National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

Heavy Rain and Thunderstorms in the Plains; Snow in the Northern Rockies; Heavy Rain in Guam

A storm system moving over the Rockies today will bring marginal risks for excessive rainfall and severe thunderstorms from parts of New Mexico into western South Dakota. Heavy snow expected from northwestern Wyoming into southern Montana. Ongoing heavy showers and thunderstorms from Invest 96W could result in localized flash flooding, particularly in central or southern Guam early this morning. Read More >

Current conditions at

Emigrant Gap, Blue Canyon Nyack Airport (KBLU)

Lat: 39.27611°NLon: 120.70806°WElev: 5282.0ft.

Overcast

37°F

3°C

Humidity 93%
Wind Speed N 0 MPH
Barometer 30.1 in (1019.3 mb)
Dewpoint 36°F (2°C)
Visibility 10.00 mi
Last update 15 Oct 01:00 PM PDT
Extended Forecast for

Donner Summit CA

  • This Afternoon

    This Afternoon: Partly sunny, with a high near 44. Light west wind.

    High: 44 °F

    Partly Sunny

  • Tonight

    Tonight: Mostly clear, with a low around 26. Light northeast wind.

    Low: 26 °F

    Mostly Clear

  • Thursday

    Thursday: Sunny, with a high near 55. Northeast wind 3 to 5 mph.

    High: 55 °F

    Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 31. Light east northeast wind increasing to 5 to 10 mph in the evening. Winds could gust as high as 24 mph.

    Low: 31 °F

    Mostly Clear

  • Friday

    Friday: Sunny, with a high near 62. East northeast wind 5 to 7 mph becoming calm in the morning.

    High: 62 °F

    Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 36.

    Low: 36 °F

    Mostly Clear

  • Saturday

    Saturday: Sunny, with a high near 65.

    High: 65 °F

    Sunny

  • Saturday Night

    Saturday Night: Clear, with a low around 37.

    Low: 37 °F

    Clear

  • Sunday

    Sunday: Sunny, with a high near 57.

    High: 57 °F

    Sunny

Detailed Forecast

This Afternoon
Partly sunny, with a high near 44. Light west wind.
Tonight
Mostly clear, with a low around 26. Light northeast wind.
Thursday
Sunny, with a high near 55. Northeast wind 3 to 5 mph.
Thursday Night
Mostly clear, with a low around 31. Light east northeast wind increasing to 5 to 10 mph in the evening. Winds could gust as high as 24 mph.
Friday
Sunny, with a high near 62. East northeast wind 5 to 7 mph becoming calm in the morning.
Friday Night
Mostly clear, with a low around 36.
Saturday
Sunny, with a high near 65.
Saturday Night
Clear, with a low around 37.
Sunday
Sunny, with a high near 57.
Sunday Night
A slight chance of showers. Partly cloudy, with a low around 30.
Monday
Sunny, with a high near 55.
Monday Night
Mostly clear, with a low around 32.
Tuesday
Sunny, with a high near 57.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Donner Summit CA
 39.33°N 120.4°W (Elev. 6394 ft)
Last Update:
11:52 am PDT Oct 15, 2025
Forecast Valid:
1pm PDT Oct 15, 2025-6pm PDT Oct 21, 2025
 
Forecast Discussion
 
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Additional Resources

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National Digital Forecast Database

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Chance of Precipitation