Thunderstorms and Heavy Rain in the Mid-South; Heat Continues in the Southeast and Southwest

Severe thunderstorms and heavy rain are expected across portions of the mid-Mississippi Valley into the Ohio Valley and portions of Arizona. Dangerous heat persists in the South and Southeast while building into the Southwest. Overnight lows will be so warm that, when combined with oppressive dew points, little-to-no relief from the scorching daytime highs will be available. Read More >

Current conditions at

Jacksonville Municipal Airport (KIJX)

Lat: 39.77°NLon: 90.24°WElev: 614ft.

Fair

78°F

26°C

Humidity 88%
Wind Speed Calm
Barometer 29.93 in
Dewpoint 74°F (23°C)
Visibility 10.00 mi
Heat Index80°F (27°C)
Last update 19 Aug 10:15 am CDT
Extended Forecast for

Patterson IL

  • Today

    Today: Scattered showers and thunderstorms, mainly after 2pm.  Mostly cloudy, with a high near 80. Light southeast wind.  Chance of precipitation is 40%.

    High: 80 °F

    Scattered
    T-storms

  • Tonight

    Tonight: Scattered showers and thunderstorms before 10pm, then isolated showers between 10pm and midnight.  Mostly cloudy, with a low around 64. Calm wind.  Chance of precipitation is 30%.

    Low: 64 °F

    Scattered
    Showers then
    Partly Cloudy

  • Thursday

    Thursday: Mostly sunny, with a high near 82. Northeast wind 3 to 5 mph.

    High: 82 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 62. Calm wind.

    Low: 62 °F

    Mostly Clear

  • Friday

    Friday: Sunny, with a high near 85. Calm wind becoming west around 5 mph in the afternoon.

    High: 85 °F

    Sunny

  • Friday Night

    Friday Night: A 20 percent chance of showers and thunderstorms after 1am.  Mostly clear, with a low around 64.

    Low: 64 °F

    Mostly Clear
    then Slight
    Chance
    T-storms

  • Saturday

    Saturday: A 20 percent chance of showers and thunderstorms before 1pm.  Mostly sunny, with a high near 84.

    High: 84 °F

    Slight Chance
    T-storms

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 62.

    Low: 62 °F

    Mostly Clear

  • Sunday

    Sunday: Mostly sunny, with a high near 81.

    High: 81 °F

    Mostly Sunny

Detailed Forecast

Today
Scattered showers and thunderstorms, mainly after 2pm. Mostly cloudy, with a high near 80. Light southeast wind. Chance of precipitation is 40%.
Tonight
Scattered showers and thunderstorms before 10pm, then isolated showers between 10pm and midnight. Mostly cloudy, with a low around 64. Calm wind. Chance of precipitation is 30%.
Thursday
Mostly sunny, with a high near 82. Northeast wind 3 to 5 mph.
Thursday Night
Mostly clear, with a low around 62. Calm wind.
Friday
Sunny, with a high near 85. Calm wind becoming west around 5 mph in the afternoon.
Friday Night
A 20 percent chance of showers and thunderstorms after 1am. Mostly clear, with a low around 64.
Saturday
A 20 percent chance of showers and thunderstorms before 1pm. Mostly sunny, with a high near 84.
Saturday Night
Mostly clear, with a low around 62.
Sunday
Mostly sunny, with a high near 81.
Sunday Night
A 20 percent chance of showers after 1am. Mostly cloudy, with a low around 62.
Monday
Partly sunny, with a high near 82.
Monday Night
Partly cloudy, with a low around 64.
Tuesday
Mostly sunny, with a high near 85.
Basemap Options
Click map to change the forecast location
Loading map...

ABOUT THIS FORECAST

 
Point Forecast:
Patterson IL
 39.49°N 90.48°W (Elev. 659 ft)
8:11 am CDT Aug 19, 2026
10am CDT Aug 19, 2026-6pm CDT Aug 25, 2026
 
Get as KML Get as XML

Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database