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

Heat Builds in the West; Extremely Critical Fire Weather in the Northwest

A heat wave over the Southwest will intensify this week, peaking and expanding into the Intermountain West and northern High Plains this weekend. Critical to extremely critical fire weather conditions are forecast from the Northwest and the northern Great Basin this weekend. Particularly Dangerous Situation Red Flag Warnings have been issued. Read More >

Current conditions at

St. Louis Regional Airport (KALN)

Lat: 38.89°NLon: 90.03°WElev: 518ft.

Light Rain

70°F

21°C

Humidity 88%
Wind Speed SW 8 mph
Barometer 29.68 in
Dewpoint 66°F (19°C)
Visibility 7.00 mi
Last update 1 Aug 10:50 am CDT
Extended Forecast for

Litchfield IL

  • Today

    Today: Drizzle likely, mainly between 3pm and 4pm, then showers likely and possibly a thunderstorm after 4pm. Patchy fog between 1pm and 5pm. Otherwise, cloudy, with a high near 73. Northwest wind 3 to 7 mph. Chance of precipitation is 70%.

    High: 73 °F

    Showers
    Likely and
    Patchy Fog

  • Tonight

    Tonight: Showers and possibly a thunderstorm before 11pm, then scattered showers. Patchy fog between 7pm and 1am. Low around 64. North wind around 15 mph. Chance of precipitation is 80%.

    Low: 64 °F

    Showers and
    Patchy Fog
    then
    Scattered
    Showers and
    Patchy Fog

  • Sunday

    Sunday: Isolated showers before 1pm, then isolated showers and thunderstorms between 1pm and 4pm, then isolated showers after 4pm. Cloudy, then gradually becoming mostly sunny, with a high near 78. North wind around 15 mph, with gusts as high as 23 mph. Chance of precipitation is 20%.

    High: 78 °F

    Isolated
    Showers then
    Isolated
    T-storms

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 62. North wind 5 to 10 mph becoming light after midnight.

    Low: 62 °F

    Mostly Clear

  • Monday

    Monday: Sunny, with a high near 81. North wind 3 to 6 mph.

    High: 81 °F

    Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 61.

    Low: 61 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 83.

    High: 83 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 63.

    Low: 63 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny, with a high near 84.

    High: 84 °F

    Sunny

Detailed Forecast

Today
Drizzle likely, mainly between 3pm and 4pm, then showers likely and possibly a thunderstorm after 4pm. Patchy fog between 1pm and 5pm. Otherwise, cloudy, with a high near 73. Northwest wind 3 to 7 mph. Chance of precipitation is 70%.
Tonight
Showers and possibly a thunderstorm before 11pm, then scattered showers. Patchy fog between 7pm and 1am. Low around 64. North wind around 15 mph. Chance of precipitation is 80%.
Sunday
Isolated showers before 1pm, then isolated showers and thunderstorms between 1pm and 4pm, then isolated showers after 4pm. Cloudy, then gradually becoming mostly sunny, with a high near 78. North wind around 15 mph, with gusts as high as 23 mph. Chance of precipitation is 20%.
Sunday Night
Mostly clear, with a low around 62. North wind 5 to 10 mph becoming light after midnight.
Monday
Sunny, with a high near 81. North wind 3 to 6 mph.
Monday Night
Mostly clear, with a low around 61.
Tuesday
Sunny, with a high near 83.
Tuesday Night
Mostly clear, with a low around 63.
Wednesday
Sunny, with a high near 84.
Wednesday Night
A 40 percent chance of showers and thunderstorms after 1am. Partly cloudy, with a low around 67.
Thursday
A 40 percent chance of showers and thunderstorms. Partly sunny, with a high near 84.
Thursday Night
A 40 percent chance of showers and thunderstorms. Partly cloudy, with a low around 68.
Friday
A 30 percent chance of showers and thunderstorms. Mostly sunny, with a high near 87.
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ABOUT THIS FORECAST

 
Point Forecast:
Litchfield IL
 39.18°N 89.64°W (Elev. 699 ft)
Last Update:
9:06 am CDT Aug 1, 2026
Forecast Valid:
11am CDT Aug 1, 2026-6pm CDT Aug 7, 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