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

Dangerous Heat over the South-Central and Southwest U.S. Through Next Week

Dangerous heat persists across the Desert Southwest through this weekend and across the Southern Plains and Lower Mississippi Valley through at least the middle of next week. Numerous daily record high temperatures are expected through at least Tuesday for much of Texas and Oklahoma as well as portions of Louisiana, New Mexico, and Arizona. Read More >

Current conditions at

Jacksonville Municipal Airport (KIJX)

Lat: 39.77°NLon: 90.24°WElev: 614ft.

Fair

73°F

23°C

Humidity 69%
Wind Speed S 5 mph
Barometer 30.08 in
Dewpoint 62°F (17°C)
Visibility 10.00 mi
Last update 21 Aug 9:15 am CDT
Extended Forecast for

4 Miles ESE Milton IL

  • Today

    Today: Sunny, with a high near 86. Light and variable wind becoming southwest around 6 mph in the morning.

    High: 86 °F

    Sunny

  • Tonight

    Tonight: A 30 percent chance of showers and thunderstorms, mainly before 10pm. Mostly clear, with a low around 67. Light and variable wind.

    Low: 67 °F

    Chance
    T-storms then
    Mostly Clear

  • Saturday

    Saturday: Sunny, with a high near 83. Northwest wind 5 to 10 mph.

    High: 83 °F

    Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 61. North wind 5 to 7 mph becoming calm in the evening.

    Low: 61 °F

    Mostly Clear

  • Sunday

    Sunday: Mostly sunny, with a high near 81. Calm wind becoming north around 5 mph in the afternoon.

    High: 81 °F

    Mostly Sunny

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 61.

    Low: 61 °F

    Partly Cloudy

  • Monday

    Monday: A 20 percent chance of showers and thunderstorms after 1pm. Partly sunny, with a high near 80.

    High: 80 °F

    Partly Sunny
    then Slight
    Chance
    T-storms

  • Monday Night

    Monday Night: Mostly cloudy, with a low around 63.

    Low: 63 °F

    Mostly Cloudy

  • Tuesday

    Tuesday: Mostly sunny, with a high near 83.

    High: 83 °F

    Mostly Sunny

Detailed Forecast

Today
Sunny, with a high near 86. Light and variable wind becoming southwest around 6 mph in the morning.
Tonight
A 30 percent chance of showers and thunderstorms, mainly before 10pm. Mostly clear, with a low around 67. Light and variable wind.
Saturday
Sunny, with a high near 83. Northwest wind 5 to 10 mph.
Saturday Night
Mostly clear, with a low around 61. North wind 5 to 7 mph becoming calm in the evening.
Sunday
Mostly sunny, with a high near 81. Calm wind becoming north around 5 mph in the afternoon.
Sunday Night
Partly cloudy, with a low around 61.
Monday
A 20 percent chance of showers and thunderstorms after 1pm. Partly sunny, with a high near 80.
Monday Night
Mostly cloudy, with a low around 63.
Tuesday
Mostly sunny, with a high near 83.
Tuesday Night
Partly cloudy, with a low around 66.
Wednesday
Partly sunny, with a high near 86.
Wednesday Night
Partly cloudy, with a low around 64.
Thursday
Sunny, with a high near 85.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
4 Miles ESE Milton IL
 39.56°N 90.59°W (Elev. 509 ft)
Last Update:
6:06 am CDT Aug 21, 2026
Forecast Valid:
9am CDT Aug 21, 2026-6pm CDT Aug 27, 2026
 
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