. 12:00 AM: light rain
  2. 12:15 AM: light rain
  3. 12:30 AM: light rain
  4. 12:45 AM: light rain
  5. 1:00 AM: light rain
  6. 1:15 AM: light rain
  7. 1:30 AM: light rain
  8. 1:45 AM: light rain

Next 48 hours

4°2° warmer than this time yesterday (50°10° then, 54°12° now)

Good hours for
  • Low 46°8° tomorrow at 7 AM
  • Above 60°16° tomorrow by 10 AM
  • High 69°21° tomorrow at 2 PM
  • Below 60°16° tomorrow night after 7 PM
  1. TonightNear 49°9° · Clear
  2. Tomorrow morningUp to 66°19° by 11 AM · Clear
  3. Tomorrow afternoonNear 67°19° · Clear
  4. Tomorrow nightDown to 45°7° by 5 AM · Clear
  5. Sunday morningUp to 67°19° by 11 AM · Partly cloudy
  6. Sunday afternoonNear 70°21° · Mostly cloudy
  7. Sunday nightDown to 52°11° by 9 PM · Mostly cloudy
Hourly forecast, next 48 hours, in the place's local time
HourConditionsTemperatureFeels likePrecipitationWindHumidityCloud coverUV index
Fri 10pClear50°10° (likely 50°10° to 54°12°)46°8°0%9 mph14 km/h from NE, gusts 9 mph15 km/h58%0%0
Fri 11pClear50°10° (likely 49°9° to 53°12°)46°8°0%9 mph14 km/h from NE, gusts 9 mph14 km/h56%0%0
Sat 12aClear50°10° (likely 49°9° to 53°12°)47°8°0%8 mph13 km/h from NNE, gusts 9 mph14 km/h57%0%0
Sat 1aClear49°9° (likely 48°9° to 52°11°)46°8°0%7 mph11 km/h from NE, gusts 8 mph13 km/h58%0%0
Sat 2aClear49°9° (likely 48°9° to 52°11°)46°8°0%7 mph11 km/h from NE, gusts 9 mph14 km/h58%0%0
Sat 3aClear49°9° (likely 48°9° to 52°11°)46°8°0%8 mph13 km/h from NE, gusts 9 mph15 km/h57%0%0
Sat 4aClear48°9° (likely 47°8° to 52°11°)44°7°0%8 mph13 km/h from ENE, gusts 9 mph15 km/h55%0%0
Sat 5aClear47°8° (likely 47°8° to 53°12°)44°7°0%7 mph11 km/h from ENE, gusts 10 mph15 km/h56%0%0
Sat 6aClear47°8° (likely 47°8° to 51°11°)44°7°0%7 mph11 km/h from ENE, gusts 10 mph17 km/h58%0%0
Sat 7aSunny46°8° (likely 46°8° to 52°11°)42°6°0%7 mph11 km/h from ENE, gusts 10 mph16 km/h60%0%0
Sat 8aSunny47°8° (likely 47°8° to 54°12°)44°7°0%6 mph10 km/h from NE, gusts 9 mph15 km/h60%0%0
Sat 9aSunny52°11° (likely 52°11° to 58°14°)52°11°0%5 mph8 km/h from NE, gusts 10 mph16 km/h52%0%1
Sat 10aSunny61°16° (likely 60°16° to 64°18°)61°16°0%2 mph3 km/h from NE, gusts 9 mph14 km/h42%0%2
Sat 11aSunny66°19° (likely 65°18° to 68°20°)66°19°0%2 mph3 km/h from NW, gusts 6 mph10 km/h34%0%3
Sat 12pSunny67°19° (likely 66°19° to 71°22°)67°19°0%3 mph5 km/h from W, gusts 9 mph14 km/h34%0%4
Sat 1pSunny68°20° (likely 66°19° to 70°21°)68°20°0%5 mph8 km/h from W, gusts 11 mph18 km/h34%0%5
Sat 2pSunny69°21° (likely 66°19° to 69°21°)69°21°0%5 mph8 km/h from W, gusts 11 mph18 km/h34%0%5
Sat 3pSunny68°20° (likely 66°19° to 69°21°)68°20°0%5 mph8 km/h from W, gusts 11 mph17 km/h35%0%4
Sat 4pSunny67°19° (likely 64°18° to 68°20°)67°19°0%3 mph5 km/h from WSW, gusts 9 mph15 km/h39%0%3
Sat 5pSunny67°19° (likely 62°17° to 67°19°)67°19°0%2 mph3 km/h from SSW, gusts 8 mph13 km/h39%2%1
