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

Hazardous Weather Conditions

Current conditions at

Marshall County Airport (KC75)

Lat: 41.02°NLon: 89.39°WElev: 545ft.

Overcast

72°F

22°C

Humidity 84%
Wind Speed NW 7 mph
Barometer 30.01 in
Dewpoint 67°F (19°C)
Visibility 10.00 mi
Last update 8 Aug 4:35 am CDT
Extended Forecast for

Princeton IL

  • Today

    Today: Sunny, with a high near 83. Northwest wind 5 to 10 mph.

    High: 83 °F

    Sunny

  • Tonight

    Tonight: Mostly clear, with a low around 63. Calm wind becoming southeast around 5 mph after midnight.

    Low: 63 °F

    Mostly Clear

  • Sunday

    Sunday: A 40 percent chance of showers and thunderstorms, mainly after 4pm. Partly sunny, with a high near 88. South wind 5 to 15 mph, with gusts as high as 20 mph.

    High: 88 °F

    Chance
    Showers then
    Chance
    T-storms

  • Sunday Night

    Sunday Night: A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 1am. Increasing clouds, with a low around 72. Southwest wind around 10 mph, with gusts as high as 20 mph. Chance of precipitation is 60%.

    Low: 72 °F

    Chance
    T-storms then
    Showers
    Likely

  • Monday

    Monday: A 40 percent chance of showers and thunderstorms before 1pm. Partly sunny, with a high near 88.

    High: 88 °F

    Chance
    T-storms

  • Monday Night

    Monday Night: Showers likely and possibly a thunderstorm. Mostly cloudy, with a low around 70. Chance of precipitation is 60%.

    Low: 70 °F

    Showers
    Likely

  • Tuesday

    Tuesday: A 50 percent chance of showers and thunderstorms. Partly sunny, with a high near 85.

    High: 85 °F

    Chance
    T-storms

  • Tuesday Night

    Tuesday Night: Showers likely and possibly a thunderstorm. Mostly cloudy, with a low around 68. Chance of precipitation is 60%.

    Low: 68 °F

    Showers
    Likely

  • Wednesday

    Wednesday: A 40 percent chance of showers and thunderstorms. Mostly cloudy, with a high near 82.

    High: 82 °F

    Chance
    T-storms

Detailed Forecast

Today
Sunny, with a high near 83. Northwest wind 5 to 10 mph.
Tonight
Mostly clear, with a low around 63. Calm wind becoming southeast around 5 mph after midnight.
Sunday
A 40 percent chance of showers and thunderstorms, mainly after 4pm. Partly sunny, with a high near 88. South wind 5 to 15 mph, with gusts as high as 20 mph.
Sunday Night
A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 1am. Increasing clouds, with a low around 72. Southwest wind around 10 mph, with gusts as high as 20 mph. Chance of precipitation is 60%.
Monday
A 40 percent chance of showers and thunderstorms before 1pm. Partly sunny, with a high near 88.
Monday Night
Showers likely and possibly a thunderstorm. Mostly cloudy, with a low around 70. Chance of precipitation is 60%.
Tuesday
A 50 percent chance of showers and thunderstorms. Partly sunny, with a high near 85.
Tuesday Night
Showers likely and possibly a thunderstorm. Mostly cloudy, with a low around 68. Chance of precipitation is 60%.
Wednesday
A 40 percent chance of showers and thunderstorms. Mostly cloudy, with a high near 82.
Wednesday Night
A 30 percent chance of showers. Partly cloudy, with a low around 65.
Thursday
A 40 percent chance of showers. Partly sunny, with a high near 78.
Thursday Night
A 30 percent chance of showers. Mostly cloudy, with a low around 61.
Friday
A 40 percent chance of showers. Partly sunny, with a high near 76.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Princeton IL
 41.4°N 89.49°W (Elev. 692 ft)
Last Update:
2:21 am CDT Aug 8, 2026
Forecast Valid:
5am CDT Aug 8, 2026-6pm CDT Aug 14, 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