Thunderstorms and Heavy Rainfall in the Plains; Hazardous Heat in the South and Southeast

Severe thunderstorms will be possible across the northern/central Plains through Tuesday afternoon and from the central Plains to the Mid-Mississippi Valley Tuesday evening through Wednesday morning. Storms may produce large hail and damaging wind gusts, and heavy rainfall may lead to scattered instances of flash flooding. Meanwhile, hazardous heat persists across the South and Southeast. Read More >

Current conditions at

St. Louis, Spirit Of St. Louis Airport (KSUS)

Lat: 38.66°NLon: 90.66°WElev: 463ft.

Mostly Cloudy

82°F

28°C

Humidity 56%
Wind Speed N 5 mph
Barometer 30.01 in (1015.5 mb)
Dewpoint 65°F (18°C)
Visibility 10.00 mi
Heat Index84°F (29°C)
Last update 17 Aug 6:54 pm CDT
Extended Forecast for

2 Miles NNE Hillsboro MO

  • Tonight

    Tonight: Mostly cloudy, then gradually becoming mostly clear, with a low around 62. North wind around 5 mph becoming calm  in the evening.

    Low: 62 °F

    Decreasing
    Clouds

  • Tuesday

    Tuesday: Patchy fog before 7am.  Otherwise, sunny, with a high near 88. Light south wind.

    High: 88 °F

    Patchy Fog
    then Sunny

  • Tuesday Night

    Tuesday Night: A 40 percent chance of showers and thunderstorms, mainly after 3am.  Increasing clouds, with a low around 68. Light and variable wind becoming southeast around 6 mph.

    Low: 68 °F

    Mostly Clear
    then Chance
    T-storms

  • Wednesday

    Wednesday: A 50 percent chance of showers and thunderstorms, mainly before 1pm.  Mostly cloudy, with a high near 85. Southwest wind around 6 mph becoming calm  in the morning.

    High: 85 °F

    Chance
    T-storms

  • Wednesday Night

    Wednesday Night: Showers and thunderstorms likely.  Mostly cloudy, with a low around 66. Calm wind.  Chance of precipitation is 70%.

    Low: 66 °F

    T-storms
    Likely

  • Thursday

    Thursday: A 30 percent chance of showers and thunderstorms before 1pm.  Partly sunny, with a high near 81.

    High: 81 °F

    Chance
    T-storms

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 63.

    Low: 63 °F

    Mostly Clear

  • Friday

    Friday: Sunny, with a high near 85.

    High: 85 °F

    Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 64.

    Low: 64 °F

    Mostly Clear

Detailed Forecast

Tonight
Mostly cloudy, then gradually becoming mostly clear, with a low around 62. North wind around 5 mph becoming calm in the evening.
Tuesday
Patchy fog before 7am. Otherwise, sunny, with a high near 88. Light south wind.
Tuesday Night
A 40 percent chance of showers and thunderstorms, mainly after 3am. Increasing clouds, with a low around 68. Light and variable wind becoming southeast around 6 mph.
Wednesday
A 50 percent chance of showers and thunderstorms, mainly before 1pm. Mostly cloudy, with a high near 85. Southwest wind around 6 mph becoming calm in the morning.
Wednesday Night
Showers and thunderstorms likely. Mostly cloudy, with a low around 66. Calm wind. Chance of precipitation is 70%.
Thursday
A 30 percent chance of showers and thunderstorms before 1pm. Partly sunny, with a high near 81.
Thursday Night
Mostly clear, with a low around 63.
Friday
Sunny, with a high near 85.
Friday Night
Mostly clear, with a low around 64.
Saturday
A 20 percent chance of showers and thunderstorms after 1pm. Sunny, with a high near 85.
Saturday Night
Mostly clear, with a low around 63.
Sunday
Sunny, with a high near 83.
Sunday Night
A 20 percent chance of showers. Partly cloudy, with a low around 61.
Monday
A 20 percent chance of showers. Partly sunny, with a high near 84.
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ABOUT THIS FORECAST

 
Point Forecast:
2 Miles NNE Hillsboro MO
 38.27°N 90.56°W (Elev. 715 ft)
6:11 pm CDT Aug 17, 2026
7pm CDT Aug 17, 2026-6pm CDT Aug 24, 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