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

Blizzard Conditions Continue Tonight Across Coastal Maine; Critical Fire Weather in the Southern Plains Tuesday

Heavy snow and strong winds will continue into Tuesday morning across Maine as the major winter storm departs off the coast. Blizzard Warnings and Winter Storm Warnings remain in effect. Strong winds and dry conditions will promote elevated to critical fire weather conditions across southeast Colorado into the southern High Plains Tuesday. Read More >

Current conditions at

Sisseton, Sisseton Municipal Airport (K8D3)

Lat: 45.67°NLon: 96.99°WElev: 1161ft.

24°F

-4°C

Humidity 55%
Wind Speed S 16 mph
Barometer 29.95 in (1017.9 mb)
Dewpoint 10°F (-12°C)
Visibility NA
Wind Chill11°F (-12°C)
Last update 23 Feb 7:56 pm CST
Extended Forecast for

Ortley SD

  • Tonight

    Tonight: Mostly cloudy, with a low around 20. South southwest wind 15 to 17 mph, with gusts as high as 29 mph.

    Low: 20 °F

    Mostly Cloudy

  • Tuesday

    Tuesday: Mostly cloudy, with a temperature rising to near 30 by 9am, then falling to around 23 during the remainder of the day. Blustery, with a northwest wind 17 to 24 mph, with gusts as high as 39 mph.

    High: 30 °F⇓

    Mostly Cloudy
    and Blustery

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 4. North northwest wind 6 to 16 mph, with gusts as high as 29 mph.

    Low: 4 °F

    Partly Cloudy

  • Wednesday

    Wednesday: A chance of snow after noon. Mostly sunny, with a high near 22. North wind 5 to 8 mph becoming southeast in the afternoon. Chance of precipitation is 30%.

    High: 22 °F

    Mostly Sunny
    then Chance
    Snow

  • Wednesday Night

    Wednesday Night: A slight chance of snow before midnight. Mostly cloudy, with a low around 17. Southeast wind 7 to 10 mph becoming west southwest after midnight. Chance of precipitation is 20%.

    Low: 17 °F

    Slight Chance
    Snow then
    Mostly Cloudy

  • Thursday

    Thursday: Sunny, with a high near 40. West southwest wind 10 to 17 mph, with gusts as high as 28 mph.

    High: 40 °F

    Sunny

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 31. Southwest wind 10 to 15 mph, with gusts as high as 25 mph.

    Low: 31 °F

    Partly Cloudy

  • Friday

    Friday: Mostly sunny, with a high near 44. Breezy, with a west wind 15 to 22 mph becoming north northwest in the afternoon. Winds could gust as high as 34 mph.

    High: 44 °F

    Mostly Sunny
    and Breezy

  • Friday Night

    Friday Night: A slight chance of snow after midnight. Mostly cloudy, with a low around 6. North wind around 15 mph, with gusts as high as 26 mph. Chance of precipitation is 20%.

    Low: 6 °F

    Mostly Cloudy
    then Slight
    Chance Snow

Detailed Forecast

Tonight
Mostly cloudy, with a low around 20. South southwest wind 15 to 17 mph, with gusts as high as 29 mph.
Tuesday
Mostly cloudy, with a temperature rising to near 30 by 9am, then falling to around 23 during the remainder of the day. Blustery, with a northwest wind 17 to 24 mph, with gusts as high as 39 mph.
Tuesday Night
Partly cloudy, with a low around 4. North northwest wind 6 to 16 mph, with gusts as high as 29 mph.
Wednesday
A chance of snow after noon. Mostly sunny, with a high near 22. North wind 5 to 8 mph becoming southeast in the afternoon. Chance of precipitation is 30%.
Wednesday Night
A slight chance of snow before midnight. Mostly cloudy, with a low around 17. Southeast wind 7 to 10 mph becoming west southwest after midnight. Chance of precipitation is 20%.
Thursday
Sunny, with a high near 40. West southwest wind 10 to 17 mph, with gusts as high as 28 mph.
Thursday Night
Partly cloudy, with a low around 31. Southwest wind 10 to 15 mph, with gusts as high as 25 mph.
Friday
Mostly sunny, with a high near 44. Breezy, with a west wind 15 to 22 mph becoming north northwest in the afternoon. Winds could gust as high as 34 mph.
Friday Night
A slight chance of snow after midnight. Mostly cloudy, with a low around 6. North wind around 15 mph, with gusts as high as 26 mph. Chance of precipitation is 20%.
Saturday
A slight chance of snow. Mostly cloudy, with a high near 13. Chance of precipitation is 20%.
Saturday Night
A slight chance of snow. Mostly cloudy, with a low around -1. Chance of precipitation is 20%.
Sunday
A chance of snow. Partly sunny, with a high near 17. Chance of precipitation is 30%.
Sunday Night
A slight chance of snow. Mostly cloudy, with a low around 7. Chance of precipitation is 20%.
Monday
Mostly sunny, with a high near 28.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Ortley SD
 45.33°N 97.18°W (Elev. 1850 ft)
Last Update:
7:37 pm CST Feb 23, 2026
Forecast Valid:
8pm CST Feb 23, 2026-6pm CST Mar 2, 2026
 
Forecast Discussion
 
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Additional Resources

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Hourly Weather Forecast

National Digital Forecast Database

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation