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

Excessive Rainfall Areas Today; Tropical Storm Jerry Forms

Heavy to excessive rainfall is possible today and tonight ahead of and along a cold front crossing portions of Kentucky, middle Tennessee, the Ohio Valley and New Mexico. Tropical Storm Jerry, the tenth named storm of the 2025 season, has formed over the central tropical Atlantic. Jerry is expected to be near or north of the northern Leeward Islands on Thursday and Friday. Read More >

Hazardous Weather Conditions

Current conditions at

Sisseton, Sisseton Municipal Airport (K8D3)

Lat: 45.67°NLon: 96.99°WElev: 1161ft.

53°F

12°C

Humidity 51%
Wind Speed N 9 mph
Barometer 30.28 in (1025.6 mb)
Dewpoint 35°F (2°C)
Visibility NA
Wind Chill50°F (10°C)
Last update 7 Oct 11:56 am CDT
Extended Forecast for

Summit SD

  • This Afternoon

    This Afternoon: Sunny, with a high near 57. North northeast wind around 7 mph.

    High: 57 °F

    Sunny

  • Tonight

    Tonight: Clear, with a low around 40. East northeast wind 5 to 10 mph becoming south southeast after midnight.

    Low: 40 °F

    Clear

  • Wednesday

    Wednesday: Sunny, with a high near 67. South wind 11 to 18 mph, with gusts as high as 30 mph.

    High: 67 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 52. Breezy, with a south southeast wind 15 to 20 mph, with gusts as high as 32 mph.

    Low: 52 °F

    Mostly Clear
    then Mostly
    Clear and
    Breezy

  • Thursday

    Thursday: Sunny, with a high near 70. Breezy, with a south wind 15 to 21 mph, with gusts as high as 34 mph.

    High: 70 °F

    Sunny and
    Breezy

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 48. South southwest wind 8 to 10 mph becoming north northwest after midnight.

    Low: 48 °F

    Mostly Clear

  • Friday

    Friday: Sunny, with a high near 66. North wind around 10 mph.

    High: 66 °F

    Sunny

  • Friday Night

    Friday Night: Partly cloudy, with a low around 51. East northeast wind 7 to 14 mph becoming southeast after midnight. Winds could gust as high as 22 mph.

    Low: 51 °F

    Partly Cloudy

  • Saturday

    Saturday: A chance of showers. Mostly sunny, with a high near 71. Breezy, with a south southeast wind 15 to 21 mph, with gusts as high as 36 mph. Chance of precipitation is 30%.

    High: 71 °F

    Chance
    Showers and
    Breezy

Detailed Forecast

This Afternoon
Sunny, with a high near 57. North northeast wind around 7 mph.
Tonight
Clear, with a low around 40. East northeast wind 5 to 10 mph becoming south southeast after midnight.
Wednesday
Sunny, with a high near 67. South wind 11 to 18 mph, with gusts as high as 30 mph.
Wednesday Night
Mostly clear, with a low around 52. Breezy, with a south southeast wind 15 to 20 mph, with gusts as high as 32 mph.
Thursday
Sunny, with a high near 70. Breezy, with a south wind 15 to 21 mph, with gusts as high as 34 mph.
Thursday Night
Mostly clear, with a low around 48. South southwest wind 8 to 10 mph becoming north northwest after midnight.
Friday
Sunny, with a high near 66. North wind around 10 mph.
Friday Night
Partly cloudy, with a low around 51. East northeast wind 7 to 14 mph becoming southeast after midnight. Winds could gust as high as 22 mph.
Saturday
A chance of showers. Mostly sunny, with a high near 71. Breezy, with a south southeast wind 15 to 21 mph, with gusts as high as 36 mph. Chance of precipitation is 30%.
Saturday Night
A chance of showers, mainly after 1am. Partly cloudy, with a low around 59. Breezy. Chance of precipitation is 40%.
Sunday
A chance of showers. Mostly sunny, with a high near 70. Chance of precipitation is 40%.
Sunday Night
A slight chance of showers. Partly cloudy, with a low around 44. Chance of precipitation is 20%.
Columbus Day
A slight chance of showers. Mostly sunny, with a high near 59. Chance of precipitation is 20%.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Summit SD
 45.29°N 97.03°W (Elev. 1962 ft)
Last Update:
11:45 am CDT Oct 7, 2025
Forecast Valid:
12pm CDT Oct 7, 2025-6pm CDT Oct 13, 2025
 
Forecast Discussion
 
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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

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation