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Furman, Illinois Weather Forecast
Furman, Illinois Weather
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Weather Forecast for Furman, Illinois : St. Clair County
Issued: 12:21 pm CST Dec 17, 2025 Latitude: 38.6014384 Longitude: -89.9667699 View on Google Maps

MouseOver for Detail Forecast
This Afternoon Tonight Thursday Friday Saturday Sunday Monday Tuesday
Sunny on This Afternoon 20% chance of rain on Tonight 80% chance of thunderstorms on Thursday Sunny on Friday Partly Sunny on Saturday Mostly Sunny on Sunday Partly Sunny on Monday 20% chance of rain on Tuesday
High: 55°F Low: 52 °F High: 54 °F High: 39°F High: 56°F High: 43°F High: 47°F High: 59°F
Low: 24°F Low: 32°F Low: 26°F Low: 30°F Low: 41°F  
Sunny Rain Thunderstorms Sunny Partly Sunny Mostly Sunny Partly Sunny Rain
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Current Conditions at
SCOTT AFB - (KBLV)
50°
Mostly Cloudy
as of 12:55 PM CST
Rel. Humidity: 53%
Dew Point: 34°F
Visibility: 10 Miles
Pressure: 29.99 in.
Flight Rule: VFR
Wind Data
5 MPH
180° South
Cloud Level(s): Few at 4000ft, Broken at 12000ft
Current Conditions at
EAST ST LOUIS - (KCPS)
55°
Clear
as of 12:53 PM CST
Rel. Humidity: 47%
Dew Point: 36°F
Visibility: 10 Miles
Pressure: 30.01 in.
Flight Rule: VFR
Wind Data
Calm
Cloud Level(s): Clear
Current Conditions at
ALTON - (KALN)
54°
Clear
as of 12:50 PM CST
Rel. Humidity: 50%
Dew Point: 36°F
Visibility: 10 Miles
Pressure: 30.01 in.
Flight Rule: VFR
Wind Data
5 MPH
Cloud Level(s): Clear
Current Conditions at
ST LOUIS - (KSTL)
54°
Mostly Cloudy
as of 12:51 PM CST
Rel. Humidity: 50%
Dew Point: 36°F
Visibility: 10 Miles
Pressure: 29.99 in.
Flight Rule: VFR
Wind Data
5 MPH
150° Southeast
Cloud Level(s): Broken at 25000ft
Sunny on This Afternoon This Afternoon... Sunny, with a high near 55. Southeast wind 5 to 8 mph.

20% chance of rain Tonight Tonight... Isolated showers before 3am, then isolated showers after 5am. Increasing clouds, with a temperature rising to around 52 by 4am. South wind 8 to 17 mph, with gusts as high as 26 mph. Chance of precipitation is 20%.

80% chance of thunderstorms Thursday Thursday... Showers and possibly a thunderstorm before 1pm, then scattered showers between 1pm and 3pm. Temperature rising to near 54 by 8am, then falling to around 45 during the remainder of the day. Breezy, with a south wind 15 to 20 mph becoming west in the afternoon. Winds could gust as high as 30 mph. Chance of precipitation is 80%.

Cloudy on Thursday Night Thursday Night... Partly cloudy, with a low around 24. Breezy, with a west wind 11 to 20 mph, with gusts as high as 30 mph.

Sunny on Friday Friday... Sunny, with a high near 39. Northwest wind 7 to 10 mph becoming south in the afternoon.

Cloudy on Friday Night Friday Night... Partly cloudy, with a low around 32.

Partly Sunny on Saturday Saturday... Partly sunny, with a high near 56.

Cloudy on Saturday Night Saturday Night... Partly cloudy, with a low around 26.

Mostly Sunny on Sunday Sunday... Mostly sunny, with a high near 43.

Mostly Cloudy on Sunday Night Sunday Night... Mostly cloudy, with a low around 30.

Partly Sunny on Monday Monday... Partly sunny, with a high near 47.

Mostly Cloudy on Monday Night Monday Night... Mostly cloudy, with a low around 41.

20% chance of rain Tuesday Tuesday... A 20 percent chance of rain. Partly sunny, with a high near 59.

Current Radar Image


Sun Almanac for Furman, Illinois
Sunrise: 07:12 AM
Sunset: 4:40 PM
Civil Sunrise:06:42 AM
Civil Sunset: 5:10 PM
Nautical Sunrise: 06:09 AM
Nautical Sunset: 5:44 PM
Astro Sunrise: 05:37 AM
Astro Sunset: 6:16 PM
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