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

Pontiac Municipal Airport (KPNT)

Lat: 40.92°NLon: 88.62°WElev: 650ft.

Fair

59°F

15°C

Humidity 21%
Wind Speed NA
Barometer 30.19 in
Dewpoint 19°F (-7°C)
Visibility 10.00 mi
Last update 20 Apr 6:35 pm CDT
Extended Forecast for

Gridley IL

  • Tonight

    Tonight: Partly cloudy, with a low around 47. South wind 8 to 14 mph, with gusts as high as 23 mph.

    Low: 47 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Mostly sunny, with a high near 78. Breezy, with a southwest wind 14 to 22 mph, with gusts as high as 32 mph.

    High: 78 °F

    Mostly Sunny
    and Breezy

  • Tuesday Night

    Tuesday Night: A 50 percent chance of showers and thunderstorms, mainly before 1am. Partly cloudy, with a low around 58. West southwest wind 11 to 16 mph, with gusts as high as 23 mph.

    Low: 58 °F

    Chance
    T-storms

  • Wednesday

    Wednesday: Mostly sunny, with a high near 78. West southwest wind around 10 mph, with gusts as high as 17 mph.

    High: 78 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 58. South wind 8 to 10 mph, with gusts as high as 16 mph.

    Low: 58 °F

    Mostly Clear

  • Thursday

    Thursday: Mostly sunny, with a high near 82. Breezy, with a south wind 10 to 15 mph increasing to 19 to 24 mph in the afternoon. Winds could gust as high as 31 mph.

    High: 82 °F

    Mostly Sunny
    then Mostly
    Sunny and
    Breezy

  • Thursday Night

    Thursday Night: Showers likely and possibly a thunderstorm after 1am. Mostly cloudy, with a low around 61. Breezy, with a south wind 18 to 21 mph, with gusts as high as 30 mph. Chance of precipitation is 60%. New rainfall amounts between a quarter and half of an inch possible.

    Low: 61 °F

    Breezy.
    Mostly Cloudy
    then Showers
    Likely

  • Friday

    Friday: Showers likely, with thunderstorms also possible after 1pm. Mostly cloudy, with a high near 75. Chance of precipitation is 70%.

    High: 75 °F

    Showers
    Likely

  • Friday Night

    Friday Night: A 40 percent chance of showers before 1am. Partly cloudy, with a low around 49.

    Low: 49 °F

    Chance
    Showers

Detailed Forecast

Tonight
Partly cloudy, with a low around 47. South wind 8 to 14 mph, with gusts as high as 23 mph.
Tuesday
Mostly sunny, with a high near 78. Breezy, with a southwest wind 14 to 22 mph, with gusts as high as 32 mph.
Tuesday Night
A 50 percent chance of showers and thunderstorms, mainly before 1am. Partly cloudy, with a low around 58. West southwest wind 11 to 16 mph, with gusts as high as 23 mph.
Wednesday
Mostly sunny, with a high near 78. West southwest wind around 10 mph, with gusts as high as 17 mph.
Wednesday Night
Mostly clear, with a low around 58. South wind 8 to 10 mph, with gusts as high as 16 mph.
Thursday
Mostly sunny, with a high near 82. Breezy, with a south wind 10 to 15 mph increasing to 19 to 24 mph in the afternoon. Winds could gust as high as 31 mph.
Thursday Night
Showers likely and possibly a thunderstorm after 1am. Mostly cloudy, with a low around 61. Breezy, with a south wind 18 to 21 mph, with gusts as high as 30 mph. Chance of precipitation is 60%. New rainfall amounts between a quarter and half of an inch possible.
Friday
Showers likely, with thunderstorms also possible after 1pm. Mostly cloudy, with a high near 75. Chance of precipitation is 70%.
Friday Night
A 40 percent chance of showers before 1am. Partly cloudy, with a low around 49.
Saturday
Mostly sunny, with a high near 69.
Saturday Night
Mostly cloudy, with a low around 47.
Sunday
Partly sunny, with a high near 68.
Sunday Night
A chance of showers. Mostly cloudy, with a low around 48.
Monday
A chance of showers. Mostly cloudy, with a high near 68.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Gridley IL
 40.74°N 88.89°W (Elev. 738 ft)
Last Update:
6:36 pm CDT Apr 20, 2026
Forecast Valid:
6pm CDT Apr 20, 2026-6pm CDT Apr 27, 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