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

Heavy Rain Across the Southern US; Unsettled Pattern in the Pacific Northwest

A storm system will bring heavy rainfall, thunderstorms, and flooding threats to portions of the Southern Plains Friday, the Lower Mississippi Valley Saturday, and the Southeast into the Mid-Atlantic on Sunday. High elevation snow and mixed precipitation and rain in the lower elevations will impact the Pacific Northwest this weekend before a stronger system moves in early next week. Read More >

Current conditions at

Illinois Valley Regional Airport (KVYS)

Lat: 41.35°NLon: 89.15°WElev: 650ft.

Fair

27°F

-3°C

Humidity 93%
Wind Speed E 3 mph
Barometer 30.18 in
Dewpoint 25°F (-4°C)
Visibility 10.00 mi
Last update 13 Feb 6:41 am CST
Extended Forecast for

Princeton IL

  • Today

    Today: Sunny, with a high near 54. Southeast wind 5 to 10 mph becoming southwest in the afternoon.

    High: 54 °F

    Sunny

  • Tonight

    Tonight: Increasing clouds, with a low around 31. Southwest wind around 5 mph becoming calm in the evening.

    Low: 31 °F

    Increasing
    Clouds

  • Saturday

    Saturday: Mostly cloudy, with a high near 53. Calm wind becoming southeast around 5 mph in the afternoon.

    High: 53 °F

    Mostly Cloudy

  • Saturday Night

    Saturday Night: A 20 percent chance of rain before midnight. Mostly cloudy, with a low around 35. Southeast wind around 5 mph becoming calm.

    Low: 35 °F

    Slight Chance
    Rain then
    Partly Cloudy

  • Sunday

    Sunday: Sunny, with a high near 58.

    High: 58 °F

    Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 37.

    Low: 37 °F

    Mostly Clear

  • Washington's Birthday

    Washington's Birthday: Partly sunny, with a high near 60.

    High: 60 °F

    Partly Sunny

  • Monday Night

    Monday Night: Mostly cloudy, with a low around 41.

    Low: 41 °F

    Mostly Cloudy

  • Tuesday

    Tuesday: Mostly cloudy, with a high near 59.

    High: 59 °F

    Mostly Cloudy

Detailed Forecast

Today
Sunny, with a high near 54. Southeast wind 5 to 10 mph becoming southwest in the afternoon.
Tonight
Increasing clouds, with a low around 31. Southwest wind around 5 mph becoming calm in the evening.
Saturday
Mostly cloudy, with a high near 53. Calm wind becoming southeast around 5 mph in the afternoon.
Saturday Night
A 20 percent chance of rain before midnight. Mostly cloudy, with a low around 35. Southeast wind around 5 mph becoming calm.
Sunday
Sunny, with a high near 58.
Sunday Night
Mostly clear, with a low around 37.
Washington's Birthday
Partly sunny, with a high near 60.
Monday Night
Mostly cloudy, with a low around 41.
Tuesday
Mostly cloudy, with a high near 59.
Tuesday Night
A 40 percent chance of rain after midnight. Mostly cloudy, with a low around 49.
Wednesday
A 30 percent chance of rain. Partly sunny, with a high near 64.
Wednesday Night
A 30 percent chance of rain. Partly cloudy, with a low around 36.
Thursday
A 30 percent chance of rain. Partly sunny, with a high near 52.
Basemap Options
Click map to change the forecast location
Loading map...
Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Princeton IL
 41.37°N 89.46°W (Elev. 709 ft)
Last Update:
4:52 am CST Feb 13, 2026
Forecast Valid:
6am CST Feb 13, 2026-6pm CST Feb 19, 2026
 
Forecast Discussion
 
Get as KML Get as XML

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