Frankfort, Illinois Weather

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No Watches or Warnings for Frankfort

Issued: 8:22 am CST Jan 12, 2026 Latitude: 37.9000495 Longitude: -88.9022902 View on Google Maps

Today	Tonight	Tuesday	Wednesday	Thursday	Friday	Saturday	Sunday

High: 51°F	Low: 34°F	High: 59°F	High: 45°F	High: 32°F	High: 44°F	High: 33°F	High: 29°F
High: 51°F	Low: 34°F	Low: 40°F	Low: 19°F	Low: 23°F	Low: 22°F	Low: 12°F
Sunny	Mostly Clear	Sunny	Rain & Snow	Sunny	Partly Sunny	Partly Sunny	Mostly Sunny

Weather Maps Navigation

Current Conditions at
MARION - (KMWA)

39°

Feels like 32°F

Clear

as of 9:47 AM CST

Rel. Humidity: 44%
Dew Point: 19°F
Visibility: 10 Miles
Pressure: 30.39 in.
Flight Rule: VFR

Wind Data
12 MPH
230° Southwest

Cloud Level(s): Clear

Current Conditions at
HARRISBURG-RALEIGH - (KHSB)

39°

Feels like 31°F

Clear

as of 10:15 AM CST

Rel. Humidity: 44%
Dew Point: 19°F
Visibility: 10 Miles
Pressure: 30.40 in.
Flight Rule: VFR

Wind Data
13 MPH
220° Southwest

Cloud Level(s): Clear

Current Conditions at
CARBONDALE - (KMDH)

39°

Feels like 30°F

Clear

as of 9:52 AM CST

Rel. Humidity: 44%
Dew Point: 19°F
Visibility: 10 Miles
Pressure: 30.38 in.
Flight Rule: VFR

Wind Data
15 MPH
210° Southwest

Cloud Level(s): Clear

Current Conditions at
MT VERNON - (KMVN)

39°

Feels like 30°F

Clear

as of 9:56 AM CST

Rel. Humidity: 51%
Dew Point: 23°F
Visibility: 10 Miles
Pressure: 30.36 in.
Flight Rule: VFR

Wind Data
15 MPH
210° Southwest

Cloud Level(s): Clear

	Today... Sunny, with a high near 51. Southwest wind 8 to 13 mph, with gusts as high as 21 mph.

	Tonight... Mostly clear, with a low around 34. South southwest wind 6 to 8 mph.

	Tuesday... Sunny, with a high near 59. Southwest wind 9 to 14 mph, with gusts as high as 22 mph.

	Tuesday Night... A 40 percent chance of showers. Mostly cloudy, with a low around 40. Southwest wind 6 to 10 mph becoming west northwest after midnight.

	Wednesday... A slight chance of rain showers before 3pm, then a slight chance of rain and snow showers. Mostly cloudy, with a high near 45. Northwest wind 7 to 17 mph, with gusts as high as 26 mph. Chance of precipitation is 20%.

	Wednesday Night... Mostly cloudy, with a low around 19. North northwest wind 13 to 18 mph, with gusts as high as 25 mph.

	Thursday... Sunny, with a high near 32. North northwest wind 5 to 11 mph, with gusts as high as 20 mph.

	Thursday Night... Partly cloudy, with a low around 23. Light and variable wind becoming south southwest 5 to 9 mph in the evening.

	Friday... Partly sunny, with a high near 44. South southwest wind 9 to 14 mph, with gusts as high as 21 mph.

	Friday Night... Mostly cloudy, with a low around 22. West wind 6 to 9 mph.

	Saturday... Partly sunny, with a high near 33. West northwest wind 8 to 11 mph, with gusts as high as 21 mph.

	Saturday Night... Partly cloudy, with a low around 12. West northwest wind 7 to 9 mph.

	Sunday... Mostly sunny, with a high near 29. West northwest wind 8 to 13 mph, with gusts as high as 20 mph.

Current Radar Image

Sun Almanac for Frankfort, Illinois

Sunrise: 07:11 AM
Sunset: 4:57 PM
Civil Sunrise:06:42 AM
Civil Sunset: 5:26 PM
Nautical Sunrise: 06:10 AM
Nautical Sunset: 5:58 PM
Astro Sunrise: 05:38 AM
Astro Sunset: 6:30 PM

Illinois' Current Temperatures

Illinois' Satellite Image Illinois Satellite Image

Illinois' Current Wind Direction

National Summary

of upper and lower values of current conditions amongst 7202 locations
in the contiguous United States

Stanley Ranger Stn, Idaho

# Locations Reporting Snow

# Locations Reporting Rain

# Locations Reporting Fog

Average Temperature in the Contiguous USA

38°

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visitors since 1999