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

Severe Storms and Heavy Rain in the Midwest; Heat in Several Locations

Strong to severe thunderstorms with damaging winds, heavy rain, and flash flooding are expected across the central Plains into the Mid Mississippi Valley on Monday, especially Kansas into Missouri. Meanwhile, heat will consume several locations from the Northeast (Boston and New York City), in the Mid to Lower Mississippi Valley (Memphis and St. Louis) and persisting around the Phoenix metro area. Read More >

Hazardous Weather Conditions

Current conditions at

St. Louis Regional Airport (KALN)

Lat: 38.89°NLon: 90.03°WElev: 518ft.

Mostly Cloudy

79°F

26°C

Humidity 100%
Wind Speed SE 7 mph
Barometer 29.99 in
Dewpoint 79°F (26°C)
Visibility 10.00 mi
Heat Index84°F (29°C)
Last update 9 Aug 8:52 pm CDT
Extended Forecast for

Gillespie IL

  • Tonight

    Tonight: A 30 percent chance of showers and thunderstorms, mainly after 3am. Increasing clouds, with a low around 72. South wind around 8 mph.

    Isolated
    T-storms then
    Chance
    Showers

    Low: 72 °F

  • Monday

    Monday: A 30 percent chance of showers and thunderstorms, mainly after 5pm. Mostly cloudy, with a high near 91. Heat index values as high as 102. Southwest wind 8 to 10 mph.

    Chance
    Showers then
    Chance
    T-storms

    High: 91 °F

  • Monday
    Night

    Monday Night: Showers and thunderstorms likely, mainly between 9pm and 1am. Mostly cloudy, with a low around 69. Southwest wind 5 to 7 mph becoming northwest after midnight. Chance of precipitation is 70%.

    T-storms
    Likely

    Low: 69 °F

  • Tuesday

    Tuesday: Showers and thunderstorms likely. Mostly cloudy, with a high near 84. Calm wind. Chance of precipitation is 60%.

    T-storms
    Likely

    High: 84 °F

  • Tuesday
    Night

    Tuesday Night: A 40 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 67. Calm wind.

    Chance
    T-storms

    Low: 67 °F

  • Wednesday

    Wednesday: A 40 percent chance of showers and thunderstorms. Partly sunny, with a high near 83.

    Chance
    T-storms

    High: 83 °F

  • Wednesday
    Night

    Wednesday Night: A 20 percent chance of showers and thunderstorms after 1am. Partly cloudy, with a low around 66.

    Partly Cloudy
    then Slight
    Chance
    T-storms

    Low: 66 °F

  • Thursday

    Thursday: A 30 percent chance of showers and thunderstorms. Mostly sunny, with a high near 84.

    Chance
    T-storms

    High: 84 °F

  • Thursday
    Night

    Thursday Night: A 20 percent chance of showers and thunderstorms after 1am. Partly cloudy, with a low around 66.

    Partly Cloudy
    then Slight
    Chance
    T-storms

    Low: 66 °F

Detailed Forecast

Tonight
A 30 percent chance of showers and thunderstorms, mainly after 3am. Increasing clouds, with a low around 72. South wind around 8 mph.
Monday
A 30 percent chance of showers and thunderstorms, mainly after 5pm. Mostly cloudy, with a high near 91. Heat index values as high as 102. Southwest wind 8 to 10 mph.
Monday Night
Showers and thunderstorms likely, mainly between 9pm and 1am. Mostly cloudy, with a low around 69. Southwest wind 5 to 7 mph becoming northwest after midnight. Chance of precipitation is 70%.
Tuesday
Showers and thunderstorms likely. Mostly cloudy, with a high near 84. Calm wind. Chance of precipitation is 60%.
Tuesday Night
A 40 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 67. Calm wind.
Wednesday
A 40 percent chance of showers and thunderstorms. Partly sunny, with a high near 83.
Wednesday Night
A 20 percent chance of showers and thunderstorms after 1am. Partly cloudy, with a low around 66.
Thursday
A 30 percent chance of showers and thunderstorms. Mostly sunny, with a high near 84.
Thursday Night
A 20 percent chance of showers and thunderstorms after 1am. Partly cloudy, with a low around 66.
Friday
A 30 percent chance of showers and thunderstorms. Partly sunny, with a high near 84.
Friday Night
A 20 percent chance of showers and thunderstorms. Partly cloudy, with a low around 67.
Saturday
A 30 percent chance of showers and thunderstorms. Partly sunny, with a high near 85.
Saturday Night
A 20 percent chance of showers and thunderstorms. Partly cloudy, with a low around 67.
Sunday
A 30 percent chance of showers. Mostly sunny, with a high near 84.
Click Map For Forecast
Disclaimer
Map Legend
Point Forecast:
Gillespie IL
 39.12°N 89.81°W (Elev. 653 ft)
Last Update:
8:58 pm CDT Aug 9, 2020
Forecast Valid:
9pm CDT Aug 9, 2020-6pm CDT Aug 16, 2020
 
Forecast Discussion
 
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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

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation