Frankfort, Illinois Weather
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Weather Forecast for Frankfort, Illinois : Franklin County
Issued: 11:32 pm CDT Jul 5, 2025 Latitude: 37.9000495 Longitude: -88.9022902 View on Google Maps

MouseOver for Detail Forecast
Overnight Sunday Monday Tuesday Wednesday Thursday Friday Saturday
Mostly Clear on Overnight 40% chance of thunderstorms on Sunday 60% chance of thunderstorms on Monday 30% chance of thunderstorms on Tuesday 20% chance of thunderstorms on Wednesday 20% chance of thunderstorms on Thursday 10% chance of thunderstorms on Friday 20% chance of thunderstorms on Saturday
Low: 72°F High: 92°F High: 90°F High: 91°F High: 91°F High: 90°F High: 91°F High: 90°F
Low: 73°F Low: 73°F Low: 73°F Low: 72°F Low: 72°F Low: 73°F  
Mostly Clear Thunderstorms Thunderstorms Thunderstorms Thunderstorms Thunderstorms Thunderstorms Thunderstorms
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Current Conditions at
MARION - (KMWA)
73°
Clear
as of 12:35 AM CDST
Rel. Humidity: 88%
Dew Point: 70°F
Visibility: 10 Miles
Pressure: 30.00 in.
Flight Rule: VFR
Wind Data
Calm
Cloud Level(s): Clear
Current Conditions at
HARRISBURG-RALEIGH - (KHSB)
73°
Clear
as of 12:35 AM CDST
Rel. Humidity: 94%
Dew Point: 72°F
Visibility: 7 Miles
Pressure: 29.99 in.
Flight Rule: VFR
Wind Data
Calm
Cloud Level(s): Clear
Current Conditions at
CARBONDALE - (KMDH)
72°
Clear
as of 11:52 PM CDST
Rel. Humidity: 94%
Dew Point: 70°F
Visibility: 8 Miles
Pressure: 29.98 in.
Flight Rule: VFR
Wind Data
3 MPH
160° South
Cloud Level(s): Clear
Current Conditions at
MT VERNON - (KMVN)
70°
Clear
as of 11:56 PM CDST
Rel. Humidity: 100%
Dew Point: 70°F
Visibility: 10 Miles
Pressure: 29.99 in.
Flight Rule: VFR
Wind Data
Calm
Cloud Level(s): Clear
Mostly Clear on Overnight Overnight... Mostly clear, with a low around 72. Calm wind.
40% chance of thunderstorms Sunday Sunday... A 40 percent chance of showers and thunderstorms, mainly after 1pm. Mostly sunny, with a high near 92. Southwest wind 5 to 8 mph.
40% chance of thunderstorms Sunday Night Sunday Night... A 40 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 73. Southwest wind around 5 mph becoming calm in the evening.
60% chance of thunderstorms Monday Monday... Showers and thunderstorms likely, mainly after 1pm. Partly sunny, with a high near 90. Calm wind becoming west around 6 mph in the morning. Chance of precipitation is 60%.
30% chance of thunderstorms Monday Night Monday Night... A 30 percent chance of showers and thunderstorms, mainly before 1am. Partly cloudy, with a low around 73. Light southwest wind.
30% chance of thunderstorms Tuesday Tuesday... A 30 percent chance of showers and thunderstorms after 1pm. Partly sunny, with a high near 91. Light west southwest wind.
20% chance of thunderstorms Tuesday Night Tuesday Night... A 20 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 73. Calm wind.
20% chance of thunderstorms Wednesday Wednesday... A chance of showers and thunderstorms, mainly after 1pm. Partly sunny, with a high near 91. Light west southwest wind.
20% chance of thunderstorms Wednesday Night Wednesday Night... A chance of showers and thunderstorms. Mostly cloudy, with a low around 72. Light southwest wind.
20% chance of thunderstorms Thursday Thursday... A chance of showers and thunderstorms, mainly after 1pm. Partly sunny, with a high near 90. Calm wind becoming west southwest around 5 mph in the afternoon.
20% chance of thunderstorms Thursday Night Thursday Night... A chance of showers and thunderstorms. Mostly cloudy, with a low around 72. Light and variable wind.
10% chance of thunderstorms Friday Friday... A slight chance of showers and thunderstorms. Mostly sunny, with a high near 91. Calm wind becoming south southwest around 5 mph in the afternoon.
20% chance of thunderstorms Friday Night Friday Night... A chance of showers and thunderstorms. Partly cloudy, with a low around 73. Light south southwest wind.
20% chance of thunderstorms Saturday Saturday... A chance of showers and thunderstorms. Partly sunny, with a high near 90. West southwest wind 5 to 7 mph.
Current Radar Image


Sun Almanac for Frankfort, Illinois
Sunrise: 05:40 AM
Sunset: 8:21 PM
Civil Sunrise:05:09 AM
Civil Sunset: 8:52 PM
Nautical Sunrise: 04:30 AM
Nautical Sunset: 9:31 PM
Astro Sunrise: 03:47 AM
Astro Sunset: 10:14 PM
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