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

Areas of Excessive Rainfall and Severe Thunderstorms; Typhoon Watch for Guam/CNMI

Heavy to excessive rainfall will continue today from the Texas Big Bend region into southern Oklahoma. Locally considerable flash and urban flooding is possible, and river flooding will continue in central Oklahoma. Scattered severe thunderstorms are possible in parts of the Mid-Atlantic Friday. A Typhoon Watch has been issued for Guam and CNMI. Read More >

Hazardous Weather Conditions

Current conditions at

Sisseton, Sisseton Municipal Airport (K8D3)

Lat: 45.67°NLon: 96.99°WElev: 1161ft.

50°F

10°C

Humidity 83%
Wind Speed W 7 G 17 mph
Barometer 30.09 in (1019.5 mb)
Dewpoint 45°F (7°C)
Visibility NA
Wind Chill47°F (8°C)
Last update 15 Oct 10:56 am CDT
Extended Forecast for

Webster SD

  • Today

    Today: Cloudy, with a high near 55. Breezy, with a northwest wind 11 to 16 mph increasing to 18 to 23 mph in the afternoon. Winds could gust as high as 36 mph.

    High: 55 °F

    Cloudy and
    Breezy

  • Tonight

    Tonight: Showers likely with a chance of sprinkles before 1am, then a chance of showers between 1am and 4am, then a chance of sprinkles after 4am. Cloudy, with a low around 35. Breezy, with a northwest wind 21 to 24 mph, with gusts as high as 40 mph. Chance of precipitation is 60%. New precipitation amounts between a tenth and quarter of an inch possible.

    Low: 35 °F

    Showers
    Likely and
    Breezy

  • Friday

    Friday: Cloudy through mid morning, then gradual clearing, with a high near 45. Breezy, with a north wind 16 to 21 mph decreasing to 9 to 14 mph in the afternoon. Winds could gust as high as 34 mph.

    High: 45 °F

    Decreasing
    Clouds and
    Breezy then
    Sunny

  • Friday Night

    Friday Night: Widespread frost between 9pm and 1am. Otherwise, clear, with a low around 33. Light and variable wind becoming south southwest 8 to 13 mph in the evening. Winds could gust as high as 24 mph.

    Low: 33 °F

    Frost

  • Saturday

    Saturday: Sunny, with a high near 58. Breezy, with a south southwest wind 16 to 20 mph, with gusts as high as 33 mph.

    High: 58 °F

    Sunny then
    Sunny and
    Breezy

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 45. South southwest wind 13 to 16 mph, with gusts as high as 30 mph.

    Low: 45 °F

    Mostly Clear

  • Sunday

    Sunday: Sunny, with a high near 64. South southwest wind 7 to 11 mph becoming north northwest in the afternoon. Winds could gust as high as 22 mph.

    High: 64 °F

    Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 42. North wind 3 to 5 mph.

    Low: 42 °F

    Mostly Clear

  • Monday

    Monday: Sunny, with a high near 63. East wind 5 to 8 mph.

    High: 63 °F

    Sunny

Detailed Forecast

Today
Cloudy, with a high near 55. Breezy, with a northwest wind 11 to 16 mph increasing to 18 to 23 mph in the afternoon. Winds could gust as high as 36 mph.
Tonight
Showers likely with a chance of sprinkles before 1am, then a chance of showers between 1am and 4am, then a chance of sprinkles after 4am. Cloudy, with a low around 35. Breezy, with a northwest wind 21 to 24 mph, with gusts as high as 40 mph. Chance of precipitation is 60%. New precipitation amounts between a tenth and quarter of an inch possible.
Friday
Cloudy through mid morning, then gradual clearing, with a high near 45. Breezy, with a north wind 16 to 21 mph decreasing to 9 to 14 mph in the afternoon. Winds could gust as high as 34 mph.
Friday Night
Widespread frost between 9pm and 1am. Otherwise, clear, with a low around 33. Light and variable wind becoming south southwest 8 to 13 mph in the evening. Winds could gust as high as 24 mph.
Saturday
Sunny, with a high near 58. Breezy, with a south southwest wind 16 to 20 mph, with gusts as high as 33 mph.
Saturday Night
Mostly clear, with a low around 45. South southwest wind 13 to 16 mph, with gusts as high as 30 mph.
Sunday
Sunny, with a high near 64. South southwest wind 7 to 11 mph becoming north northwest in the afternoon. Winds could gust as high as 22 mph.
Sunday Night
Mostly clear, with a low around 42. North wind 3 to 5 mph.
Monday
Sunny, with a high near 63. East wind 5 to 8 mph.
Monday Night
Mostly clear, with a low around 45.
Tuesday
Sunny, with a high near 66.
Tuesday Night
Partly cloudy, with a low around 51.
Wednesday
A slight chance of showers. Mostly sunny, with a high near 68. Chance of precipitation is 20%.
Basemap Options
Click map to change the forecast location
Loading map...
Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Webster SD
 45.33°N 97.52°W (Elev. 1831 ft)
Last Update:
10:46 am CDT Oct 15, 2026
Forecast Valid:
11am CDT Oct 15, 2026-6pm CDT Oct 21, 2026
 
Forecast Discussion
 
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

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation