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

Peoria - General Downing-Peoria International Airport (KPIA)

Lat: 40.67°NLon: 89.68°WElev: 659ft.

Fair

61°F

16°C

Humidity 58%
Wind Speed SW 8 mph
Barometer 29.86 in (1011.1 mb)
Dewpoint 46°F (8°C)
Visibility 10.00 mi
Last update 20 Mar 9:54 am CDT
Extended Forecast for

Farmington IL

  • Today

    Today: Mostly sunny, with a high near 75. West southwest wind 10 to 13 mph becoming northwest in the afternoon. Winds could gust as high as 25 mph.

    High: 75 °F

    Mostly Sunny

  • Tonight

    Tonight: Mostly cloudy, with a low around 44. North wind around 6 mph becoming east southeast after midnight.

    Low: 44 °F

    Mostly Cloudy

  • Saturday

    Saturday: Sunny, with a high near 80. Southeast wind 6 to 11 mph becoming southwest in the afternoon. Winds could gust as high as 18 mph.

    High: 80 °F

    Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 57. South wind 7 to 11 mph, with gusts as high as 23 mph.

    Low: 57 °F

    Mostly Clear

  • Sunday

    Sunday: Partly sunny, with a high near 77. Breezy, with a south southwest wind 10 to 20 mph becoming north in the afternoon. Winds could gust as high as 29 mph.

    High: 77 °F

    Partly Sunny
    then Mostly
    Cloudy and
    Breezy

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 35. North wind 13 to 18 mph, with gusts as high as 30 mph.

    Low: 35 °F

    Partly Cloudy

  • Monday

    Monday: Sunny, with a high near 53. North wind 7 to 10 mph, with gusts as high as 20 mph.

    High: 53 °F

    Sunny

  • Monday Night

    Monday Night: Mostly cloudy, with a low around 37.

    Low: 37 °F

    Mostly Cloudy

  • Tuesday

    Tuesday: Mostly cloudy, with a high near 59.

    High: 59 °F

    Mostly Cloudy

Detailed Forecast

Today
Mostly sunny, with a high near 75. West southwest wind 10 to 13 mph becoming northwest in the afternoon. Winds could gust as high as 25 mph.
Tonight
Mostly cloudy, with a low around 44. North wind around 6 mph becoming east southeast after midnight.
Saturday
Sunny, with a high near 80. Southeast wind 6 to 11 mph becoming southwest in the afternoon. Winds could gust as high as 18 mph.
Saturday Night
Mostly clear, with a low around 57. South wind 7 to 11 mph, with gusts as high as 23 mph.
Sunday
Partly sunny, with a high near 77. Breezy, with a south southwest wind 10 to 20 mph becoming north in the afternoon. Winds could gust as high as 29 mph.
Sunday Night
Partly cloudy, with a low around 35. North wind 13 to 18 mph, with gusts as high as 30 mph.
Monday
Sunny, with a high near 53. North wind 7 to 10 mph, with gusts as high as 20 mph.
Monday Night
Mostly cloudy, with a low around 37.
Tuesday
Mostly cloudy, with a high near 59.
Tuesday Night
Mostly cloudy, with a low around 39.
Wednesday
Partly sunny, with a high near 60.
Wednesday Night
Partly cloudy, with a low around 46.
Thursday
Mostly sunny, with a high near 70.
Basemap Options
Click map to change the forecast location
Loading map...
Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Farmington IL
 40.69°N 90.02°W (Elev. 758 ft)
Last Update:
9:36 am CDT Mar 20, 2026
Forecast Valid:
10am CDT Mar 20, 2026-6pm CDT Mar 26, 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