Sat 6pClear63°17° (likely 59°15° to 63°17°)63°17°0%2 mph3 km/h from SSW, gusts 7 mph11 km/h48%4%0
Sat 7pClear57°14° (likely 55°13° to 58°14°)57°14°0%2 mph3 km/h from SSW, gusts 5 mph8 km/h59%3%0
Sat 8pClear53°12° (likely 53°12° to 56°13°)53°12°0%3 mph5 km/h from E, gusts 4 mph6 km/h71%0%0
Sat 9pClear50°10° (likely 50°10° to 54°12°)49°9°0%3 mph5 km/h from E, gusts 4 mph6 km/h79%14%0
Sat 10pClear48°9° (likely 48°9° to 53°12°)47°8°0%3 mph5 km/h from E, gusts 5 mph8 km/h81%2%0
Sat 11pClear48°9° (likely 48°9° to 52°11°)48°9°0%2 mph3 km/h from ENE, gusts 5 mph9 km/h82%10%0
Sun 12aClear47°8° (likely 47°8° to 51°11°)47°8°0%2 mph3 km/h from ENE, gusts 6 mph10 km/h81%5%0
Sun 1aClear47°8° (likely 46°8° to 51°11°)47°8°0%2 mph3 km/h from ENE, gusts 6 mph10 km/h77%3%0
Sun 2aMostly clear47°8° (likely 46°8° to 50°10°)46°8°0%3 mph5 km/h from ENE, gusts 7 mph11 km/h74%14%0
Sun 3aClear47°8° (likely 46°8° to 49°9°)46°8°0%3 mph5 km/h from ENE, gusts 7 mph12 km/h72%39%0
Sun 4aMostly clear47°8° (likely 45°7° to 49°9°)46°8°0%3 mph5 km/h from ENE, gusts 8 mph12 km/h71%45%0
Sun 5aClear45°7° (likely 45°7° to 49°9°)43°6°0%5 mph8 km/h from ENE, gusts 8 mph12 km/h70%7%0
Sun 6aMostly clear45°7° (likely 44°7° to 49°9°)43°6°0%5 mph8 km/h from ENE, gusts 7 mph12 km/h70%54%0
Sun 7aCloudy44°7° (likely 44°7° to 50°10°)41°5°0%5 mph8 km/h from ENE, gusts 7 mph11 km/h70%60%0
Sun 8aMostly sunny43°6° (likely 43°6° to 50°10°)40°4°0%5 mph8 km/h from ENE, gusts 6 mph10 km/h67%52%0
Sun 9aMostly sunny50°10° (likely 50°10° to 56°13°)48°9°0%5 mph8 km/h from ENE, gusts 6 mph10 km/h59%55%1
Sun 10aCloudy59°15° (likely 59°15° to 63°17°)59°15°0%5 mph8 km/h from ENE, gusts 9 mph15 km/h48%58%2
Sun 11aMostly sunny67°19° (likely 64°18° to 67°19°)67°19°0%2 mph3 km/h from SSW, gusts 9 mph15 km/h39%55%3
Sun 12pMostly sunny70°21° (likely 67°19° to 70°21°)70°21°0%2 mph3 km/h from SSW, gusts 12 mph19 km/h36%63%4
Sun 1pCloudy71°22° (likely 67°19° to 71°22°)71°22°0%2 mph3 km/h from SSW, gusts 12 mph20 km/h36%70%4
Sun 2pCloudy71°22° (likely 67°19° to 71°22°)71°22°0%5 mph8 km/h from SW, gusts 13 mph21 km/h37%77%4
Sun 3pMostly sunny71°22° (likely 66°19° to 71°22°)71°22°0%5 mph8 km/h from SW, gusts 13 mph21 km/h37%78%3
Sun 4pMostly sunny71°22° (likely 65°18° to 71°22°)71°22°0%5 mph8 km/h from SW, gusts 12 mph19 km/h38%78%2
Sun 5pCloudy69°21° (likely 63°17° to 69°21°)69°21°0%2 mph3 km/h from SW, gusts 10 mph17 km/h42%76%1
Sun 6pPartly cloudy65°18° (likely 56°13° to 65°18°)65°18°0%2 mph3 km/h from SW, gusts 4 mph7 km/h50%70%0
Sun 7pPartly cloudy60°16° (likely 54°12° to 60°16°)60°16°0%2 mph3 km/h from SW, gusts 4 mph6 km/h60%70%0
Sun 8pPartly cloudy55°13° (likely 53°12° to 57°14°)55°13°0%5 mph8 km/h from E, gusts 5 mph7 km/h68%65%0
Sun 9pPartly cloudy52°11° (likely 52°11° to 57°14°)52°11°0%5 mph8 km/h from E, gusts 4 mph7 km/h73%68%0

