Heavy Rainfall and Severe Thunderstorm Threats; Heat Risk Expands; Monitoring the Tropics

Flash flooding risks continue for portions of the Four Corners and Great Basin through today. Severe thunderstorms are outlooked from the eastern Great Lakes, southern New England into the mid-Atlantic through Tuesday. Heat risk increases and expands across the center of the nation and across the Ohio Valley and mid-Atlantic this week. Continue to closely monitor tropical development in the Gulf. Read More >

Current conditions at

ONIDAMUNC (K98D)

Lat: 44.7°NLon: 100.1°WElev: 1874ft.

Fair

84°F

29°C

Humidity 29%
Wind Speed W 5 mph
Barometer 29.93 in
Dewpoint 48°F (9°C)
Visibility 10.00 mi
Heat Index82°F (28°C)
Last update 31 Aug 4:36 pm CDT
Extended Forecast for

Highmore SD

  • This Afternoon

    This Afternoon: Sunny, with a high near 83. West southwest wind around 7 mph.

    High: 83 °F

    Sunny

  • Tonight

    Tonight: Partly cloudy, with a low around 58. West northwest wind 5 to 7 mph becoming southeast after midnight.

    Low: 58 °F

    Partly Cloudy

  • Tuesday

    Tuesday: A chance of showers, with thunderstorms also possible after 4pm.  Increasing clouds, with a high near 79. East wind 6 to 10 mph.  Chance of precipitation is 50%.

    High: 79 °F

    Partly Sunny
    then Chance
    Showers

  • Tuesday Night

    Tuesday Night: Showers likely and possibly a thunderstorm before 8pm, then a chance of showers and thunderstorms between 8pm and 11pm.  Mostly cloudy, with a low around 57. Northeast wind 8 to 10 mph.  Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    Low: 57 °F

    Showers
    Likely then
    Mostly Cloudy

  • Wednesday

    Wednesday: Mostly sunny, with a high near 84. East southeast wind 9 to 14 mph, with gusts as high as 22 mph.

    High: 84 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 64. East southeast wind 11 to 14 mph, with gusts as high as 22 mph.

    Low: 64 °F

    Partly Cloudy

  • Thursday

    Thursday: Sunny, with a high near 89. South southwest wind around 11 mph, with gusts as high as 20 mph.

    High: 89 °F

    Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 66. East southeast wind 7 to 9 mph.

    Low: 66 °F

    Mostly Clear

  • Friday

    Friday: Sunny and hot, with a high near 90. Southeast wind 9 to 16 mph, with gusts as high as 24 mph.

    High: 90 °F

    Hot

Detailed Forecast

This Afternoon
Sunny, with a high near 83. West southwest wind around 7 mph.
Tonight
Partly cloudy, with a low around 58. West northwest wind 5 to 7 mph becoming southeast after midnight.
Tuesday
A chance of showers, with thunderstorms also possible after 4pm. Increasing clouds, with a high near 79. East wind 6 to 10 mph. Chance of precipitation is 50%.
Tuesday Night
Showers likely and possibly a thunderstorm before 8pm, then a chance of showers and thunderstorms between 8pm and 11pm. Mostly cloudy, with a low around 57. Northeast wind 8 to 10 mph. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Wednesday
Mostly sunny, with a high near 84. East southeast wind 9 to 14 mph, with gusts as high as 22 mph.
Wednesday Night
Partly cloudy, with a low around 64. East southeast wind 11 to 14 mph, with gusts as high as 22 mph.
Thursday
Sunny, with a high near 89. South southwest wind around 11 mph, with gusts as high as 20 mph.
Thursday Night
Mostly clear, with a low around 66. East southeast wind 7 to 9 mph.
Friday
Sunny and hot, with a high near 90. Southeast wind 9 to 16 mph, with gusts as high as 24 mph.
Friday Night
Mostly clear, with a low around 70.
Saturday
Mostly sunny, with a high near 88.
Saturday Night
A slight chance of showers and thunderstorms. Partly cloudy, with a low around 68. Chance of precipitation is 20%.
Sunday
A slight chance of showers. Mostly sunny, with a high near 86. Chance of precipitation is 20%.
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ABOUT THIS FORECAST

 
Point Forecast:
Highmore SD
 44.52°N 99.45°W (Elev. 1886 ft)
4:06 pm CDT Aug 31, 2026
4pm CDT Aug 31, 2026-6pm CDT Sep 6, 2026
 
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Additional Resources

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Hourly Weather Forecast

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