Heavy Great Lakes Snow through Friday; Extreme Cold and Potential for Major Winter Storm Late Week into this Weekend

Multiple clipper systems will bring cold temperatures and enhance lake-effect snow downwind of the Great Lakes. An arctic blast will bring frigid temperatures accompanied with gusty winds that may lead to dangerous wind chills beginning in the Northern Plains Thursday before expanding to the South and East. An expansive winter storm will start Friday in the Southern Rockies/Plains and Mid-South. Read More >

Current conditions at

Ririe (ITD18)

Lat: 43.6111°NLon: 111.70531°WElev: 5106.0ft.

NA

20°F

-7°C

Humidity 93%
Wind Speed SSE 7 MPH
Barometer NA
Dewpoint 18°F (-8°C)
Visibility 1.24 mi
Wind Chill11°F (-12°C)
Last update 20 Jan 11:15 PM MST
Extended Forecast for

11 Miles WNW Swan Valley ID

  • Tonight

    Tonight: Partly cloudy, with a low around 12. Wind chill values as low as -1. East northeast wind 8 to 10 mph becoming southeast after midnight.

    Low: 12 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Mostly sunny, with a high near 29. Wind chill values as low as -1. South wind 6 to 10 mph.

    High: 29 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: Mostly cloudy, with a low around 15. South southeast wind 5 to 9 mph.

    Low: 15 °F

    Mostly Cloudy

  • Thursday

    Thursday: Mostly sunny, with a high near 29. Southeast wind 6 to 10 mph becoming west in the afternoon.

    High: 29 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 13. West northwest wind 5 to 8 mph becoming east southeast in the evening.

    Low: 13 °F

    Partly Cloudy

  • Friday

    Friday: Mostly sunny, with a high near 26.

    High: 26 °F

    Mostly Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 5.

    Low: 5 °F

    Mostly Clear

  • Saturday

    Saturday: Sunny, with a high near 20.

    High: 20 °F

    Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 6.

    Low: 6 °F

    Mostly Clear

Detailed Forecast

Tonight
Partly cloudy, with a low around 12. Wind chill values as low as -1. East northeast wind 8 to 10 mph becoming southeast after midnight.
Wednesday
Mostly sunny, with a high near 29. Wind chill values as low as -1. South wind 6 to 10 mph.
Wednesday Night
Mostly cloudy, with a low around 15. South southeast wind 5 to 9 mph.
Thursday
Mostly sunny, with a high near 29. Southeast wind 6 to 10 mph becoming west in the afternoon.
Thursday Night
Partly cloudy, with a low around 13. West northwest wind 5 to 8 mph becoming east southeast in the evening.
Friday
Mostly sunny, with a high near 26.
Friday Night
Mostly clear, with a low around 5.
Saturday
Sunny, with a high near 20.
Saturday Night
Mostly clear, with a low around 6.
Sunday
Sunny, with a high near 24.
Sunday Night
Partly cloudy, with a low around 13.
Monday
Mostly sunny, with a high near 29.
Monday Night
Mostly cloudy, with a low around 15.
Tuesday
Mostly sunny, with a high near 32.
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ABOUT THIS FORECAST

 
Point Forecast:
11 Miles WNW Swan Valley ID
 43.48°N 111.53°W (Elev. 6657 ft)
10:31 pm MST Jan 20, 2026
11pm MST Jan 20, 2026-6pm MST Jan 27, 2026
 
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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