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

Quincy Regional Airport-Baldwin Field (KUIN)

Lat: 39.94°NLon: 91.2°WElev: 759ft.

Fair

48°F

9°C

Humidity 44%
Wind Speed SE 10 mph
Barometer 30.33 in (1027.3 mb)
Dewpoint 27°F (-3°C)
Visibility 10.00 mi
Wind Chill44°F (7°C)
Last update 20 Apr 8:54 am CDT
Extended Forecast for

Clayton IL

  • Today

    Today: Sunny, with a high near 67. Light southeast wind increasing to 5 to 10 mph in the morning.

    High: 67 °F

    Sunny

  • Tonight

    Tonight: Mostly clear, with a low around 53. South wind 9 to 13 mph, with gusts as high as 24 mph.

    Low: 53 °F

    Mostly Clear

  • Tuesday

    Tuesday: Mostly sunny, with a high near 79. Southwest wind 13 to 18 mph, with gusts as high as 28 mph.

    High: 79 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: A 20 percent chance of showers and thunderstorms before 1am. Partly cloudy, with a low around 57. Southwest wind 11 to 14 mph, with gusts as high as 23 mph.

    Low: 57 °F

    Slight Chance
    T-storms

  • Wednesday

    Wednesday: Mostly sunny, with a high near 77. Southwest wind around 10 mph.

    High: 77 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 59.

    Low: 59 °F

    Partly Cloudy

  • Thursday

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

    High: 80 °F

    Mostly Sunny
    then Slight
    Chance
    T-storms and
    Breezy

  • Thursday Night

    Thursday Night: Showers and possibly a thunderstorm. Low around 59. Breezy. Chance of precipitation is 90%.

    Low: 59 °F

    Showers
    Likely and
    Breezy then
    Showers

  • Friday

    Friday: Showers likely, with thunderstorms also possible after 1pm. Mostly cloudy, with a high near 69. Chance of precipitation is 60%.

    High: 69 °F

    Showers
    Likely

Detailed Forecast

Today
Sunny, with a high near 67. Light southeast wind increasing to 5 to 10 mph in the morning.
Tonight
Mostly clear, with a low around 53. South wind 9 to 13 mph, with gusts as high as 24 mph.
Tuesday
Mostly sunny, with a high near 79. Southwest wind 13 to 18 mph, with gusts as high as 28 mph.
Tuesday Night
A 20 percent chance of showers and thunderstorms before 1am. Partly cloudy, with a low around 57. Southwest wind 11 to 14 mph, with gusts as high as 23 mph.
Wednesday
Mostly sunny, with a high near 77. Southwest wind around 10 mph.
Wednesday Night
Partly cloudy, with a low around 59.
Thursday
A 20 percent chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 80. Breezy.
Thursday Night
Showers and possibly a thunderstorm. Low around 59. Breezy. Chance of precipitation is 90%.
Friday
Showers likely, with thunderstorms also possible after 1pm. Mostly cloudy, with a high near 69. Chance of precipitation is 60%.
Friday Night
A 40 percent chance of showers, mainly before 1am. Mostly cloudy, with a low around 47.
Saturday
A 20 percent chance of showers. Mostly sunny, with a high near 68.
Saturday Night
A 30 percent chance of showers. Partly cloudy, with a low around 47.
Sunday
A 30 percent chance of showers. Mostly sunny, with a high near 68.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Clayton IL
 40.03°N 90.94°W (Elev. 728 ft)
Last Update:
8:51 am CDT Apr 20, 2026
Forecast Valid:
9am CDT Apr 20, 2026-6pm CDT Apr 26, 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