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

Thunderstorms and Widespread Rainfall Across the Southern Plains

Isolated severe thunderstorms and widespread showers may produce flash flooding across the Southern Plains through Thursday. Numerous instances of flash flooding are expected in south-central Texas, including portions of the Hill Country; and an additional area across eastern Oklahoma into the Ozarks on Thursday. Heavy rainfall and mountain snow will return to southern California on Thursday. Read More >

Current conditions at

Illinois Valley Regional Airport (KVYS)

Lat: 41.35°NLon: 89.15°WElev: 650ft.

Fog/Mist

44°F

7°C

Humidity 96%
Wind Speed SE 3 mph
Barometer 30.19 in
Dewpoint 43°F (6°C)
Visibility 3.00 mi
Last update 19 Nov 7:35 pm CST
Extended Forecast for

Princeton IL

  • Tonight

    Tonight: Cloudy, with a low around 41. Calm wind becoming south around 5 mph.

    Low: 41 °F

    Cloudy

  • Thursday

    Thursday: Mostly cloudy, with a high near 56. Calm wind becoming south around 5 mph in the morning.

    High: 56 °F

    Mostly Cloudy

  • Thursday Night

    Thursday Night: A 20 percent chance of rain after midnight. Mostly cloudy, with a low around 44. Calm wind becoming north around 5 mph after midnight.

    Low: 44 °F

    Mostly Cloudy
    then Slight
    Chance Rain

  • Friday

    Friday: A 30 percent chance of rain, mainly after noon. Mostly cloudy, with a high near 54. Northeast wind 5 to 10 mph.

    High: 54 °F

    Chance Rain

  • Friday Night

    Friday Night: Mostly cloudy, with a low around 31.

    Low: 31 °F

    Mostly Cloudy

  • Saturday

    Saturday: Mostly sunny, with a high near 52.

    High: 52 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 36.

    Low: 36 °F

    Mostly Clear

  • Sunday

    Sunday: Sunny, with a high near 59.

    High: 59 °F

    Sunny

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 36.

    Low: 36 °F

    Partly Cloudy

Detailed Forecast

Tonight
Cloudy, with a low around 41. Calm wind becoming south around 5 mph.
Thursday
Mostly cloudy, with a high near 56. Calm wind becoming south around 5 mph in the morning.
Thursday Night
A 20 percent chance of rain after midnight. Mostly cloudy, with a low around 44. Calm wind becoming north around 5 mph after midnight.
Friday
A 30 percent chance of rain, mainly after noon. Mostly cloudy, with a high near 54. Northeast wind 5 to 10 mph.
Friday Night
Mostly cloudy, with a low around 31.
Saturday
Mostly sunny, with a high near 52.
Saturday Night
Mostly clear, with a low around 36.
Sunday
Sunny, with a high near 59.
Sunday Night
Partly cloudy, with a low around 36.
Monday
Mostly sunny, with a high near 58.
Monday Night
A 40 percent chance of rain. Mostly cloudy, with a low around 41.
Tuesday
A 40 percent chance of rain. Partly sunny, with a high near 53.
Tuesday Night
Partly cloudy, with a low around 31.
Wednesday
Mostly sunny, with a high near 43.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Princeton IL
 41.37°N 89.46°W (Elev. 709 ft)
Last Update:
4:41 pm CST Nov 19, 2025
Forecast Valid:
7pm CST Nov 19, 2025-6pm CST Nov 26, 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