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Prospect Heights Addition, Illinois Weather Forecast
Prospect Heights Addition, Illinois Weather
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Weather Forecast for Prospect Heights Addition, Illinois : Fulton County
Issued: 1:11 pm CST Dec 17, 2025 Latitude: 40.5650388 Longitude: -90.0234496 View on Google Maps

MouseOver for Detail Forecast
This Afternoon Tonight Thursday Friday Saturday Sunday Monday Tuesday
Mostly Sunny on This Afternoon 60% chance of rain on Tonight 100% chance of rain on Thursday Sunny on Friday Mostly Cloudy on Saturday Sunny on Sunday Partly Sunny on Monday Partly Sunny on Tuesday
High: 40°F Low: 47 °F High: 35 °F High: 31°F High: 47°F High: 37°F High: 42°F High: 50°F
Low: 15°F Low: 25°F Low: 20°F Low: 25°F Low: 34°F  
Mostly Sunny Rain Rain Sunny Mostly Cloudy Sunny Partly Sunny Partly Sunny
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Current Conditions at
PEORIA - (KPIA)
41°
Clear
as of 12:54 PM CST
Rel. Humidity: 65%
Dew Point: 30°F
Visibility: 10 Miles
Pressure: 30.00 in.
Flight Rule: VFR
Wind Data
Calm
Cloud Level(s): Clear
Current Conditions at
GALESBURG - (KGBG)
37°
Clear
as of 12:55 PM CST
Rel. Humidity: 93%
Dew Point: 36°F
Visibility: 10 Miles
Pressure: 29.98 in.
Flight Rule: VFR
Wind Data
Calm
Cloud Level(s): Clear
Current Conditions at
MACOMB MUNICIPAL AIRPORT - (KMQB)
39°
Clear
as of 12:55 PM CST
Rel. Humidity: 75%
Dew Point: 32°F
Visibility: 10 Miles
Pressure: 30.02 in.
Flight Rule: VFR
Wind Data
Calm
Cloud Level(s): Clear
Mostly Sunny on This Afternoon This Afternoon... Mostly sunny, with a high near 40. Northeast wind around 6 mph becoming southeast.

60% chance of rain Tonight Tonight... Showers likely, mainly after 5am. Increasing clouds, with a temperature rising to around 47 by 5am. South wind 7 to 17 mph, with gusts as high as 29 mph. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.

100% chance of rain Thursday Thursday... Showers before noon. Temperature falling to around 35 by 5pm. Breezy, with a south wind 16 to 21 mph becoming west in the afternoon. Winds could gust as high as 34 mph. Chance of precipitation is 100%. New precipitation amounts between a tenth and quarter of an inch possible.

30% chance of snow Thursday Night Thursday Night... A 30 percent chance of snow showers before midnight. Mostly cloudy, with a low around 15. Wind chill values between 1 and 11. Blustery, with a west northwest wind 14 to 22 mph, with gusts as high as 34 mph.

Sunny on Friday Friday... Sunny, with a high near 31. West northwest wind 6 to 13 mph becoming south in the afternoon. Winds could gust as high as 24 mph.

Increasing Clouds on Friday Night Friday Night... Increasing clouds, with a low around 25. South wind 8 to 13 mph, with gusts as high as 24 mph.

Mostly Cloudy on Saturday Saturday... Mostly cloudy, with a high near 47. South wind around 10 mph becoming northwest in the afternoon. Winds could gust as high as 24 mph.

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

Sunny on Sunday Sunday... Sunny, with a high near 37.

Mostly Cloudy on Sunday Night Sunday Night... Mostly cloudy, with a low around 25.

Partly Sunny on Monday Monday... Partly sunny, with a high near 42.

Mostly Cloudy on Monday Night Monday Night... Mostly cloudy, with a low around 34.

Partly Sunny on Tuesday Tuesday... Partly sunny, with a high near 50.

Sun Almanac for Prospect Heights Addition, Illinois
Sunrise: 07:18 AM
Sunset: 4:35 PM
Civil Sunrise:06:47 AM
Civil Sunset: 5:06 PM
Nautical Sunrise: 06:13 AM
Nautical Sunset: 5:40 PM
Astro Sunrise: 05:40 AM
Astro Sunset: 6:13 PM
Any use of the information on this page is at your own risk. This information should not be relied upon in life-threatening situations, potential financial loss situations or in lieu of any officially disseminated information. Visit the National Weather Service for official information.