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

Sidney-Richland (KSDY)

Lat: 47.7°NLon: 104.2°WElev: 1985.0ft.

Clear

N/A

Humidity 92%
Wind Speed SSW 6 MPH
Barometer NA
Dewpoint N/A
Visibility 10.00 mi
Last update 10 Jan 09:30 PM MST
Extended Forecast for

8 Miles SSW Sidney MT

Winter Weather Advisory January 20, 02:00am until January 20, 05:00pm
Click here for hazard details and duration
Winter Weather Advisory
  • M.L.King Day

    M.L.King Day: Cloudy, with a high near 19. Wind chill values between -5 and 5. West wind 6 to 13 mph becoming north northwest in the afternoon. Winds could gust as high as 20 mph.

    High: 19 °F

    Cloudy

  • Tonight

    Tonight: A 20 percent chance of snow after 4am.  Cloudy, with a low around 9. Calm wind.

    Low: 9 °F

    Cloudy then
    Slight Chance
    Snow

  • Tuesday

    Tuesday: Snow likely before 11am.  Cloudy, with a high near 25. Light and variable wind becoming northwest 13 to 18 mph in the morning. Winds could gust as high as 28 mph.  Chance of precipitation is 70%. New snow accumulation of 1 to 2 inches possible.

    High: 25 °F

    Snow Likely
    then Mostly
    Cloudy

  • Tuesday Night

    Tuesday Night: A 40 percent chance of snow after 11pm.  Mostly cloudy, with a low around 11. West northwest wind 13 to 16 mph, with gusts as high as 25 mph.  New snow accumulation of less than a half inch possible.

    Low: 11 °F

    Chance Snow

  • Wednesday

    Wednesday: Partly sunny, with a high near 24. Blustery, with a northwest wind 20 to 22 mph, with gusts as high as 34 mph.

    High: 24 °F

    Partly Sunny
    and Blustery

  • Wednesday Night

    Wednesday Night: Mostly cloudy, with a low around 1. West northwest wind 7 to 11 mph, with gusts as high as 20 mph.

    Low: 1 °F

    Mostly Cloudy

  • Thursday

    Thursday: Mostly cloudy, with a high near 9. North northwest wind 6 to 10 mph.

    High: 9 °F

    Mostly Cloudy

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around -16. North wind 3 to 8 mph.

    Low: -16 °F

    Partly Cloudy

  • Friday

    Friday: Mostly sunny, with a high near 1. Light and variable wind becoming east around 6 mph in the afternoon.

    High: 1 °F

    Mostly Sunny

Detailed Forecast

M.L.King Day
Cloudy, with a high near 19. Wind chill values between -5 and 5. West wind 6 to 13 mph becoming north northwest in the afternoon. Winds could gust as high as 20 mph.
Tonight
A 20 percent chance of snow after 4am. Cloudy, with a low around 9. Calm wind.
Tuesday
Snow likely before 11am. Cloudy, with a high near 25. Light and variable wind becoming northwest 13 to 18 mph in the morning. Winds could gust as high as 28 mph. Chance of precipitation is 70%. New snow accumulation of 1 to 2 inches possible.
Tuesday Night
A 40 percent chance of snow after 11pm. Mostly cloudy, with a low around 11. West northwest wind 13 to 16 mph, with gusts as high as 25 mph. New snow accumulation of less than a half inch possible.
Wednesday
Partly sunny, with a high near 24. Blustery, with a northwest wind 20 to 22 mph, with gusts as high as 34 mph.
Wednesday Night
Mostly cloudy, with a low around 1. West northwest wind 7 to 11 mph, with gusts as high as 20 mph.
Thursday
Mostly cloudy, with a high near 9. North northwest wind 6 to 10 mph.
Thursday Night
Partly cloudy, with a low around -16. North wind 3 to 8 mph.
Friday
Mostly sunny, with a high near 1. Light and variable wind becoming east around 6 mph in the afternoon.
Friday Night
Partly cloudy, with a low around -10. South southeast wind around 6 mph.
Saturday
Mostly sunny, with a high near 13. South southeast wind 5 to 8 mph becoming southwest in the afternoon.
Saturday Night
Partly cloudy, with a low around 0.
Sunday
Partly sunny, with a high near 22.
Basemap Options
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ABOUT THIS FORECAST

 
Point Forecast:
8 Miles SSW Sidney MT
 47.61°N 104.24°W (Elev. 1972 ft)
1:57 am MST Jan 19, 2026
8am MST Jan 19, 2026-6pm MST Jan 25, 2026
 
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Additional Resources

Radar & Satellite Image

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Hourly Weather Forecast

National Digital Forecast Database