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

Significant and Catastrophic Flooding in the Pacific Northwest; Very Cold Temperatures in the Northern Plains

The atmospheric river over the Pacific Northwest will begin to subside today, but lingering rainfall will exacerbate ongoing catastrophic major river flooding, and landslides will continue across portions of western Washington and northwest Oregon for several days. Arctic air will plummet southward into the Northern Plains today, bringing cold air in the single digits to the region by Friday. Read More >

Hazardous Weather Conditions

Current conditions at

Boise Air Terminal (KBOI)

Lat: 43.56704°NLon: 116.24053°WElev: 2822.0ft.

Clear

54°F

12°C

Humidity 54%
Wind Speed E 4 MPH
Barometer 30.23 in (1023.71 mb)
Dewpoint 37°F (3°C)
Visibility 10.00 mi
Last update 11 Dec 11:35 AM MST
Extended Forecast for

Boise ID

Air Stagnation Advisory December 12, 05:00am until December 15, 05:00am
Click here for hazard details and duration
Air Stagnation Advisory

  • Today

    Today: Sunny, with a high near 58. Light north northwest wind.

    High: 58 °F

    Sunny

  • Tonight

    Tonight: Mostly clear, with a low around 38. Light and variable wind.

    Low: 38 °F

    Mostly Clear

  • Friday

    Friday: Sunny, with a high near 56. Calm wind.

    High: 56 °F

    Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 33. Light and variable wind.

    Low: 33 °F

    Mostly Clear

  • Saturday

    Saturday: Sunny, with a high near 54. Light and variable wind.

    High: 54 °F

    Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 32.

    Low: 32 °F

    Mostly Clear

  • Sunday

    Sunday: Mostly sunny, with a high near 52.

    High: 52 °F

    Mostly Sunny

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 34.

    Low: 34 °F

    Partly Cloudy

  • Monday

    Monday: A 20 percent chance of rain after 11am. Partly sunny, with a high near 54.

    High: 54 °F

    Slight Chance
    Rain

Detailed Forecast

Today
Sunny, with a high near 58. Light north northwest wind.
Tonight
Mostly clear, with a low around 38. Light and variable wind.
Friday
Sunny, with a high near 56. Calm wind.
Friday Night
Mostly clear, with a low around 33. Light and variable wind.
Saturday
Sunny, with a high near 54. Light and variable wind.
Saturday Night
Mostly clear, with a low around 32.
Sunday
Mostly sunny, with a high near 52.
Sunday Night
Partly cloudy, with a low around 34.
Monday
A 20 percent chance of rain after 11am. Partly sunny, with a high near 54.
Monday Night
A 50 percent chance of rain. Mostly cloudy, with a low around 41.
Tuesday
A 40 percent chance of rain. Mostly cloudy, with a high near 56.
Tuesday Night
A 50 percent chance of rain. Mostly cloudy, with a low around 41.
Wednesday
A chance of rain and snow. Partly sunny, with a high near 52. Chance of precipitation is 50%.
Basemap Options
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Boise ID
 43.59°N 116.24°W (Elev. 2766 ft)
Last Update:
2:04 am MST Dec 11, 2025
Forecast Valid:
11am MST Dec 11, 2025-6pm MST Dec 17, 2025
 
Forecast Discussion
 
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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

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation