Harristown, Illinois Weather
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Weather Forecast for Harristown, Illinois : Macon County
Issued: 2:56 am CDT Jun 4, 2025 Latitude: 39.8539279 Longitude: -89.0839704 View on Google Maps

MouseOver for Detail Forecast
Overnight Wednesday Thursday Friday Saturday Sunday Monday Tuesday
40% chance of thunderstorms on Overnight 90% chance of thunderstorms on Wednesday Partly Sunny on Thursday 60% chance of thunderstorms on Friday Mostly Sunny on Saturday 40% chance of rain on Sunday Sunny on Monday Mostly Sunny on Tuesday
Low: 68°F High: 75°F High: 78°F High: 78°F High: 77°F High: 80°F High: 78°F High: 79°F
Low: 62°F Low: 62°F Low: 60°F Low: 58°F Low: 61°F Low: 56°F  
Thunderstorms Thunderstorms Partly Sunny Thunderstorms Mostly Sunny Rain Sunny Mostly Sunny
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Current Conditions at
DECATUR - (KDEC)
77°
Cloudy
as of 4:37 AM CDST
Rel. Humidity: 65%
Dew Point: 64°F
Visibility: 10 Miles
Pressure: 29.91 in.
Flight Rule: MVFR
Wind Data
18 MPH
Gust: 30 MPH
220° Southwest
Cloud Level(s): Solid Overcast at 2900ft
Current Conditions at
LOGAN COUNTY AIRPORT - (KAAA)
70°
Cloudy
Light Rain
as of 4:35 AM CDST
Rel. Humidity: 100%
Dew Point: 70°F
Visibility: 7 Miles
Pressure: 29.90 in.
Flight Rule: MVFR
Wind Data
Calm
Cloud Level(s): Solid Overcast at 1900ft
Current Conditions at
TAYLORVILLE MUNICIPAL - (KTAZ)
70°
Cloudy
Drizzle
as of 4:43 AM CDST
Rel. Humidity: 88%
Dew Point: 66°F
Visibility: 7 Miles
Pressure: 29.94 in.
Flight Rule: VFR
Wind Data
Calm
Cloud Level(s): Scattered at 900ft, Broken at 8000ft, Solid Overcast at 9000ft
Current Conditions at
BLOOMINGTON - (KBMI)
68°
Cloudy
Light Rain
as of 4:44 AM CDST
Rel. Humidity: 100%
Dew Point: 68°F
Visibility: 10 Miles
Pressure: 29.91 in.
Flight Rule: MVFR
Wind Data
3 MPH
250° West
Cloud Level(s): Solid Overcast at 2800ft
40% chance of thunderstorms Overnight Overnight... A 40 percent chance of showers and thunderstorms. Cloudy, with a low around 68. South southwest wind around 15 mph, with gusts as high as 24 mph.
90% chance of thunderstorms Wednesday Wednesday... Showers and possibly a thunderstorm. High near 75. West southwest wind 10 to 14 mph, with gusts as high as 21 mph. Chance of precipitation is 90%. New rainfall amounts between a half and three quarters of an inch possible.
70% chance of thunderstorms Wednesday Night Wednesday Night... Showers likely and possibly a thunderstorm before 11pm, then a chance of showers and thunderstorms after 11pm. Cloudy, with a low around 62. Northwest wind around 7 mph becoming northeast after midnight. Chance of precipitation is 70%. New rainfall amounts between a half and three quarters of an inch possible.
Partly Sunny on Thursday Thursday... Partly sunny, with a high near 78. Northeast wind around 8 mph.
30% chance of rain Thursday Night Thursday Night... A 30 percent chance of showers after 1am. Mostly cloudy, with a low around 62. Northeast wind around 6 mph.
60% chance of thunderstorms Friday Friday... A chance of showers before 10am, then a chance of showers and thunderstorms between 10am and 1pm, then showers likely after 1pm. Mostly cloudy, with a high near 78. East wind around 7 mph becoming west in the afternoon. Chance of precipitation is 60%. New rainfall amounts between a quarter and half of an inch possible.
Cloudy on Friday Night Friday Night... Partly cloudy, with a low around 60. North wind around 7 mph.
Mostly Sunny on Saturday Saturday... Mostly sunny, with a high near 77.
Cloudy on Saturday Night Saturday Night... Partly cloudy, with a low around 58.
40% chance of rain Sunday Sunday... A 40 percent chance of showers after 1pm. Mostly sunny, with a high near 80.
20% chance of thunderstorms Sunday Night Sunday Night... A chance of showers and thunderstorms. Partly cloudy, with a low around 61.
Sunny on Monday Monday... Sunny, with a high near 78.
Mostly Clear on Monday Night Monday Night... Mostly clear, with a low around 56.
Mostly Sunny on Tuesday Tuesday... Mostly sunny, with a high near 79.
Current Radar Image


Sun Almanac for Harristown, Illinois
Sunrise: 05:29 AM
Sunset: 8:21 PM
Civil Sunrise:04:56 AM
Civil Sunset: 8:53 PM
Nautical Sunrise: 04:16 AM
Nautical Sunset: 9:34 PM
Astro Sunrise: 03:29 AM
Astro Sunset: 10:21 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.