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Prospect, Illinois Weather Forecast
Prospect, Illinois Weather
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Weather Forecast for Prospect, Illinois : Champaign County
Issued: 1:11 pm CST Dec 17, 2025 Latitude: 40.319478 Longitude: -88.212826 View on Google Maps

MouseOver for Detail Forecast
This Afternoon Tonight Thursday Friday Saturday Sunday Monday Tuesday
Mostly Sunny on This Afternoon 40% chance of rain on Tonight 100% chance of rain on Thursday Mostly Sunny on Friday Mostly Cloudy on Saturday Sunny on Sunday Partly Sunny on Monday Mostly Cloudy on Tuesday
High: 42°F Low: 46 °F High: 50 °F High: 29°F High: 46°F High: 36°F High: 41°F High: 48°F
Low: 15°F Low: 22°F Low: 20°F Low: 22°F Low: 33°F  
Mostly Sunny Rain Rain Mostly Sunny Mostly Cloudy Sunny Partly Sunny Mostly Cloudy
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Current Conditions at
RANTOUL - (KTIP)
39°
Clear
as of 12:55 PM CST
Rel. Humidity: 75%
Dew Point: 32°F
Visibility: 10 Miles
Pressure: 30.01 in.
Flight Rule: VFR
Wind Data
Calm
Cloud Level(s): Clear
Current Conditions at
CHAMPAIGN - (KCMI)
37°
Clear
as of 12:53 PM CST
Rel. Humidity: 86%
Dew Point: 34°F
Visibility: 9 Miles
Pressure: 30.02 in.
Flight Rule: VFR
Wind Data
3 MPH
220° Southwest
Cloud Level(s): Clear
Current Conditions at
DANVILLE - (KDNV)
43°
Clear
as of 12:55 PM CST
Rel. Humidity: 65%
Dew Point: 32°F
Visibility: 10 Miles
Pressure: 30.03 in.
Flight Rule: VFR
Wind Data
Calm
Cloud Level(s): Clear
Current Conditions at
BLOOMINGTON - (KBMI)
39°
Clear
as of 12:56 PM CST
Rel. Humidity: 75%
Dew Point: 32°F
Visibility: 10 Miles
Pressure: 30.01 in.
Flight Rule: VFR
Wind Data
5 MPH
100° East
Cloud Level(s): Clear
Mostly Sunny on This Afternoon This Afternoon... Mostly sunny, with a high near 42. Light and variable wind becoming southeast around 6 mph.

40% chance of rain Tonight Tonight... A 40 percent chance of showers after 3am. Increasing clouds, with a temperature rising to around 46 by 5am. Breezy, with a south wind 8 to 13 mph increasing to 17 to 22 mph after midnight. Winds could gust as high as 34 mph.

100% chance of rain Thursday Thursday... Showers, mainly before 3pm. Temperature rising to near 50 by 9am, then falling to around 38 during the remainder of the day. Breezy, with a south wind 18 to 24 mph becoming west in the afternoon. Winds could gust as high as 39 mph. Chance of precipitation is 100%. New precipitation amounts between a quarter and half of an inch possible.

30% chance of rain & snow Thursday Night Thursday Night... A chance of rain and snow showers before midnight, then a chance of flurries between midnight and 3am. Mostly cloudy, with a low around 15. Wind chill values between -3 and 7. Breezy, with a west wind 17 to 24 mph, with gusts as high as 31 mph. Chance of precipitation is 30%.

Mostly Sunny on Friday Friday... Mostly sunny, with a high near 29. Blustery, with a west northwest wind 17 to 22 mph becoming south southwest 9 to 14 mph in the afternoon. Winds could gust as high as 28 mph.

Cloudy on Friday Night Friday Night... Partly cloudy, with a low around 22. Breezy, with a south wind 9 to 14 mph increasing to 15 to 20 mph after midnight. Winds could gust as high as 28 mph.

Mostly Cloudy on Saturday Saturday... Mostly cloudy, with a high near 46. Breezy, with a south wind 11 to 20 mph becoming west in the afternoon. Winds could gust as high as 28 mph.

Cloudy on Saturday Night Saturday Night... Partly cloudy, with a low around 20.

Sunny on Sunday Sunday... Sunny, with a high near 36.

Mostly Cloudy on Sunday Night Sunday Night... Mostly cloudy, with a low around 22.

Partly Sunny on Monday Monday... Partly sunny, with a high near 41.

Mostly Cloudy on Monday Night Monday Night... Mostly cloudy, with a low around 33.

Mostly Cloudy on Tuesday Tuesday... Mostly cloudy, with a high near 48.

Current Radar Image


Sun Almanac for Prospect, Illinois
Sunrise: 07:10 AM
Sunset: 4:28 PM
Civil Sunrise:06:39 AM
Civil Sunset: 4:59 PM
Nautical Sunrise: 06:05 AM
Nautical Sunset: 5:33 PM
Astro Sunrise: 05:32 AM
Astro Sunset: 6:06 PM
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