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New Salem, Illinois Weather Forecast
New Salem, Illinois Weather
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Weather Forecast for New Salem, Illinois : Menard County
Issued: 9:36 pm CST Jan 20, 2026 Latitude: 39.9789377 Longitude: -89.843998 View on Google Maps

MouseOver for Detail Forecast
Tonight Wednesday Thursday Friday Saturday Sunday Monday Tuesday
Mostly Cloudy on Tonight Partly Sunny on Wednesday Partly Sunny on Thursday Partly Sunny on Friday 30% chance of snow on Saturday Mostly Sunny on Sunday Mostly Sunny on Monday Mostly Sunny on Tuesday
Low: 26°F High: 39°F High: 31°F High: 6 °F High: 12°F High: 18°F High: 22°F High: 31°F
Low: 19°F Low: 1 °F Low: -3°F Low: 4°F Low: 3°F Low: 8°F  
Mostly Cloudy Partly Sunny Partly Sunny Partly Sunny Snow Mostly Sunny Mostly Sunny Mostly Sunny
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Current Conditions at
SPRINGFIELD - (KSPI)
30°
Feels like 18°F
Clear
as of 9:52 PM CST
Rel. Humidity: 39%
Dew Point: 9°F
Visibility: 10 Miles
Pressure: 30.15 in.
Flight Rule: VFR
Wind Data
18 MPH
Gust: 31 MPH
180° South
Cloud Level(s): Clear
Mostly Cloudy on Tonight Tonight... Mostly cloudy, with a low around 26. South wind around 15 mph, with gusts as high as 26 mph.

Partly Sunny on Wednesday Wednesday... Partly sunny, then gradually becoming sunny, with a high near 39. West wind 11 to 14 mph, with gusts as high as 23 mph.

Cloudy on Wednesday Night Wednesday Night... Partly cloudy, with a low around 19. Southwest wind 8 to 14 mph becoming west northwest after midnight. Winds could gust as high as 25 mph.

Partly Sunny on Thursday Thursday... Partly sunny, with a high near 31. West northwest wind 5 to 8 mph, with gusts as high as 15 mph.

Mostly Cloudy on Thursday Night Thursday Night... Mostly cloudy, with a low around 1. Northwest wind 5 to 15 mph, with gusts as high as 24 mph.

Partly Sunny on Friday Friday... Partly sunny and cold, with a high near 6. North wind 11 to 15 mph, with gusts as high as 24 mph.

Mostly Cloudy on Friday Night Friday Night... Mostly cloudy, with a low around -3. North northeast wind around 10 mph, with gusts as high as 20 mph.

30% chance of snow Saturday Saturday... A 30 percent chance of snow after noon. Mostly cloudy, with a high near 12.

30% chance of snow Saturday Night Saturday Night... A 30 percent chance of snow before midnight. Mostly cloudy, with a low around 4.

Mostly Sunny on Sunday Sunday... Mostly sunny, with a high near 18.

Cloudy on Sunday Night Sunday Night... Partly cloudy, with a low around 3.

Mostly Sunny on Monday Monday... Mostly sunny, with a high near 22.

Mostly Clear on Monday Night Monday Night... Mostly clear, with a low around 8.

Mostly Sunny on Tuesday Tuesday... Mostly sunny, with a high near 31.

Sun Almanac for New Salem, Illinois
Sunrise: 07:17 AM
Sunset: 5:04 PM
Civil Sunrise:06:47 AM
Civil Sunset: 5:34 PM
Nautical Sunrise: 06:14 AM
Nautical Sunset: 6:07 PM
Astro Sunrise: 05:42 AM
Astro Sunset: 6:39 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.