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.

Overcast

58°F

14°C

Humidity 81%
Wind Speed NE 8 mph
Barometer 30.26 in
Dewpoint 53°F (12°C)
Visibility 10.00 mi
Last update 15 Oct 8:15 am CDT
Extended Forecast for

Granville IL

  • Today

    Today: A slight chance of showers between 11am and noon. Mostly cloudy, with a high near 67. Northeast wind 5 to 10 mph. Chance of precipitation is 20%.

    High: 67 °F

    Slight Chance
    Showers then
    Mostly Cloudy

  • Tonight

    Tonight: Mostly cloudy, with a low around 54. East wind 5 to 10 mph.

    Low: 54 °F

    Mostly Cloudy

  • Thursday

    Thursday: Mostly sunny, with a high near 74. Southeast wind 5 to 10 mph.

    High: 74 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 57. Southeast wind 5 to 10 mph.

    Low: 57 °F

    Partly Cloudy

  • Friday

    Friday: Partly sunny, with a high near 77.

    High: 77 °F

    Partly Sunny

  • Friday Night

    Friday Night: Showers likely after 1am. Mostly cloudy, with a low around 61. Chance of precipitation is 60%.

    Low: 61 °F

    Mostly Cloudy
    then Showers
    Likely

  • Saturday

    Saturday: Showers likely. Partly sunny, with a high near 73. Chance of precipitation is 70%.

    High: 73 °F

    Showers
    Likely

  • Saturday Night

    Saturday Night: Showers likely, mainly after 1am. Partly cloudy, with a low around 48. Chance of precipitation is 60%.

    Low: 48 °F

    Showers
    Likely

  • Sunday

    Sunday: A 30 percent chance of showers before 1pm. Mostly sunny, with a high near 62.

    High: 62 °F

    Chance
    Showers

Detailed Forecast

Today
A slight chance of showers between 11am and noon. Mostly cloudy, with a high near 67. Northeast wind 5 to 10 mph. Chance of precipitation is 20%.
Tonight
Mostly cloudy, with a low around 54. East wind 5 to 10 mph.
Thursday
Mostly sunny, with a high near 74. Southeast wind 5 to 10 mph.
Thursday Night
Partly cloudy, with a low around 57. Southeast wind 5 to 10 mph.
Friday
Partly sunny, with a high near 77.
Friday Night
Showers likely after 1am. Mostly cloudy, with a low around 61. Chance of precipitation is 60%.
Saturday
Showers likely. Partly sunny, with a high near 73. Chance of precipitation is 70%.
Saturday Night
Showers likely, mainly after 1am. Partly cloudy, with a low around 48. Chance of precipitation is 60%.
Sunday
A 30 percent chance of showers before 1pm. Mostly sunny, with a high near 62.
Sunday Night
Clear, with a low around 41.
Monday
Sunny, with a high near 66.
Monday Night
Mostly clear, with a low around 46.
Tuesday
Sunny, with a high near 68.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Granville IL
 41.26°N 89.24°W (Elev. 699 ft)
Last Update:
4:16 am CDT Oct 15, 2025
Forecast Valid:
8am CDT Oct 15, 2025-6pm CDT Oct 21, 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