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

Heat in the Central U.S.; Heavy Rain Possible for South Texas; Monitoring Erin Tropical Impacts

Hot temperatures are forecast over the Plains and into the lower Mississippi River Valley Friday where Heat Advisories have been issued. Heavy rain from a disturbance in the western Gulf could bring flooding to south Texas. Erin could bring tropical storm conditions and heavy rain to Puerto Rico and the USVI this weekend with dangerous surf and rip currents impacting the western Atlantic Basin. Read More >

Current conditions at

Effingham, Effingham County Memorial Airport (K1H2)

Lat: 39.07°NLon: 88.53°WElev: 587ft.

Fair

72°F

22°C

Humidity 100%
Wind Speed Calm
Barometer 30.07 in
Dewpoint 72°F (22°C)
Visibility 7.00 mi
Last update 15 Aug 2:55 am CDT
Extended Forecast for

Herrick IL

  • Overnight

    Overnight: Mostly clear, with a low around 68. Calm wind.

    Low: 68 °F

    Mostly Clear

  • Friday

    Friday: Sunny, with a high near 92. Heat index values as high as 100. Light and variable wind.

    High: 92 °F

    Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 71. Light south southeast wind.

    Low: 71 °F

    Mostly Clear

  • Saturday

    Saturday: Mostly sunny and hot, with a high near 95. Heat index values as high as 103. South wind around 5 mph becoming calm in the afternoon.

    High: 95 °F

    Hot

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 72. Calm wind.

    Low: 72 °F

    Mostly Clear

  • Sunday

    Sunday: Sunny and hot, with a high near 95. Calm wind.

    High: 95 °F

    Hot

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 72. Calm wind.

    Low: 72 °F

    Mostly Clear

  • Monday

    Monday: Sunny and hot, with a high near 96.

    High: 96 °F

    Hot

  • Monday Night

    Monday Night: Mostly clear, with a low around 73.

    Low: 73 °F

    Mostly Clear

Detailed Forecast

Overnight
Mostly clear, with a low around 68. Calm wind.
Friday
Sunny, with a high near 92. Heat index values as high as 100. Light and variable wind.
Friday Night
Mostly clear, with a low around 71. Light south southeast wind.
Saturday
Mostly sunny and hot, with a high near 95. Heat index values as high as 103. South wind around 5 mph becoming calm in the afternoon.
Saturday Night
Mostly clear, with a low around 72. Calm wind.
Sunday
Sunny and hot, with a high near 95. Calm wind.
Sunday Night
Mostly clear, with a low around 72. Calm wind.
Monday
Sunny and hot, with a high near 96.
Monday Night
Mostly clear, with a low around 73.
Tuesday
Sunny and hot, with a high near 96.
Tuesday Night
A chance of showers and thunderstorms. Partly cloudy, with a low around 71.
Wednesday
A chance of showers and thunderstorms. Mostly sunny, with a high near 88.
Wednesday Night
Partly cloudy, with a low around 66.
Thursday
Mostly sunny, with a high near 86.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Herrick IL
 39.22°N 88.98°W (Elev. 587 ft)
Last Update:
2:26 am CDT Aug 15, 2025
Forecast Valid:
3am CDT Aug 15, 2025-6pm CDT Aug 21, 2025
 
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