Herrin Junction, Illinois Weather
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Weather Forecast for Herrin Junction, Illinois : Williamson County
Issued: 2:46 am CDT Sep 16, 2025 Latitude: 37.8242166 Longitude: -89.0111846 View on Google Maps

MouseOver for Detail Forecast
Overnight Tuesday Wednesday Thursday Friday Saturday Sunday Monday
Mostly Clear on Overnight Sunny on Tuesday Sunny on Wednesday Sunny on Thursday 10% chance of on Friday 20% chance of thunderstorms on Saturday 20% chance of rain on Sunday 20% chance of thunderstorms on Monday
Low: 67°F High: 94°F High: 93°F High: 95°F High: 91°F High: 85°F High: 86°F High: 86°F
Low: 64°F Low: 63°F Low: 66°F Low: 65°F Low: 65°F Low: 66°F  
Mostly Clear Sunny Sunny Sunny Partly Sunny Thunderstorms Rain Thunderstorms
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Current Conditions at
MARION - (KMWA)
64°
Clear
as of 3:15 AM CDST
Rel. Humidity: 93%
Dew Point: 63°F
Visibility: 10 Miles
Pressure: 30.10 in.
Flight Rule: VFR
Wind Data
Calm
Cloud Level(s): Clear
Current Conditions at
CARBONDALE - (KMDH)
66°
Clear
Mist
as of 2:52 AM CDST
Rel. Humidity: 93%
Dew Point: 64°F
Visibility: 5 Miles
Pressure: 30.08 in.
Flight Rule: MVFR
Wind Data
3 MPH
350° North
Cloud Level(s): Clear
Current Conditions at
HARRISBURG-RALEIGH - (KHSB)
68°
Clear
as of 3:15 AM CDST
Rel. Humidity: 77%
Dew Point: 61°F
Visibility: 10 Miles
Pressure: 30.09 in.
Flight Rule: VFR
Wind Data
Calm
Cloud Level(s): Clear
Current Conditions at
MT VERNON - (KMVN)
66°
Clear
as of 2:56 AM CDST
Rel. Humidity: 93%
Dew Point: 64°F
Visibility: 10 Miles
Pressure: 30.10 in.
Flight Rule: VFR
Wind Data
5 MPH
010° North
Cloud Level(s): Clear
Mostly Clear on Overnight Overnight... Mostly clear, with a low around 67. Calm wind.
Sunny on Tuesday Tuesday... Sunny, with a high near 94. Calm wind becoming northeast around 6 mph in the afternoon.
Mostly Clear on Tuesday Night Tuesday Night... Mostly clear, with a low around 64. Calm wind.
Sunny on Wednesday Wednesday... Sunny, with a high near 93. Calm wind becoming east northeast around 5 mph in the afternoon.
Mostly Clear on Wednesday Night Wednesday Night... Mostly clear, with a low around 63. Light southeast wind.
Sunny on Thursday Thursday... Sunny, with a high near 95. Calm wind becoming south southeast around 6 mph in the afternoon.
Cloudy on Thursday Night Thursday Night... Partly cloudy, with a low around 66. Light south southeast wind.
10% chance of Friday Friday... A slight chance of showers after 1pm. Partly sunny, with a high near 91. Calm wind becoming south around 6 mph in the afternoon.
20% chance of thunderstorms Friday Night Friday Night... A chance of showers and thunderstorms. Mostly cloudy, with a low around 65. Light and variable wind.
20% chance of thunderstorms Saturday Saturday... A chance of showers and thunderstorms. Partly sunny, with a high near 85. Calm wind becoming south southwest around 6 mph in the morning.
10% chance of thunderstorms Saturday Night Saturday Night... A slight chance of showers and thunderstorms. Partly cloudy, with a low around 65. Calm wind.
20% chance of rain Sunday Sunday... A chance of showers. Mostly sunny, with a high near 86. Calm wind becoming south southwest 5 to 9 mph in the morning.
20% chance of thunderstorms Sunday Night Sunday Night... A chance of showers and thunderstorms. Mostly cloudy, with a low around 66. South southeast wind 3 to 6 mph.
20% chance of thunderstorms Monday Monday... A chance of showers and thunderstorms. Partly sunny, with a high near 86. South wind 5 to 9 mph.
Current Radar Image


Sun Almanac for Herrin Junction, Illinois
Sunrise: 06:39 AM
Sunset: 7:02 PM
Civil Sunrise:06:13 AM
Civil Sunset: 7:28 PM
Nautical Sunrise: 05:42 AM
Nautical Sunset: 7:59 PM
Astro Sunrise: 05:11 AM
Astro Sunset: 8:31 PM
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