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Harmony, Illinois Weather Forecast
Harmony, Illinois Weather
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Weather Forecast for Harmony, Illinois : Jefferson County
Issued: 1:46 am CST Dec 21, 2025 Latitude: 38.4072706 Longitude: -88.7928371 View on Google Maps

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Overnight Sunday Monday Tuesday Wednesday Christmas Day Friday Saturday
Mostly Cloudy on Overnight Sunny on Sunday Increasing Clouds on Monday Mostly Sunny on Tuesday Cloudy on Wednesday Mostly Cloudy on Christmas Day Mostly Sunny on Friday Mostly Cloudy on Saturday
Low: 28°F High: 43°F High: 51°F High: 62°F High: 66°F High: 69°F High: 60°F High: 56°F
Low: 28°F Low: 45°F Low: 44°F Low: 57°F Low: 52°F Low: 41°F  
Mostly Cloudy Sunny Increasing Clouds Mostly Sunny Cloudy Mostly Cloudy Mostly Sunny Mostly Cloudy
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Current Conditions at
MT VERNON - (KMVN)
34°
Clear
as of 1:56 AM CST
Rel. Humidity: 55%
Dew Point: 19°F
Visibility: 10 Miles
Pressure: 30.30 in.
Flight Rule: VFR
Wind Data
3 MPH
Cloud Level(s): Clear
Current Conditions at
CENTRALIA MUNICIPAL ARPT - (KENL)
Mostly Clear
as of 2:35 AM CST
Wind Data
Calm
Current Conditions at
SALEM-LECKRONE ARPT - (KSLO)
30°
Clear
as of 2:35 AM CST
Rel. Humidity: 68%
Dew Point: 21°F
Visibility: 10 Miles
Pressure: 30.32 in.
Flight Rule: VFR
Wind Data
3 MPH
350° North
Cloud Level(s): Clear
Current Conditions at
FLORA MUNICIPAL AIRPORT - (KFOA)
32°
Clear
as of 2:35 AM CST
Rel. Humidity: 63%
Dew Point: 21°F
Visibility: 10 Miles
Pressure: 30.33 in.
Flight Rule: VFR
Wind Data
8 MPH
340° North
Cloud Level(s): Clear
Mostly Cloudy on Overnight Overnight... Mostly cloudy, with a low around 28. North wind 3 to 5 mph.

Sunny on Sunday Sunday... Sunny, with a high near 43. Calm wind becoming northeast around 6 mph.

Mostly Clear on Sunday Night Sunday Night... Mostly clear, with a low around 28. Southeast wind 3 to 7 mph.

Increasing Clouds on Monday Monday... Increasing clouds, with a high near 51. South wind 6 to 9 mph.

20% chance of rain Monday Night Monday Night... A 20 percent chance of rain before midnight. Mostly cloudy, with a low around 45. Southwest wind around 7 mph.

Mostly Sunny on Tuesday Tuesday... Mostly sunny, with a high near 62. West wind 5 to 7 mph becoming light and variable in the afternoon.

Cloudy on Tuesday Night Tuesday Night... Partly cloudy, with a low around 44. Calm wind becoming east southeast around 5 mph after midnight.

Cloudy on Wednesday Wednesday... Cloudy, with a high near 66. East southeast wind 5 to 10 mph becoming south southwest in the afternoon.

Mostly Cloudy on Wednesday Night Wednesday Night... Mostly cloudy, with a low around 57. Southwest wind around 10 mph, with gusts as high as 20 mph.

Mostly Cloudy on Christmas Day Christmas Day... Mostly cloudy, with a high near 69. South southwest wind 9 to 13 mph, with gusts as high as 20 mph.

Cloudy on Thursday Night Thursday Night... Partly cloudy, with a low around 52. South southwest wind 8 to 10 mph becoming west after midnight. Winds could gust as high as 20 mph.

Mostly Sunny on Friday Friday... Mostly sunny, with a high near 60. West northwest wind 5 to 8 mph becoming north northeast in the afternoon.

Mostly Cloudy on Friday Night Friday Night... Mostly cloudy, with a low around 41. Light and variable wind becoming south southeast around 6 mph in the evening.

Mostly Cloudy on Saturday Saturday... Mostly cloudy, with a high near 56. South wind around 7 mph.

Current Radar Image


Sun Almanac for Harmony, Illinois
Sunrise: 07:09 AM
Sunset: 4:38 PM
Civil Sunrise:06:39 AM
Civil Sunset: 5:08 PM
Nautical Sunrise: 06:06 AM
Nautical Sunset: 5:41 PM
Astro Sunrise: 05:34 AM
Astro Sunset: 6:13 PM
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