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 >

Current conditions at

Boise Air Terminal (KBOI)

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

Clear

45°F

7°C

Humidity 70%
Wind Speed ESE 8 MPH
Barometer 30.21 in (1023.03 mb)
Dewpoint 35°F (2°C)
Visibility 10.00 mi
Wind Chill41°F (5°C)
Last update 11 Dec 09:20 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 and variable wind.

    High: 58 °F

    Sunny

  • Tonight

    Tonight: Mostly clear, with a low around 39. Calm wind.

    Low: 39 °F

    Mostly Clear

  • Friday

    Friday: Sunny, with a high near 57. Calm wind.

    High: 57 °F

    Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 34. Light and variable wind.

    Low: 34 °F

    Mostly Clear

  • Saturday

    Saturday: Sunny, with a high near 55. Light and variable wind.

    High: 55 °F

    Sunny

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 33.

    Low: 33 °F

    Partly Cloudy

  • Sunday

    Sunday: Mostly sunny, with a high near 52.

    High: 52 °F

    Mostly Sunny

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 35.

    Low: 35 °F

    Partly Cloudy

  • Monday

    Monday: A 20 percent chance of rain after 11am.  Partly sunny, with a high near 55.

    High: 55 °F

    Slight Chance
    Rain

Detailed Forecast

Today
Sunny, with a high near 58. Light and variable wind.
Tonight
Mostly clear, with a low around 39. Calm wind.
Friday
Sunny, with a high near 57. Calm wind.
Friday Night
Mostly clear, with a low around 34. Light and variable wind.
Saturday
Sunny, with a high near 55. Light and variable wind.
Saturday Night
Partly cloudy, with a low around 33.
Sunday
Mostly sunny, with a high near 52.
Sunday Night
Partly cloudy, with a low around 35.
Monday
A 20 percent chance of rain after 11am. Partly sunny, with a high near 55.
Monday Night
A 50 percent chance of rain. Mostly cloudy, with a low around 42.
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 53. Chance of precipitation is 50%.
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ABOUT THIS FORECAST

 
Point Forecast:
Boise ID
 43.62°N 116.22°W (Elev. 2710 ft)
2:04 am MST Dec 11, 2025
9am MST Dec 11, 2025-6pm MST Dec 17, 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