Days ahead

Shaded: typical range for these dates (1991–2020)
  1. Today, Oct 23. Rain. High 63°17°, low 45°7°. Typical 68°20° / 45°7°. Rain 0.14 in3.6 mm, 50% chance. Forecasts agree.
    1. Evening

      6 PM–midnight

      Clear, 50°10°

      Dry

    2. Overnight

      midnight–6 AM

      Clear, 47°8°

      Dry

    Official NWS forecast

    Tonight: Clear. Low around 45, with temperatures rising to around 47 overnight. Northeast wind around 9 mph.

    Forecasts agreeIndependent forecasts are close; the range is narrow.

    High, likely
    62°17°–63°17°
    Low, likely
    45°7°–52°11°
    Typical high / low
    68°20° / 45°7°
    Wind
    12 mph20 km/h, gusts 24 mph38 km/h
    UV peak
    5
  2. Tomorrow, Oct 24. Sunny. High 69°21°, low 42°6°. Typical 67°19° / 45°7°. Dry. Mostly agree.
    1. Morning

      6 AM–noon

      Sunny, 47°8°

      Dry

    2. Afternoon

      noon–6 PM

      Sunny, 69°21°

      Dry

    3. Evening

      6 PM–midnight

      Clear, 53°12°

      Dry

    4. Overnight

      midnight–6 AM

      Clear, 45°7°

      Dry

    Official NWS forecast

    Day: Sunny. High near 69, with temperatures falling to around 67 in the afternoon. North northwest wind 2 to 7 mph.

    Night: Clear. Low around 42, with temperatures rising to around 45 overnight. East wind around 5 mph.

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

    High, likely
    67°19°–71°22°
    Low, likely
    42°6°–51°11°
    Typical high / low
    67°19° / 45°7°
    Wind
    11 mph17 km/h, gusts 21 mph33 km/h
    UV peak
    5
  3. Sunday, Oct 25. Mostly sunny. High 71°22°, low 45°7°. Typical 67°19° / 45°7°. Dry. Mostly agree.
    1. Morning

      6 AM–noon

      Mostly sunny, 43°6°

      Dry

    2. Afternoon

      noon–6 PM

      Mostly sunny, 71°22°

      Dry

    3. Evening

      6 PM–midnight

      Partly cloudy, 55°13°

      Dry

    4. Overnight

      midnight–6 AM

      Clear, 50°10°

      Dry

    Official NWS forecast

    Day: Sunny, with a high near 71. South wind around 5 mph.

    Night: Mostly clear, with a low around 45. East southeast wind around 5 mph.

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

    High, likely
    66°19°–71°22°
    Low, likely
    44°7°–48°9°
    Typical high / low
    67°19° / 45°7°
    Wind
    11 mph17 km/h, gusts 19 mph30 km/h
    UV peak
    4
  4. Monday, Oct 26. Mostly sunny. High 69°21°, low 42°6°. Typical 66°19° / 45°7°. Dry. Mostly agree.
    1. Morning

      6 AM–noon

      Sunny, 49°9°

      Dry

    2. Afternoon

      noon–6 PM

      Sunny, 63°17°

      Dry

    3. Evening

      6 PM–midnight

      Clear, 50°10°

      Dry

    4. Overnight

      midnight–6 AM

      Clear, 43°6°

      Dry

    Hours this far out come from computer models only.

    Official NWS forecast

    Day: Sunny, with a high near 69.

    Night: Mostly clear, with a low around 42.

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

    High, likely
    61°16°–69°21°
    Low, likely
    42°6°–46°8°
    Typical high / low
    66°19° / 45°7°
    Wind
    10 mph16 km/h, gusts 24 mph38 km/h
    UV peak
    5
  5. Tuesday, Oct 27. Mostly sunny. High 68°20°, low 41°5°. Typical 66°19° / 44°7°. Dry. Mostly agree.
    1. Morning

      6 AM–noon

      Sunny, 43°6°

      Dry

    2. Afternoon

      noon–6 PM

      Cloudy, 64°18°

      Dry

    3. Evening

      6 PM–midnight

      Clear, 50°10°

      Dry

    4. Overnight

      midnight–6 AM

      Clear, 44°7°

      Dry

    Hours this far out come from computer models only.

    Official NWS forecast

    Day: Sunny, with a high near 68.

    Night: Partly cloudy, with a low around 41.

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

    High, likely
    61°16°–68°20°
    Low, likely
    40°4°–43°6°
    Typical high / low
    66°19° / 44°7°
    Wind
    7 mph12 km/h, gusts 18 mph29 km/h
    UV peak
    4
  6. Wednesday, Oct 28. Cloudy. High 68°20°, low 43°6°. Typical 65°18° / 44°7°. Dry. Mostly agree.
    1. Morning

      6 AM–noon

      Sunny, 44°7°

      Dry

    2. Afternoon

      noon–6 PM

      Cloudy, 62°17°

      Dry

    3. Evening

      6 PM–midnight

      Cloudy, 50°10°

      Dry

    4. Overnight

      midnight–6 AM

      Cloudy, 46°8°

      Dry

    Hours this far out come from computer models only.

    Official NWS forecast

    Day: Mostly sunny, with a high near 68.

    Night: Partly cloudy, with a low around 43.

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

    High, likely
    60°16°–68°20°
    Low, likely
    40°4°–45°7°
    Typical high / low
    65°18° / 44°7°
    Wind
    9 mph14 km/h, gusts 19 mph30 km/h
    UV peak
    4
  7. Thursday, Oct 29. Cloudy. High 67°19°, low 42°6°. Typical 65°18° / 44°7°. Dry. Mostly agree.
    1. Morning

      6 AM–noon

      Cloudy, 46°8°

      Dry

    2. Afternoon

      noon–6 PM

      Cloudy, 60°15°

      Dry

    3. Evening

      6 PM–midnight

      Cloudy, 52°11°

      Dry

    4. Overnight

      midnight–6 AM

      Clear, 47°8°

      Dry

    Hours this far out come from computer models only.

    Official NWS forecast

    Day: Mostly sunny, with a high near 67.

    Night: A slight chance of rain after 5am. Partly cloudy, with a low around 42.

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

    High, likely
    57°14°–67°19°
    Low, likely
    42°6°–47°8°
    Typical high / low
    65°18° / 44°7°
    Wind
    7 mph12 km/h, gusts 20 mph32 km/h
    UV peak
    4
  8. Friday, Oct 30. Rain. High 64°18°, low 44°7°. Typical 64°18° / 44°7°. Rain 0.2 in5.1 mm, 20% chance. Forecasts differ.
    1. Morning

      6 AM–noon

      Sunny, 46°8°

      20% chance · 0.07 in1.8 mm

    2. Afternoon

      noon–6 PM

      Mostly sunny, 56°13°

      30% chance · 0.09 in2.4 mm

    3. Evening

      6 PM–midnight

      Mostly clear, 48°9°

      30% chance · 0.03 in0.8 mm

    4. Overnight

      midnight–6 AM

      Clear, 44°7°

      30% chance

    Hours this far out come from computer models only.

    Official NWS forecast

    Day: A slight chance of rain. Mostly sunny, with a high near 64.

