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

Harrisonville Lawrence Smith Memorial Airport (KLRY)

Lat: 38.61°NLon: 94.34°WElev: 915ft.

Fair

100°F

38°C

Humidity 24%
Wind Speed S 9 G 16 mph
Barometer 29.96 in
Dewpoint 57°F (14°C)
Visibility 10.00 mi
Heat Index99°F (37°C)
Last update 31 Aug 5:55 pm CDT
Extended Forecast for

Merwin MO

Heat Advisory August 31, 06:03pm until September 4, 08:00pm
Click here for hazard details and duration
Heat Advisory
  •  
    Heat Advisory August 31, 06:03pm until September 4, 08:00pm

    NOW until 8:00pm Fri

    Heat Advisory

  • Tonight

    Low: 73 °F

    Clear

  • Tuesday

    Tuesday: Sunny and hot, with a high near 98. Light south southwest wind becoming southwest 5 to 9 mph in the morning.

    High: 98 °F

    Hot

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 75. South wind 3 to 6 mph.

    Low: 75 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny and hot, with a high near 98. Heat index values as high as 102. South southwest wind 5 to 9 mph.

    High: 98 °F

    Hot

  • Wednesday Night

    Wednesday Night: Clear, with a low around 76. South wind 3 to 6 mph.

    Low: 76 °F

    Clear

  • Thursday

    Thursday: Sunny and hot, with a high near 97.

    High: 97 °F

    Hot

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 75.

    Low: 75 °F

    Mostly Clear

  • Friday

    Friday: Sunny and hot, with a high near 99.

    High: 99 °F

    Hot

Detailed Forecast

Tonight
Clear, with a low around 73. South wind 3 to 7 mph.
Tuesday
Sunny and hot, with a high near 98. Light south southwest wind becoming southwest 5 to 9 mph in the morning.
Tuesday Night
Mostly clear, with a low around 75. South wind 3 to 6 mph.
Wednesday
Sunny and hot, with a high near 98. Heat index values as high as 102. South southwest wind 5 to 9 mph.
Wednesday Night
Clear, with a low around 76. South wind 3 to 6 mph.
Thursday
Sunny and hot, with a high near 97.
Thursday Night
Mostly clear, with a low around 75.
Friday
Sunny and hot, with a high near 99.
Friday Night
Mostly clear, with a low around 74.
Saturday
Sunny and hot, with a high near 98.
Saturday Night
Mostly clear, with a low around 73.
Sunday
Sunny, with a high near 96.
Sunday Night
Mostly clear, with a low around 72.
Labor Day
Sunny, with a high near 94.
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ABOUT THIS FORECAST

 
Point Forecast:
Merwin MO
 38.4°N 94.6°W (Elev. 997 ft)
2:42 pm CDT Aug 31, 2026
6pm CDT Aug 31, 2026-6pm CDT Sep 7, 2026
 
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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