Arctic Air Mass Lingers for Areas of the East; Critical Fire Weather for the Plains; Active Weather Pattern for Hawaii

Arctic air lingers for the east, however, winds will slowly subside and a slow moderating trend starts during the week. Moisture continues to provide rainfall and higher elevation snow for the Pacific Northwest, northern California and northern Rockies through Monday. For the State of Hawaii, dangerous surf conditions with strong winds and heavy rainfall will impact the islands through Monday. Read More >

Hazardous Weather Conditions

Current conditions at

Chamberlain, Chamberlain Municipal Airport (K9V9)

Lat: 43.77°NLon: 99.32°WElev: 1693ft.

Fair

36°F

2°C

Humidity 77%
Wind Speed NW 3 mph
Barometer 30.07 in
Dewpoint 29°F (-2°C)
Visibility 10.00 mi
Last update 8 Feb 9:35 am CST
Extended Forecast for

Fort Thompson SD

  • Today

    Today: Mostly sunny, with a high near 57. Calm wind becoming west 5 to 7 mph in the afternoon.

    High: 57 °F

    Mostly Sunny

  • Tonight

    Tonight: Partly cloudy, with a low around 33. South southwest wind around 5 mph becoming southeast after midnight.

    Low: 33 °F

    Partly Cloudy

  • Monday

    Monday: Partly sunny, with a high near 52. South wind 5 to 13 mph becoming north in the afternoon.

    High: 52 °F

    Partly Sunny

  • Monday Night

    Monday Night: Mostly cloudy, with a low around 27. Northwest wind 6 to 10 mph.

    Low: 27 °F

    Mostly Cloudy

  • Tuesday

    Tuesday: Partly sunny, with a high near 47. West northwest wind 5 to 7 mph.

    High: 47 °F

    Partly Sunny

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 28. Light and variable wind becoming south southeast around 6 mph after midnight.

    Low: 28 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: A chance of rain after noon.  Mostly cloudy, with a high near 47. Southeast wind 6 to 14 mph.  Chance of precipitation is 30%.

    High: 47 °F

    Mostly Cloudy
    then Chance
    Rain

  • Wednesday Night

    Wednesday Night: A chance of rain before midnight, then a chance of rain and snow.  Mostly cloudy, with a low around 29. East southeast wind 8 to 11 mph.  Chance of precipitation is 40%.

    Low: 29 °F

    Chance Rain
    then Chance
    Rain/Snow

  • Thursday

    Thursday: A slight chance of snow before noon.  Partly sunny, with a high near 46. East wind 7 to 9 mph becoming north in the morning.  Chance of precipitation is 20%.

    High: 46 °F

    Slight Chance
    Snow then
    Partly Sunny

Detailed Forecast

Today
Mostly sunny, with a high near 57. Calm wind becoming west 5 to 7 mph in the afternoon.
Tonight
Partly cloudy, with a low around 33. South southwest wind around 5 mph becoming southeast after midnight.
Monday
Partly sunny, with a high near 52. South wind 5 to 13 mph becoming north in the afternoon.
Monday Night
Mostly cloudy, with a low around 27. Northwest wind 6 to 10 mph.
Tuesday
Partly sunny, with a high near 47. West northwest wind 5 to 7 mph.
Tuesday Night
Mostly cloudy, with a low around 28. Light and variable wind becoming south southeast around 6 mph after midnight.
Wednesday
A chance of rain after noon. Mostly cloudy, with a high near 47. Southeast wind 6 to 14 mph. Chance of precipitation is 30%.
Wednesday Night
A chance of rain before midnight, then a chance of rain and snow. Mostly cloudy, with a low around 29. East southeast wind 8 to 11 mph. Chance of precipitation is 40%.
Thursday
A slight chance of snow before noon. Partly sunny, with a high near 46. East wind 7 to 9 mph becoming north in the morning. Chance of precipitation is 20%.
Thursday Night
Mostly cloudy, with a low around 25.
Friday
Mostly sunny, with a high near 49.
Friday Night
Partly cloudy, with a low around 27.
Saturday
A slight chance of rain. Mostly sunny, with a high near 47. Chance of precipitation is 20%.
Basemap Options
Click map to change the forecast location
Loading map...

ABOUT THIS FORECAST

 
Point Forecast:
Fort Thompson SD
 44.05°N 99.4°W (Elev. 1447 ft)
9:36 am CST Feb 8, 2026
9am CST Feb 8, 2026-6pm CST Feb 14, 2026
 
Get as KML Get as XML

Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database