Lake-effect Snow and Whiteout Conditions in the Great Lakes Region; Below-average Temperatures in the East

Heavy lake-effect and lake-enhanced snow will persist downwind of the Great Lakes and produce some whiteout conditions that could cause difficult travel conditions. A coastal low will produce moderate to heavy snow over parts of southern and eastern New England into the afternoon. Below average temperatures are expected across the eastern U.S., particularly with chilly morning temperatures. Read More >

Current conditions at

Ririe (ITD18)

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

unknown precip

18°F

-8°C

Humidity 92%
Wind Speed NW 1 MPH
Barometer NA
Dewpoint 16°F (-9°C)
Visibility 0.53 mi
Last update 19 Jan 08:15 PM MST
Extended Forecast for

Swan Valley ID

  • Tonight

    Tonight: Patchy freezing fog. Mostly clear, with a low around 13. East wind 3 to 6 mph.

    Low: 13 °F

    Patchy
    Freezing Fog

  • Tuesday

    Tuesday: Patchy freezing fog before 3pm. Mostly sunny, with a high near 33. East southeast wind around 6 mph becoming light and variable  in the afternoon.

    High: 33 °F

    Patchy
    Freezing Fog

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 12. Calm wind becoming southeast around 6 mph after midnight.

    Low: 12 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny, with a high near 34. Southeast wind around 6 mph becoming light and variable  in the afternoon.

    High: 34 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 14. Calm wind becoming southeast around 6 mph after midnight.

    Low: 14 °F

    Partly Cloudy

  • Thursday

    Thursday: Mostly sunny, with a high near 36.

    High: 36 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: Mostly cloudy, with a low around 14.

    Low: 14 °F

    Mostly Cloudy

  • Friday

    Friday: Mostly sunny, with a high near 33.

    High: 33 °F

    Mostly Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 9.

    Low: 9 °F

    Mostly Clear

Detailed Forecast

Tonight
Patchy freezing fog. Mostly clear, with a low around 13. East wind 3 to 6 mph.
Tuesday
Patchy freezing fog before 3pm. Mostly sunny, with a high near 33. East southeast wind around 6 mph becoming light and variable in the afternoon.
Tuesday Night
Mostly clear, with a low around 12. Calm wind becoming southeast around 6 mph after midnight.
Wednesday
Sunny, with a high near 34. Southeast wind around 6 mph becoming light and variable in the afternoon.
Wednesday Night
Partly cloudy, with a low around 14. Calm wind becoming southeast around 6 mph after midnight.
Thursday
Mostly sunny, with a high near 36.
Thursday Night
Mostly cloudy, with a low around 14.
Friday
Mostly sunny, with a high near 33.
Friday Night
Mostly clear, with a low around 9.
Saturday
Sunny, with a high near 31.
Saturday Night
Partly cloudy, with a low around 14.
Sunday
A 20 percent chance of snow. Mostly sunny, with a high near 35.
Sunday Night
A 20 percent chance of snow. Mostly cloudy, with a low around 20.
Monday
A 30 percent chance of snow. Partly sunny, with a high near 38.
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ABOUT THIS FORECAST

 
Point Forecast:
Swan Valley ID
 43.46°N 111.34°W (Elev. 5509 ft)
4:31 pm MST Jan 19, 2026
8pm MST Jan 19, 2026-6pm MST Jan 26, 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