National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

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 >

Hazardous Weather Conditions

Current conditions at

South Big Horn County Airport (KGEY)

Lat: 44.5174°NLon: 108.0752°WElev: 3934.0ft.

Clear

10°F

-12°C

Humidity 87%
Wind Speed ESE 4 MPH
Barometer 30.16 in (1021.34 mb)
Dewpoint 7°F (-14°C)
Visibility 10.00 mi
Wind Chill3°F (-16°C)
Last update 21 Jan 05:53 AM MST
Extended Forecast for

Otto WY

  • Today

    Today: Sunny, with a high near 33. Light and variable wind becoming north northwest 6 to 11 mph in the morning.

    High: 33 °F

    Sunny

  • Tonight

    Tonight: Partly cloudy, with a low around 7. Wind chill values as low as zero. West northwest wind 3 to 5 mph.

    Low: 7 °F

    Partly Cloudy

  • Thursday

    Thursday: Mostly sunny, with a high near 26. Wind chill values as low as -5. North northwest wind 6 to 14 mph, with gusts as high as 21 mph.

    High: 26 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: Mostly cloudy, with a low around 2. Wind chill values as low as -10. Blustery, with a northwest wind 10 to 15 mph, with gusts as high as 23 mph.

    Low: 2 °F

    Mostly Cloudy
    and Blustery
    then Mostly
    Cloudy

  • Friday

    Friday: Mostly cloudy, with a high near 16. Northwest wind 8 to 13 mph, with gusts as high as 20 mph.

    High: 16 °F

    Mostly Cloudy

  • Friday Night

    Friday Night: Partly cloudy, with a low around -5. Northwest wind 6 to 11 mph becoming light and variable after midnight.

    Low: -5 °F

    Partly Cloudy

  • Saturday

    Saturday: Mostly sunny, with a high near 22. Calm wind becoming southeast around 6 mph in the afternoon.

    High: 22 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 1.

    Low: 1 °F

    Partly Cloudy

  • Sunday

    Sunday: Mostly sunny, with a high near 26.

    High: 26 °F

    Mostly Sunny

Detailed Forecast

Today
Sunny, with a high near 33. Light and variable wind becoming north northwest 6 to 11 mph in the morning.
Tonight
Partly cloudy, with a low around 7. Wind chill values as low as zero. West northwest wind 3 to 5 mph.
Thursday
Mostly sunny, with a high near 26. Wind chill values as low as -5. North northwest wind 6 to 14 mph, with gusts as high as 21 mph.
Thursday Night
Mostly cloudy, with a low around 2. Wind chill values as low as -10. Blustery, with a northwest wind 10 to 15 mph, with gusts as high as 23 mph.
Friday
Mostly cloudy, with a high near 16. Northwest wind 8 to 13 mph, with gusts as high as 20 mph.
Friday Night
Partly cloudy, with a low around -5. Northwest wind 6 to 11 mph becoming light and variable after midnight.
Saturday
Mostly sunny, with a high near 22. Calm wind becoming southeast around 6 mph in the afternoon.
Saturday Night
Partly cloudy, with a low around 1.
Sunday
Mostly sunny, with a high near 26.
Sunday Night
Partly cloudy, with a low around 2.
Monday
Mostly sunny, with a high near 34.
Monday Night
Partly cloudy, with a low around 11.
Tuesday
Mostly sunny, with a high near 39.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Otto WY
 44.39°N 108.27°W (Elev. 4150 ft)
Last Update:
5:01 am MST Jan 21, 2026
Forecast Valid:
6am MST Jan 21, 2026-6pm MST Jan 27, 2026
 
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Additional Resources

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