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

Illinois Valley Regional Airport (KVYS)

Lat: 41.35°NLon: 89.15°WElev: 650ft.

Partly Cloudy

77°F

25°C

Humidity 89%
Wind Speed Calm
Barometer 29.93 in
Dewpoint 74°F (23°C)
Visibility 10.00 mi
Heat Index78°F (26°C)
Last update 15 Jul 11:35 pm CDT
Extended Forecast for

2 Miles WSW Princeton IL

  • Tonight

    Tonight: Partly cloudy, with a low around 71. South wind around 5 mph.

    Low: 71 °F

    Partly Cloudy

  • Wednesday

    Wednesday: A 50 percent chance of showers and thunderstorms, mainly after 2pm. Sunny, then becoming mostly cloudy during the afternoon, with a high near 90. Southwest wind 5 to 10 mph.

    High: 90 °F

    Mostly Sunny
    then Chance
    T-storms

  • Wednesday Night

    Wednesday Night: Showers and thunderstorms likely, mainly before 1am. Mostly cloudy, with a low around 67. West wind around 5 mph. Chance of precipitation is 60%.

    Low: 67 °F

    T-storms
    Likely

  • Thursday

    Thursday: A slight chance of showers and thunderstorms. Mostly cloudy, with a high near 75. North wind around 10 mph. Chance of precipitation is 20%.

    High: 75 °F

    Slight Chance
    T-storms then
    Slight Chance
    Showers

  • Thursday Night

    Thursday Night: Mostly cloudy, with a low around 59.

    Low: 59 °F

    Mostly Cloudy

  • Friday

    Friday: Mostly sunny, with a high near 80.

    High: 80 °F

    Mostly Sunny

  • Friday Night

    Friday Night: A 30 percent chance of showers and thunderstorms after 1am. Mostly cloudy, with a low around 64.

    Low: 64 °F

    Mostly Cloudy
    then Chance
    T-storms

  • Saturday

    Saturday: Showers likely and possibly a thunderstorm before 1pm, then a chance of showers and thunderstorms after 1pm. Mostly cloudy, with a high near 85. Chance of precipitation is 60%.

    High: 85 °F

    Showers
    Likely

  • Saturday Night

    Saturday Night: A chance of showers and thunderstorms. Mostly cloudy, with a low around 68. Chance of precipitation is 50%.

    Low: 68 °F

    Chance
    T-storms

Detailed Forecast

Tonight
Partly cloudy, with a low around 71. South wind around 5 mph.
Wednesday
A 50 percent chance of showers and thunderstorms, mainly after 2pm. Sunny, then becoming mostly cloudy during the afternoon, with a high near 90. Southwest wind 5 to 10 mph.
Wednesday Night
Showers and thunderstorms likely, mainly before 1am. Mostly cloudy, with a low around 67. West wind around 5 mph. Chance of precipitation is 60%.
Thursday
A slight chance of showers and thunderstorms. Mostly cloudy, with a high near 75. North wind around 10 mph. Chance of precipitation is 20%.
Thursday Night
Mostly cloudy, with a low around 59.
Friday
Mostly sunny, with a high near 80.
Friday Night
A 30 percent chance of showers and thunderstorms after 1am. Mostly cloudy, with a low around 64.
Saturday
Showers likely and possibly a thunderstorm before 1pm, then a chance of showers and thunderstorms after 1pm. Mostly cloudy, with a high near 85. Chance of precipitation is 60%.
Saturday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 68. Chance of precipitation is 50%.
Sunday
A 40 percent chance of showers. Partly sunny, with a high near 84.
Sunday Night
A 40 percent chance of showers. Mostly cloudy, with a low around 65.
Monday
A 30 percent chance of showers. Partly sunny, with a high near 84.
Monday Night
Partly cloudy, with a low around 68.
Tuesday
Mostly sunny, with a high near 88.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
2 Miles WSW Princeton IL
 41.38°N 89.49°W (Elev. 650 ft)
Last Update:
10:31 pm CDT Jul 15, 2025
Forecast Valid:
11pm CDT Jul 15, 2025-6pm CDT Jul 22, 2025
 
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