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

Hazardous Weather Conditions

Current conditions at

Edgar County Airport (KPRG)

Lat: 39.7°NLon: 87.67°WElev: 650ft.

Fog/Mist

69°F

21°C

Humidity 98%
Wind Speed E 5 mph
Barometer 30.07 in
Dewpoint 68°F (20°C)
Visibility 4.00 mi
Last update 18 Sep 11:55 pm CDT
Extended Forecast for

Westville IL

  • Overnight

    Overnight: Mostly cloudy, with a low around 66. Southeast wind around 6 mph.

    Low: 66 °F

    Mostly Cloudy

  • Saturday

    Saturday: A 40 percent chance of showers and thunderstorms, mainly between 10am and 4pm. Partly sunny, with a high near 88. South southwest wind 6 to 9 mph, with gusts as high as 16 mph.

    High: 88 °F

    Chance
    T-storms

  • Saturday Night

    Saturday Night: A slight chance of showers and thunderstorms before midnight, then a chance of showers and thunderstorms after 1am. Mostly cloudy, with a low around 69. South southwest wind around 7 mph. Chance of precipitation is 30%.

    Low: 69 °F

    Slight Chance
    T-storms then
    Chance
    Showers

  • Sunday

    Sunday: A 50 percent chance of showers. Increasing clouds, with a high near 85. Calm wind becoming north 5 to 8 mph in the morning.

    High: 85 °F

    Chance
    Showers

  • Sunday Night

    Sunday Night: A chance of showers before 1am, then showers likely and possibly a thunderstorm between 1am and 4am, then showers likely after 4am. Mostly cloudy, with a low around 60. Northeast wind 10 to 13 mph, with gusts as high as 18 mph. Chance of precipitation is 60%. New rainfall amounts between a quarter and half of an inch possible.

    Low: 60 °F

    Showers
    Likely

  • Monday

    Monday: Showers likely before 7am, then showers likely and possibly a thunderstorm between 7am and 1pm, then a chance of showers and thunderstorms after 1pm. Mostly cloudy, with a high near 71. Northeast wind around 14 mph, with gusts as high as 21 mph. Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    High: 71 °F

    Showers
    Likely

  • Monday Night

    Monday Night: A 40 percent chance of showers. Mostly cloudy, with a low around 55. Northeast wind 10 to 15 mph, with gusts as high as 22 mph.

    Low: 55 °F

    Chance
    Showers

  • Tuesday

    Tuesday: Mostly cloudy, with a high near 69.

    High: 69 °F

    Mostly Cloudy

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 54.

    Low: 54 °F

    Mostly Cloudy

Detailed Forecast

Overnight
Mostly cloudy, with a low around 66. Southeast wind around 6 mph.
Saturday
A 40 percent chance of showers and thunderstorms, mainly between 10am and 4pm. Partly sunny, with a high near 88. South southwest wind 6 to 9 mph, with gusts as high as 16 mph.
Saturday Night
A slight chance of showers and thunderstorms before midnight, then a chance of showers and thunderstorms after 1am. Mostly cloudy, with a low around 69. South southwest wind around 7 mph. Chance of precipitation is 30%.
Sunday
A 50 percent chance of showers. Increasing clouds, with a high near 85. Calm wind becoming north 5 to 8 mph in the morning.
Sunday Night
A chance of showers before 1am, then showers likely and possibly a thunderstorm between 1am and 4am, then showers likely after 4am. Mostly cloudy, with a low around 60. Northeast wind 10 to 13 mph, with gusts as high as 18 mph. Chance of precipitation is 60%. New rainfall amounts between a quarter and half of an inch possible.
Monday
Showers likely before 7am, then showers likely and possibly a thunderstorm between 7am and 1pm, then a chance of showers and thunderstorms after 1pm. Mostly cloudy, with a high near 71. Northeast wind around 14 mph, with gusts as high as 21 mph. Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Monday Night
A 40 percent chance of showers. Mostly cloudy, with a low around 55. Northeast wind 10 to 15 mph, with gusts as high as 22 mph.
Tuesday
Mostly cloudy, with a high near 69.
Tuesday Night
Mostly cloudy, with a low around 54.
Wednesday
Partly sunny, with a high near 70.
Wednesday Night
Mostly cloudy, with a low around 54.
Thursday
Partly sunny, with a high near 72.
Thursday Night
Partly cloudy, with a low around 55.
Friday
Mostly sunny, with a high near 74.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Westville IL
 40.03°N 87.63°W (Elev. 656 ft)
Last Update:
7:41 pm CDT Sep 18, 2026
Forecast Valid:
12am CDT Sep 19, 2026-6pm CDT Sep 25, 2026
 
Forecast Discussion
 
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Additional Resources

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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