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

78°F

26°C

Humidity 50%
Wind Speed W 7 mph
Barometer 30.04 in (1016.5 mb)
Dewpoint 58°F (14°C)
Visibility 10.00 mi
Heat Index79°F (26°C)
Last update 19 Jun 5:54 pm CDT
Extended Forecast for

Clayton IL

  • Tonight

    Tonight: Scattered showers, mainly between 9pm and 3am. Mostly cloudy, with a low around 62. Light and variable wind becoming west around 5 mph. Chance of precipitation is 30%.

    Low: 62 °F

    Scattered
    Showers

  • Saturday

    Saturday: Mostly cloudy, then gradually becoming sunny, with a high near 82. Light northwest wind.

    High: 82 °F

    Decreasing
    Clouds

  • Saturday Night

    Saturday Night: A chance of showers and thunderstorms before 4am, then showers likely and possibly a thunderstorm between 4am and 5am, then showers and thunderstorms likely after 5am. Mostly cloudy, with a low around 63. Light and variable wind becoming east 5 to 8 mph in the evening. Chance of precipitation is 60%.

    Low: 63 °F

    Partly Cloudy
    then T-storms
    Likely

  • Sunday

    Sunday: Showers and possibly a thunderstorm before 7am, then showers and thunderstorms after 7am. Some of the storms could produce heavy rainfall. High near 75. East wind 10 to 16 mph becoming south in the afternoon. Winds could gust as high as 25 mph. Chance of precipitation is 100%.

    High: 75 °F

    Heavy Rain

  • Sunday Night

    Sunday Night: Showers and thunderstorms likely, mainly before 1am. Mostly cloudy, with a low around 59. North wind 10 to 14 mph, with gusts as high as 22 mph. Chance of precipitation is 60%.

    Low: 59 °F

    T-storms
    Likely

  • Monday

    Monday: Partly sunny, with a high near 74.

    High: 74 °F

    Partly Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 57.

    Low: 57 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Mostly sunny, with a high near 77.

    High: 77 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: A 20 percent chance of showers after 1am. Partly cloudy, with a low around 60.

    Low: 60 °F

    Partly Cloudy
    then Slight
    Chance
    Showers

Detailed Forecast

Tonight
Scattered showers, mainly between 9pm and 3am. Mostly cloudy, with a low around 62. Light and variable wind becoming west around 5 mph. Chance of precipitation is 30%.
Saturday
Mostly cloudy, then gradually becoming sunny, with a high near 82. Light northwest wind.
Saturday Night
A chance of showers and thunderstorms before 4am, then showers likely and possibly a thunderstorm between 4am and 5am, then showers and thunderstorms likely after 5am. Mostly cloudy, with a low around 63. Light and variable wind becoming east 5 to 8 mph in the evening. Chance of precipitation is 60%.
Sunday
Showers and possibly a thunderstorm before 7am, then showers and thunderstorms after 7am. Some of the storms could produce heavy rainfall. High near 75. East wind 10 to 16 mph becoming south in the afternoon. Winds could gust as high as 25 mph. Chance of precipitation is 100%.
Sunday Night
Showers and thunderstorms likely, mainly before 1am. Mostly cloudy, with a low around 59. North wind 10 to 14 mph, with gusts as high as 22 mph. Chance of precipitation is 60%.
Monday
Partly sunny, with a high near 74.
Monday Night
Partly cloudy, with a low around 57.
Tuesday
Mostly sunny, with a high near 77.
Tuesday Night
A 20 percent chance of showers after 1am. Partly cloudy, with a low around 60.
Wednesday
Sunny, with a high near 79.
Wednesday Night
Mostly clear, with a low around 58.
Thursday
Mostly sunny, with a high near 78.
Thursday Night
A 20 percent chance of showers and thunderstorms. Partly cloudy, with a low around 60.
Friday
A 30 percent chance of showers and thunderstorms. Mostly sunny, with a high near 80.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Clayton IL
 40.03°N 90.97°W (Elev. 722 ft)
Last Update:
5:06 pm CDT Jun 19, 2026
Forecast Valid:
5pm CDT Jun 19, 2026-6pm CDT Jun 26, 2026
 
Forecast Discussion
 
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Additional Resources

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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