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

St. Louis Regional Airport (KALN)

Lat: 38.89°NLon: 90.03°WElev: 518ft.

Fair

63°F

17°C

Humidity 39%
Wind Speed S 9 mph
Barometer 29.94 in
Dewpoint 37°F (3°C)
Visibility 10.00 mi
Last update 7 Jan 12:50 pm CST
Extended Forecast for

Sawyerville IL

  • This Afternoon

    This Afternoon: Mostly sunny, with a high near 59. South wind around 9 mph.

    High: 59 °F

    Mostly Sunny

  • Tonight

    Tonight: Increasing clouds, with a low around 43. Southeast wind 7 to 10 mph, with gusts as high as 21 mph.

    Low: 43 °F

    Increasing
    Clouds

  • Thursday

    Thursday: Rain likely before noon, then showers, mainly after 4pm. High near 63. Breezy, with a south wind 11 to 21 mph, with gusts as high as 37 mph. Chance of precipitation is 80%.

    High: 63 °F

    Showers and
    Breezy

  • Thursday Night

    Thursday Night: Showers and possibly a thunderstorm before midnight, then a chance of showers. Low around 49. Breezy, with a south wind 11 to 21 mph becoming west after midnight. Winds could gust as high as 31 mph. Chance of precipitation is 80%.

    Low: 49 °F

    Showers and
    Breezy then
    Chance
    Showers

  • Friday

    Friday: Partly sunny, with a high near 56. West wind 7 to 10 mph becoming north in the afternoon.

    High: 56 °F

    Partly Sunny

  • Friday Night

    Friday Night: A 40 percent chance of rain, mainly after midnight. Mostly cloudy, with a low around 37.

    Low: 37 °F

    Chance Rain

  • Saturday

    Saturday: A 20 percent chance of rain before noon. Partly sunny, with a high near 43.

    High: 43 °F

    Slight Chance
    Rain then
    Mostly Sunny

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 22.

    Low: 22 °F

    Partly Cloudy

  • Sunday

    Sunday: Mostly sunny, with a high near 32.

    High: 32 °F

    Mostly Sunny

Detailed Forecast

This Afternoon
Mostly sunny, with a high near 59. South wind around 9 mph.
Tonight
Increasing clouds, with a low around 43. Southeast wind 7 to 10 mph, with gusts as high as 21 mph.
Thursday
Rain likely before noon, then showers, mainly after 4pm. High near 63. Breezy, with a south wind 11 to 21 mph, with gusts as high as 37 mph. Chance of precipitation is 80%.
Thursday Night
Showers and possibly a thunderstorm before midnight, then a chance of showers. Low around 49. Breezy, with a south wind 11 to 21 mph becoming west after midnight. Winds could gust as high as 31 mph. Chance of precipitation is 80%.
Friday
Partly sunny, with a high near 56. West wind 7 to 10 mph becoming north in the afternoon.
Friday Night
A 40 percent chance of rain, mainly after midnight. Mostly cloudy, with a low around 37.
Saturday
A 20 percent chance of rain before noon. Partly sunny, with a high near 43.
Saturday Night
Partly cloudy, with a low around 22.
Sunday
Mostly sunny, with a high near 32.
Sunday Night
Mostly clear, with a low around 21.
Monday
Sunny, with a high near 44.
Monday Night
Partly cloudy, with a low around 30.
Tuesday
Mostly sunny, with a high near 49.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Sawyerville IL
 39.07°N 89.81°W (Elev. 600 ft)
Last Update:
1:11 pm CST Jan 7, 2026
Forecast Valid:
1pm CST Jan 7, 2026-6pm CST Jan 13, 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