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Johannisburg, Illinois Weather Forecast
Johannisburg, Illinois Weather
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Weather Forecast for Johannisburg, Illinois : Washington County
Issued: 3:16 am CST Dec 7, 2025 Latitude: 38.3844936 Longitude: -89.6531498 View on Google Maps

MouseOver for Detail Forecast
Today Tonight Monday Tuesday Wednesday Thursday Friday Saturday
20% chance of  on Today Cloudy on Tonight Mostly Cloudy on Monday Mostly Sunny on Tuesday Partly Sunny on Wednesday 30% chance of rain & snow on Thursday Mostly Sunny on Friday Partly Sunny on Saturday
High: 43°F Low: 24°F High: 35°F High: 52°F High: 50°F High: 38°F High: 26°F High: 22°F
Low: 26°F Low: 41°F Low: 28°F Low: 18°F Low: 7°F  
Cloudy Cloudy Mostly Cloudy Mostly Sunny Partly Sunny Rain & Snow Mostly Sunny Partly Sunny
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Current Conditions at
SCOTT AFB - (KBLV)
39°
Feels like 33°F
Cloudy
Mist
as of 3:55 AM CST
Rel. Humidity: 93%
Dew Point: 37°F
Visibility: 5 Miles
Pressure: 29.93 in.
Flight Rule: IFR
Wind Data
9 MPH
210° Southwest
Cloud Level(s): Solid Overcast at 800ft
Current Conditions at
SPARTA - (KSAR)
37°
Cloudy
as of 3:55 AM CST
Rel. Humidity: 100%
Dew Point: 37°F
Visibility: 7 Miles
Pressure: 29.96 in.
Flight Rule: IFR
Wind Data
3 MPH
190° South
Cloud Level(s): Solid Overcast at 700ft
Current Conditions at
EAST ST LOUIS - (KCPS)
39°
Cloudy
as of 3:53 AM CST
Rel. Humidity: 86%
Dew Point: 36°F
Visibility: 8 Miles
Pressure: 29.93 in.
Flight Rule: MVFR
Wind Data
5 MPH
160° South
Cloud Level(s): Solid Overcast at 1500ft
Current Conditions at
CENTRALIA MUNICIPAL ARPT - (KENL)
Cloudy
as of 3:55 AM CST
Wind Data
Calm
20% chance of  Today Today... A chance of sprinkles before noon. Cloudy, with a high near 43. South wind 5 to 13 mph becoming north in the afternoon. Winds could gust as high as 20 mph.

Cloudy on Tonight Tonight... Cloudy, with a low around 24. North wind 8 to 13 mph, with gusts as high as 21 mph.

Mostly Cloudy on Monday Monday... Mostly cloudy, then gradually becoming sunny, with a high near 35. North wind around 6 mph becoming calm in the morning.

Cloudy on Monday Night Monday Night... Partly cloudy, with a low around 26. Light southeast wind becoming south 6 to 11 mph in the evening. Winds could gust as high as 20 mph.

Mostly Sunny on Tuesday Tuesday... Mostly sunny, with a high near 52. Southwest wind 13 to 15 mph, with gusts as high as 23 mph.

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

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

20% chance of rain & snow Wednesday Night Wednesday Night... A slight chance of rain before midnight, then a slight chance of rain and snow. Mostly cloudy, with a low around 28. Chance of precipitation is 20%.

30% chance of rain & snow Thursday Thursday... A chance of rain and snow, mainly before noon. Mostly cloudy, with a high near 38. Chance of precipitation is 30%.

20% chance of rain & snow Thursday Night Thursday Night... A slight chance of rain and snow before midnight. Mostly cloudy, with a low around 18. Chance of precipitation is 20%.

Mostly Sunny on Friday Friday... Mostly sunny, with a high near 26.

Cloudy on Friday Night Friday Night... Partly cloudy, with a low around 7.

Partly Sunny on Saturday Saturday... Partly sunny, with a high near 22.

Current Radar Image


Sun Almanac for Johannisburg, Illinois
Sunrise: 07:03 AM
Sunset: 4:38 PM
Civil Sunrise:06:33 AM
Civil Sunset: 5:07 PM
Nautical Sunrise: 06:00 AM
Nautical Sunset: 5:40 PM
Astro Sunrise: 05:28 AM
Astro Sunset: 6:12 PM
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