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Jonesboro, Illinois Weather Forecast
Jonesboro, Illinois Weather
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Weather Forecast for Jonesboro, Illinois : Union County
Issued: 3:31 am CST Dec 7, 2025 Latitude: 37.4517163 Longitude: -89.2681402 View on Google Maps

MouseOver for Detail Forecast
Today Tonight Monday Tuesday Wednesday Thursday Friday Saturday
10% chance of  on Today Cloudy on Tonight Mostly Cloudy on Monday Mostly Sunny on Tuesday Partly Sunny on Wednesday 20% chance of rain on Thursday Partly Sunny on Friday Mostly Sunny on Saturday
High: 46°F Low: 27°F High: 38°F High: 48°F High: 51°F High: 41°F High: 30°F High: 25°F
Low: 26°F Low: 42°F Low: 30°F Low: 21°F Low: 10°F  
Morning Fog Cloudy Mostly Cloudy Mostly Sunny Partly Sunny Rain Partly Sunny Mostly Sunny
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Current Conditions at
CARBONDALE - (KMDH)
34°
Mostly Cloudy
Mist
as of 3:52 AM CST
Rel. Humidity: 100%
Dew Point: 34°F
Visibility: 3 Miles
Pressure: 29.96 in.
Flight Rule: MVFR
Wind Data
5 MPH
140° Southeast
Cloud Level(s): Scattered at 5500ft, Broken at 7500ft
Current Conditions at
CAPE GIRARDEAU - (KCGI)
36°
Cloudy
Mist
as of 3:53 AM CST
Rel. Humidity: 100%
Dew Point: 36°F
Visibility: 4 Miles
Pressure: 29.97 in.
Flight Rule: MVFR
Wind Data
5 MPH
140° Southeast
Cloud Level(s): Solid Overcast at 2600ft
Current Conditions at
CAIRO - (KCIR)
36°
Cloudy
as of 3:55 AM CST
Rel. Humidity: 100%
Dew Point: 36°F
Visibility: 2 Miles
Pressure: 29.99 in.
Flight Rule: IFR
Wind Data
Calm
Cloud Level(s): Broken at 5500ft, Solid Overcast at 7500ft
10% chance of  Today Today... A slight chance of drizzle. Patchy fog before 9am. Otherwise, mostly cloudy, with a high near 46. Light and variable wind becoming north 5 to 10 mph in the morning.

Cloudy on Tonight Tonight... Cloudy, with a low around 27. North wind around 10 mph.

Mostly Cloudy on Monday Monday... Mostly cloudy, then gradually becoming sunny, with a high near 38. North wind 5 to 8 mph becoming calm in the afternoon.

Mostly Clear on Monday Night Monday Night... Mostly clear, with a low around 26. Calm wind becoming south southwest 5 to 9 mph after midnight.

Mostly Sunny on Tuesday Tuesday... Mostly sunny, with a high near 48. South southwest wind 10 to 14 mph, with gusts as high as 24 mph.

Mostly Cloudy on Tuesday Night Tuesday Night... Mostly cloudy, with a low around 42. South southwest wind around 15 mph, with gusts as high as 25 mph.

Partly Sunny on Wednesday Wednesday... Partly sunny, with a high near 51. Southwest wind 7 to 14 mph becoming northwest in the afternoon. Winds could gust as high as 22 mph.

10% chance of rain Wednesday Night Wednesday Night... A slight chance of rain. Mostly cloudy, with a low around 30. Northwest wind around 6 mph becoming light and variable.

20% chance of rain Thursday Thursday... A chance of rain. Mostly cloudy, with a high near 41. East wind 6 to 8 mph becoming north in the afternoon.

10% chance of rain Thursday Night Thursday Night... A slight chance of rain before midnight. Mostly cloudy, with a low around 21. North northwest wind 6 to 10 mph.

Partly Sunny on Friday Friday... Partly sunny, with a high near 30. North northwest wind around 11 mph, with gusts as high as 20 mph.

Cloudy on Friday Night Friday Night... Partly cloudy, with a low around 10. North northwest wind around 9 mph.

Mostly Sunny on Saturday Saturday... Mostly sunny, with a high near 25. Northwest wind 6 to 8 mph.

Current Radar Image


Sun Almanac for Jonesboro, Illinois
Sunrise: 06:59 AM
Sunset: 4:39 PM
Civil Sunrise:06:30 AM
Civil Sunset: 5:08 PM
Nautical Sunrise: 05:57 AM
Nautical Sunset: 5:40 PM
Astro Sunrise: 05:25 AM
Astro Sunset: 6:12 PM
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