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

Ravalli County Airport (KHRF)

Lat: 46.25463°NLon: 114.1246°WElev: 3644.0ft.

Clear

12°F

-11°C

Humidity 85%
Wind Speed N 0 MPH
Barometer 30.43 in (1030.48 mb)
Dewpoint 9°F (-13°C)
Visibility 10.00 mi
Last update 19 Jan 06:55 AM MST
Extended Forecast for

14 Miles ENE Darby MT

  • M.L.King Day

    M.L.King Day: Sunny, with a high near 28. West southwest wind around 6 mph.

    High: 28 °F

    Sunny

  • Tonight

    Tonight: Mostly clear, with a low around 19. Southwest wind 6 to 8 mph.

    Low: 19 °F

    Mostly Clear

  • Tuesday

    Tuesday: Mostly cloudy, then gradually becoming sunny, with a high near 27. West northwest wind 3 to 7 mph.

    High: 27 °F

    Decreasing
    Clouds

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 14. South wind 3 to 6 mph.

    Low: 14 °F

    Mostly Clear

  • Wednesday

    Wednesday: Mostly sunny, with a high near 27. South wind around 5 mph becoming light and variable  in the afternoon.

    High: 27 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 16.

    Low: 16 °F

    Partly Cloudy

  • Thursday

    Thursday: Partly sunny, with a high near 27.

    High: 27 °F

    Partly Sunny

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 12.

    Low: 12 °F

    Partly Cloudy

  • Friday

    Friday: A slight chance of snow after 11am.  Mostly sunny, with a high near 22.

    High: 22 °F

    Slight Chance
    Snow

Detailed Forecast

M.L.King Day
Sunny, with a high near 28. West southwest wind around 6 mph.
Tonight
Mostly clear, with a low around 19. Southwest wind 6 to 8 mph.
Tuesday
Mostly cloudy, then gradually becoming sunny, with a high near 27. West northwest wind 3 to 7 mph.
Tuesday Night
Mostly clear, with a low around 14. South wind 3 to 6 mph.
Wednesday
Mostly sunny, with a high near 27. South wind around 5 mph becoming light and variable in the afternoon.
Wednesday Night
Partly cloudy, with a low around 16.
Thursday
Partly sunny, with a high near 27.
Thursday Night
Partly cloudy, with a low around 12.
Friday
A slight chance of snow after 11am. Mostly sunny, with a high near 22.
Friday Night
Partly cloudy, with a low around 13.
Saturday
A slight chance of snow. Mostly sunny, with a high near 24.
Saturday Night
A slight chance of snow. Partly cloudy, with a low around 17.
Sunday
A chance of snow. Partly sunny, with a high near 29.
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ABOUT THIS FORECAST

 
Point Forecast:
14 Miles ENE Darby MT
 46.09°N 113.9°W (Elev. 7303 ft)
2:07 am MST Jan 19, 2026
7am MST Jan 19, 2026-6pm MST Jan 25, 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