Prolonged Atmospheric River in the Northwest; Snow in the North-Central US

A prolonged atmospheric river will bring heavy rainfall which may lead to widespread urban and river flooding, heavy mountain snow, along with gusty winds to the Pacific Northwest into the northern Rockies through much of the week. A clipper will bring a period of snow across the upper Midwest and the Great Lakes into Tuesday, before a stronger system bring more wintry impacts. Read More >

Current conditions at

Emigrant Gap, Blue Canyon Nyack Airport (KBLU)

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

Clear

48°F

9°C

Humidity 46%
Wind Speed NNE 5 MPH
Barometer 30.36 in (1028.11 mb)
Dewpoint 28°F (-2°C)
Visibility 10.00 mi
Wind Chill46°F (8°C)
Last update 09 Dec 02:00 AM PST
Extended Forecast for

8 Miles W Donner Summit CA

  • Overnight

    Overnight: Mostly clear, with a steady temperature around 39. Light north northeast wind.

    Low: 39 °F

    Mostly Clear

  • Tuesday

    Tuesday: Widespread haze after 10am. Sunny, with a high near 56. Calm wind.

    High: 56 °F

    Haze

  • Tuesday Night

    Tuesday Night: Clear, with a low around 39. East northeast wind around 7 mph.

    Low: 39 °F

    Clear

  • Wednesday

    Wednesday: Sunny, with a high near 58. East northeast wind around 6 mph becoming calm  in the morning.

    High: 58 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Clear, with a low around 39. East northeast wind around 7 mph.

    Low: 39 °F

    Clear

  • Thursday

    Thursday: Sunny, with a high near 58.

    High: 58 °F

    Sunny

  • Thursday Night

    Thursday Night: Clear, with a low around 37.

    Low: 37 °F

    Clear

  • Friday

    Friday: Sunny, with a high near 57.

    High: 57 °F

    Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 37.

    Low: 37 °F

    Mostly Clear

Detailed Forecast

Overnight
Mostly clear, with a steady temperature around 39. Light north northeast wind.
Tuesday
Widespread haze after 10am. Sunny, with a high near 56. Calm wind.
Tuesday Night
Clear, with a low around 39. East northeast wind around 7 mph.
Wednesday
Sunny, with a high near 58. East northeast wind around 6 mph becoming calm in the morning.
Wednesday Night
Clear, with a low around 39. East northeast wind around 7 mph.
Thursday
Sunny, with a high near 58.
Thursday Night
Clear, with a low around 37.
Friday
Sunny, with a high near 57.
Friday Night
Mostly clear, with a low around 37.
Saturday
Sunny, with a high near 55.
Saturday Night
Mostly clear, with a low around 34.
Sunday
Mostly sunny, with a high near 49.
Sunday Night
A slight chance of rain and snow showers. Partly cloudy, with a low around 35.
Monday
A chance of rain and snow showers. Partly sunny, with a high near 49.
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ABOUT THIS FORECAST

 
Point Forecast:
8 Miles W Donner Summit CA
 39.33°N 120.55°W (Elev. 6841 ft)
1:20 am PST Dec 9, 2025
2am PST Dec 9, 2025-6pm PST Dec 15, 2025
 
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Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database