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

Hazardous Weather Conditions

Current conditions at

St. Louis Regional Airport (KALN)

Lat: 38.89°NLon: 90.03°WElev: 518ft.

Overcast

73°F

23°C

Humidity 97%
Wind Speed Calm
Barometer 29.90 in
Dewpoint 72°F (22°C)
Visibility 7.00 mi
Last update 27 Jun 2:35 am CDT
Extended Forecast for

Litchfield IL

Heat Advisory June 28, 12:00pm until July 3, 12:00am
Click here for hazard details and duration
Heat Advisory

  • Overnight

    Overnight: A chance of showers and thunderstorms. Patchy fog after 5am. Otherwise, cloudy, with a low around 70. Calm wind. Chance of precipitation is 30%.

    Low: 70 °F

    Chance
    Showers and
    Patchy Fog

  • Saturday

    Saturday: A slight chance of showers before 10am, then a slight chance of showers and thunderstorms between 10am and noon. Patchy fog before 8am. Otherwise, mostly cloudy, with a high near 82. Calm wind. Chance of precipitation is 20%.

    High: 82 °F

    Slight Chance
    T-storms and
    Patchy Fog
    then Partly
    Sunny

  • Saturday Night

    Saturday Night: A 40 percent chance of showers and thunderstorms, mainly after midnight. Increasing clouds, with a low around 68. Light southeast wind.

    Low: 68 °F

    Chance
    T-storms

  • Sunday

    Sunday: Patchy fog before 8am. Otherwise, mostly cloudy, then gradually becoming sunny, with a high near 91. Heat index values as high as 106. South wind 5 to 10 mph.

    High: 91 °F

    Patchy Fog
    then Mostly
    Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 72. South wind 6 to 9 mph.

    Low: 72 °F

    Mostly Clear

  • Monday

    Monday: Sunny, with a high near 93.

    High: 93 °F

    Sunny

  • Monday Night

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

    Low: 73 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 95.

    High: 95 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Clear, with a low around 74.

    Low: 74 °F

    Clear

Detailed Forecast

Overnight
A chance of showers and thunderstorms. Patchy fog after 5am. Otherwise, cloudy, with a low around 70. Calm wind. Chance of precipitation is 30%.
Saturday
A slight chance of showers before 10am, then a slight chance of showers and thunderstorms between 10am and noon. Patchy fog before 8am. Otherwise, mostly cloudy, with a high near 82. Calm wind. Chance of precipitation is 20%.
Saturday Night
A 40 percent chance of showers and thunderstorms, mainly after midnight. Increasing clouds, with a low around 68. Light southeast wind.
Sunday
Patchy fog before 8am. Otherwise, mostly cloudy, then gradually becoming sunny, with a high near 91. Heat index values as high as 106. South wind 5 to 10 mph.
Sunday Night
Mostly clear, with a low around 72. South wind 6 to 9 mph.
Monday
Sunny, with a high near 93.
Monday Night
Mostly clear, with a low around 73.
Tuesday
Sunny, with a high near 95.
Tuesday Night
Clear, with a low around 74.
Wednesday
Sunny, with a high near 94.
Wednesday Night
Mostly clear, with a low around 74.
Thursday
Sunny, with a high near 93.
Thursday Night
Mostly clear, with a low around 73.
Friday
A 20 percent chance of showers and thunderstorms. Sunny, with a high near 92.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Litchfield IL
 39.18°N 89.66°W (Elev. 702 ft)
Last Update:
2:26 am CDT Jun 27, 2026
Forecast Valid:
2am CDT Jun 27, 2026-6pm CDT Jul 3, 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