Prolonged Extreme Cold; Eastern U.S. Winter Storm

Another Arctic blast will surge south across the northern Plains tonight, crossing the Midwest and reaching the Gulf Coast Friday night. Dangerously cold temperatures will persist across the eastern U.S. into early February. There is increasing confidence for significant heavy snow across much of the Southern Appalachians, Carolinas, and southern Mid-Atlantic Friday into Sunday. Read More >

Current conditions at

Ririe (ITD18)

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

NA

33°F

1°C

Humidity 74%
Wind Speed W 2 MPH
Barometer NA
Dewpoint 26°F (-3°C)
Visibility 1.24 mi
Last update 29 Jan 03:15 PM MST
Extended Forecast for

Swan Valley ID

  • Tonight

    Tonight: Patchy fog after 10pm.  Otherwise, mostly cloudy, with a low around 20. Light southeast wind.

    Low: 20 °F

    Patchy Fog

  • Friday

    Friday: A 20 percent chance of snow after 3pm.  Patchy fog before 1pm.  Otherwise, mostly cloudy, with a high near 37. East southeast wind 3 to 6 mph.

    High: 37 °F

    Patchy Fog
    then Slight
    Chance Snow
    and Patchy
    Fog

  • Friday Night

    Friday Night: Mostly cloudy, with a low around 21. Southeast wind 3 to 6 mph.

    Low: 21 °F

    Mostly Cloudy

  • Saturday

    Saturday: Mostly sunny, with a high near 42. Southeast wind around 6 mph becoming light and variable  in the afternoon.

    High: 42 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: Mostly cloudy, with a low around 23. Calm wind becoming east southeast around 6 mph after midnight.

    Low: 23 °F

    Mostly Cloudy

  • Sunday

    Sunday: Partly sunny, with a high near 46.

    High: 46 °F

    Partly Sunny

  • Sunday Night

    Sunday Night: Mostly cloudy, with a low around 26.

    Low: 26 °F

    Mostly Cloudy

  • Monday

    Monday: Mostly sunny, with a high near 41.

    High: 41 °F

    Mostly Sunny

  • Monday Night

    Monday Night: Mostly cloudy, with a low around 21.

    Low: 21 °F

    Mostly Cloudy

Detailed Forecast

Tonight
Patchy fog after 10pm. Otherwise, mostly cloudy, with a low around 20. Light southeast wind.
Friday
A 20 percent chance of snow after 3pm. Patchy fog before 1pm. Otherwise, mostly cloudy, with a high near 37. East southeast wind 3 to 6 mph.
Friday Night
Mostly cloudy, with a low around 21. Southeast wind 3 to 6 mph.
Saturday
Mostly sunny, with a high near 42. Southeast wind around 6 mph becoming light and variable in the afternoon.
Saturday Night
Mostly cloudy, with a low around 23. Calm wind becoming east southeast around 6 mph after midnight.
Sunday
Partly sunny, with a high near 46.
Sunday Night
Mostly cloudy, with a low around 26.
Monday
Mostly sunny, with a high near 41.
Monday Night
Mostly cloudy, with a low around 21.
Tuesday
Mostly sunny, with a high near 39.
Tuesday Night
Partly cloudy, with a low around 19.
Wednesday
Sunny, with a high near 42.
Wednesday Night
Partly cloudy, with a low around 21.
Thursday
Sunny, with a high near 46.
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ABOUT THIS FORECAST

 
Point Forecast:
Swan Valley ID
 43.46°N 111.34°W (Elev. 5509 ft)
1:24 pm MST Jan 29, 2026
3pm MST Jan 29, 2026-6pm MST Feb 5, 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