Current conditions at

Peoria - General Downing-Peoria International Airport (KPIA)

Lat: 40.67°NLon: 89.68°WElev: 659ft.

Fair

65°F

18°C

Humidity 76%
Wind Speed Calm
Barometer 29.94 in (1013.5 mb)
Dewpoint 57°F (14°C)
Visibility 10.00 mi
Last update 21 Jun 1:54 am CDT
Extended Forecast for

4 Miles E Lewistown IL

Flood Warning until further notice
Flood Watch June 21, 07:00am until June 22, 01:00am
Click here for hazard details and duration
Flood Warning until further notice
Flood Watch
  •  
    Flood Warning until further notice

    NOW until further notice

    Flood Warning

  • Overnight

    Low: 59 °F

    Mostly Cloudy

  • Sunday

    Sunday: A chance of showers and thunderstorms, then showers and possibly a thunderstorm after 9am. Some of the storms could produce heavy rainfall.  High near 70. East wind 6 to 15 mph, with gusts as high as 25 mph.  Chance of precipitation is 100%. New rainfall amounts between 1 and 2 inches possible.

    High: 70 °F

    Heavy Rain

  • Sunday Night

    Sunday Night: Showers and thunderstorms likely before 8pm, then a chance of showers.  Cloudy, with a low around 56. Northeast wind 10 to 13 mph, with gusts as high as 23 mph.  Chance of precipitation is 60%. New precipitation amounts between a quarter and half of an inch possible.

    Low: 56 °F

    T-storms
    Likely then
    Chance
    Showers

  • Monday

    Monday: Partly sunny, with a high near 75. North northeast wind 8 to 11 mph, with gusts as high as 21 mph.

    High: 75 °F

    Partly Sunny

  • Monday Night

    Monday Night: Mostly cloudy, then gradually becoming clear, with a low around 54. North northeast wind around 5 mph becoming calm  in the evening.

    Low: 54 °F

    Decreasing
    Clouds

  • Tuesday

    Tuesday: Sunny, with a high near 78. Calm wind.

    High: 78 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 58. Calm wind.

    Low: 58 °F

    Mostly Clear

  • Wednesday

    Wednesday: Mostly sunny, with a high near 81.

    High: 81 °F

    Mostly Sunny

Detailed Forecast

Overnight
Mostly cloudy, with a low around 59. Light east wind.
Sunday
A chance of showers and thunderstorms, then showers and possibly a thunderstorm after 9am. Some of the storms could produce heavy rainfall. High near 70. East wind 6 to 15 mph, with gusts as high as 25 mph. Chance of precipitation is 100%. New rainfall amounts between 1 and 2 inches possible.
Sunday Night
Showers and thunderstorms likely before 8pm, then a chance of showers. Cloudy, with a low around 56. Northeast wind 10 to 13 mph, with gusts as high as 23 mph. Chance of precipitation is 60%. New precipitation amounts between a quarter and half of an inch possible.
Monday
Partly sunny, with a high near 75. North northeast wind 8 to 11 mph, with gusts as high as 21 mph.
Monday Night
Mostly cloudy, then gradually becoming clear, with a low around 54. North northeast wind around 5 mph becoming calm in the evening.
Tuesday
Sunny, with a high near 78. Calm wind.
Tuesday Night
Mostly clear, with a low around 58. Calm wind.
Wednesday
Mostly sunny, with a high near 81.
Wednesday Night
Partly cloudy, with a low around 59.
Thursday
Mostly sunny, with a high near 80.
Thursday Night
Mostly clear, with a low around 58.
Friday
Mostly sunny, with a high near 81.
Friday Night
A chance of showers and thunderstorms. Partly cloudy, with a low around 62.
Saturday
A chance of showers and thunderstorms. Partly sunny, with a high near 84.
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ABOUT THIS FORECAST

 
Point Forecast:
4 Miles E Lewistown IL
 40.41°N 90.09°W (Elev. 561 ft)
1:26 am CDT Jun 21, 2026
2am CDT Jun 21, 2026-6pm CDT Jun 27, 2026
 
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Additional Resources

Radar & Satellite Image

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Hourly Weather Forecast

National Digital Forecast Database