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Nason, Illinois Weather Forecast
Nason, Illinois Weather
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Weather Forecast for Nason, Illinois : Jefferson County
Issued: 12:31 am CST Dec 14, 2025 Latitude: 38.1761609 Longitude: -88.9675689 View on Google Maps

MouseOver for Detail Forecast
Overnight Sunday Monday Tuesday Wednesday Thursday Friday Saturday
Mostly Clear on Overnight Sunny on Sunday Sunny on Monday Sunny on Tuesday Mostly Sunny on Wednesday Rain on Thursday Mostly Sunny on Friday 20% chance of  on Saturday
Low: 6 °F High: 15°F High: 36°F High: 47°F High: 53°F High: 59°F High: 42°F High: 57°F
Low: 6 °F Low: 24°F Low: 35°F Low: 43°F Low: 23°F Low: 33°F  
Mostly Clear Sunny Sunny Sunny Mostly Sunny Rain Mostly Sunny Partly Sunny
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Current Conditions at
MT VERNON - (KMVN)
Clear
as of 12:56 AM CST
Visibility: 10 Miles
Pressure: 30.49 in.
Flight Rule: VFR
Wind Data
6 MPH
Cloud Level(s): Clear
Current Conditions at
CENTRALIA MUNICIPAL ARPT - (KENL)
Cloudy
as of 1:20 AM CST
Wind Data
Calm
Current Conditions at
CARBONDALE - (KMDH)
12°
Feels like -4°F
Mostly Cloudy
as of 1:15 AM CST
Rel. Humidity: 78%
Dew Point: 7°F
Visibility: 10 Miles
Pressure: 30.50 in.
Flight Rule: MVFR
Wind Data
17 MPH
Gust: 28 MPH
320° Northwest
Cloud Level(s): Broken at 1900ft
Mostly Clear on Overnight Overnight... Mostly clear, with a low around 6. Wind chill values as low as -8. North northwest wind 9 to 13 mph, with gusts as high as 23 mph.

Sunny on Sunday Sunday... Sunny, with a high near 15. Wind chill values as low as -10. North wind 5 to 13 mph, with gusts as high as 22 mph.

Mostly Clear on Sunday Night Sunday Night... Mostly clear, with a low around 6. Wind chill values as low as -3. Calm wind becoming south 5 to 7 mph after midnight.

Sunny on Monday Monday... Sunny, with a high near 36. Wind chill values as low as -1. South southwest wind 6 to 14 mph, with gusts as high as 21 mph.

Mostly Clear on Monday Night Monday Night... Mostly clear, with a low around 24. South southwest wind 6 to 9 mph.

Sunny on Tuesday Tuesday... Sunny, with a high near 47. South southwest wind 6 to 10 mph.

Mostly Cloudy on Tuesday Night Tuesday Night... Mostly cloudy, with a low around 35. Southwest wind 6 to 9 mph.

Mostly Sunny on Wednesday Wednesday... Mostly sunny, with a high near 53. Southwest wind 6 to 8 mph.

20% chance of thunderstorms Wednesday Night Wednesday Night... A chance of showers and thunderstorms after midnight. Mostly cloudy, with a low around 43. South southeast wind 8 to 16 mph, with gusts as high as 28 mph.

Rain on Thursday Thursday... Showers likely, mainly before noon. Mostly cloudy, with a high near 59. South wind 11 to 17 mph becoming west northwest in the afternoon. Winds could gust as high as 28 mph.

Cloudy on Thursday Night Thursday Night... Partly cloudy, with a low around 23. West northwest wind 5 to 10 mph, with gusts as high as 18 mph.

Mostly Sunny on Friday Friday... Mostly sunny, with a high near 42. Northwest wind 5 to 8 mph becoming south southeast in the afternoon.

Cloudy on Friday Night Friday Night... Partly cloudy, with a low around 33. South wind 7 to 10 mph, with gusts as high as 18 mph.

20% chance of  Saturday Saturday... A chance of showers. Partly sunny, with a high near 57. South southwest wind 10 to 14 mph, with gusts as high as 21 mph.

Current Radar Image


Sun Almanac for Nason, Illinois
Sunrise: 07:05 AM
Sunset: 4:37 PM
Civil Sunrise:06:35 AM
Civil Sunset: 5:06 PM
Nautical Sunrise: 06:02 AM
Nautical Sunset: 5:39 PM
Astro Sunrise: 05:30 AM
Astro Sunset: 6:11 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.