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

    High, likely
    53°12°–64°18°
    Low, likely
    39°4°–48°9°
    Typical high / low
    64°18° / 44°7°
    Wind
    7 mph12 km/h, gusts 23 mph36 km/h
    UV peak
    4
  9. Saturday, Oct 31. Cloudy. High 59°15°, low 40°4°. Typical 64°18° / 43°6°. Rain 0.04 in1 mm, 30% chance. Forecasts differ.
    1. Morning

      6 AM–noon

      Sunny, 45°7°

      30% chance

    2. Afternoon

      noon–6 PM

      Cloudy, 60°16°

      30% chance

    3. Evening

      6 PM–midnight

      Clear, 48°9°

      30% chance

    4. Overnight

      midnight–6 AM

      Clear, 44°6°

      30% chance

    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
    55°13°–67°19°
    Low, likely
    35°2°–45°7°
    Typical high / low
    64°18° / 43°6°
    Wind
    7 mph10 km/h, gusts 14 mph23 km/h
    UV peak
    3
  10. Sunday, Nov 1. Sunny. High 64°18°, low 42°6°. Typical 64°18° / 43°6°. Rain 0.02 in0.5 mm, 30% chance. Forecasts differ.
    1. Morning

      6 AM–noon

      Sunny, 48°9°

      20% chance

    2. Afternoon

      noon–6 PM

      Sunny, 66°19°

      20% chance

    3. Evening

      6 PM–midnight

      Clear, 54°12°

      30% chance

    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°–70°21°
    Low, likely
    37°3°–52°11°
    Typical high / low
    64°18° / 43°6°
    Wind
    7 mph12 km/h, gusts 16 mph26 km/h
    UV peak
    3

The outlook

  1. Today

    46% chance of rain, high 63°, low 45°.

  2. Tomorrow

    Dry, high 69°, low 42°, warming up.

  3. Sunday

    Dry, high 71°, low 45°.

  4. Rest of week

    Mostly dry, highs 59–69°.

Want the meteorologists’ reasoning? Read the NWS forecast discussion (STO) (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

Bear River near Wheatland

21 mi
Below flood stage
Level
-0.3 ft

Forecast peak -0.3 ft Fri 11 PM

Reading from Fri 9:45 PM · NWS gauge page

South Fork Yuba River at Jones Bar

12 mi
Level
1.9 ft
Flow
40 cfs

Reading from Fri 10 PM · NWS gauge page

North Fork American River at North Fork Dam

13 mi
Level
0.4 ft
Flow
59 cfs

Reading from Fri 9:15 PM · NWS gauge page

Deer Creek near Smartville

14 mi
Level
2.8 ft
Flow
9 cfs

Reading from Fri 10 PM · NWS gauge page

For your home

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

Heating this week

About 70% less heating than a typical week.

This week 20Typical 67

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 27°F).

Open the windows?

Sat, 10:00 AM–6:00 PM

Good stretch to open the windows.

Is this typical?

Nevada City · official normals 1991–2020 · records 1893–2026

Oct 23, today vs a typical year

Today’s expected high is 5°3° colder than typical.

Normal high / low
68°20° / 45°7°
Forecast high / low
63°17° / 45°7°
Record high
88°31° in 1913
Record low
21°−6° in 1975

Last 7 days vs normal

On average 3°1° warmer than normal (daily mean temperature).

  1. +9°+5°SunOct 18
  2. +7°+4°MonOct 19
  3. +1°TueOct 20
  4. +2°+1°WedOct 21
  5. ±0°ThuOct 22
  6. −3°−2°FriOct 23
  7. —SatOct 24

Alta Sierra weather by month: normals, records, snow and freeze dates

Sun & moon

Sun

Sunrise 7:22 AM, sunset 6:14 PM.

Daylight
10 h 52 min
Losing 2 min 21 s a day; shortest Dec 21, 1 h 27 min less
Golden hour
5:37–6:30 PM
Morning 7:05–7:59 AM
Blue hour
6:30–6:41 PM
Morning 6:55–7:05 AM; first light 6:55 AM

Stars tonight? Good

Clear 10:54 PM–6:56 AM; moon 96% lit, sets 5:44 AM.

Moon

Waxing gibbous

95% lit · growing

Today
sets 4:36 AM · rises 4:47 PM
Full moon
Oct 25
New moon
Nov 8
Looking east from Alta Sierra. The highest point on the skyline is about 13,100 ft, 56 mi away.Skyline from USGS elevation data, heights drawn up to 6× taller. Sky, sun and moon as they are now.