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

Hazardous Weather Conditions

Current conditions at

WAGNERMUNC (KAGZ)

Lat: 43.06°NLon: 98.3°WElev: 1475ft.

Mostly Cloudy

77°F

25°C

Humidity 83%
Wind Speed SE 10 mph
Barometer 29.91 in
Dewpoint 72°F (22°C)
Visibility 10.00 mi
Heat Index78°F (26°C)
Last update 25 Jul 11:15 pm CDT
Extended Forecast for

Harrison SD

Extreme Heat Warning July 25, 11:30pm until July 26, 08:00pm
Click here for hazard details and duration
Extreme Heat Warning
  •  
    Extreme Heat Warning July 25, 11:30pm until July 26, 08:00pm

    NOW until 8:00pm Sun

    Extreme Heat Warning

  • Tonight

    Low: 74 °F

    Severe
    Thunderstorms

  • Sunday

    Sunday: Cloudy through mid morning, then gradual clearing and hot, with a high near 100. Heat index values as high as 109. South wind 10 to 15 mph, with gusts as high as 25 mph.

    High: 100 °F

    Hot

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 73. South southeast wind 5 to 10 mph becoming north northwest after midnight.

    Low: 73 °F

    Mostly Clear

  • Monday

    Monday: Sunny and hot, with a high near 95. North wind around 10 mph becoming east northeast in the afternoon.

    High: 95 °F

    Hot

  • Monday Night

    Monday Night: A 20 percent chance of showers and thunderstorms after 1am. Increasing clouds, with a low around 71. East wind around 5 mph becoming north after midnight.

    Low: 71 °F

    Partly Cloudy
    then Slight
    Chance
    T-storms

  • Tuesday

    Tuesday: Mostly sunny, with a high near 93. East southeast wind around 10 mph, with gusts as high as 20 mph.

    High: 93 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 69.

    Low: 69 °F

    Mostly Clear

  • Wednesday

    Wednesday: Mostly sunny, with a high near 94.

    High: 94 °F

    Mostly Sunny

Detailed Forecast

Tonight
A chance of showers and thunderstorms before 4am, then a slight chance of showers. Some of the storms could be severe. Mostly cloudy, with a low around 74. South southeast wind around 10 mph. Chance of precipitation is 30%.
Sunday
Cloudy through mid morning, then gradual clearing and hot, with a high near 100. Heat index values as high as 109. South wind 10 to 15 mph, with gusts as high as 25 mph.
Sunday Night
Mostly clear, with a low around 73. South southeast wind 5 to 10 mph becoming north northwest after midnight.
Monday
Sunny and hot, with a high near 95. North wind around 10 mph becoming east northeast in the afternoon.
Monday Night
A 20 percent chance of showers and thunderstorms after 1am. Increasing clouds, with a low around 71. East wind around 5 mph becoming north after midnight.
Tuesday
Mostly sunny, with a high near 93. East southeast wind around 10 mph, with gusts as high as 20 mph.
Tuesday Night
Mostly clear, with a low around 69.
Wednesday
Mostly sunny, with a high near 94.
Wednesday Night
A 30 percent chance of showers and thunderstorms after 1am. Partly cloudy, with a low around 71.
Thursday
A 40 percent chance of showers and thunderstorms after 1pm. Partly sunny, with a high near 92.
Thursday Night
A 40 percent chance of showers. Partly cloudy, with a low around 67.
Friday
Mostly sunny, with a high near 89.
Friday Night
Mostly clear, with a low around 66.
Saturday
Mostly sunny, with a high near 90.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Harrison SD
 43.42°N 98.54°W (Elev. 1588 ft)
Last Update:
11:18 pm CDT Jul 25, 2026
Forecast Valid:
11pm CDT Jul 25, 2026-6pm CDT Aug 1, 2026
 
Forecast Discussion
 
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Additional Resources

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High Temperature

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Chance of Precipitation