Harper, Illinois Weather
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Weather Forecast for Harper, Illinois : White County
Issued: 11:03 pm CDT Jun 5, 2025 Latitude: 38.1839356 Longitude: -88.0425337 View on Google Maps

MouseOver for Detail Forecast
Tonight Friday Saturday Sunday Monday Tuesday Wednesday Thursday
Mostly Cloudy on Tonight 80% chance of thunderstorms on Friday 60% chance of thunderstorms on Saturday Mostly Sunny on Sunday 10% chance of thunderstorms on Monday Sunny on Tuesday Mostly Sunny on Wednesday 10% chance of on Thursday
Low: 68°F High: 80°F High: 80°F High: 82°F High: 79°F High: 78°F High: 82°F High: 83°F
Low: 65°F Low: 66°F Low: 63°F Low: 60°F Low: 58°F Low: 61°F  
Mostly Cloudy Thunderstorms Thunderstorms Mostly Sunny Thunderstorms Sunny Mostly Sunny Partly Sunny
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Current Conditions at
FAIRFIELD MUNICIPAL ARPT - (KFWC)
70°
Clear
as of 10:55 PM CDST
Rel. Humidity: 94%
Dew Point: 68°F
Visibility: 10 Miles
Pressure: 30.01 in.
Flight Rule: VFR
Wind Data
3 MPH
250° West
Cloud Level(s): Clear
Current Conditions at
EVANSVILLE - (KEVV)
72°
Clear
as of 10:54 PM CDST
Rel. Humidity: 94%
Dew Point: 70°F
Visibility: 10 Miles
Pressure: 29.98 in.
Flight Rule: VFR
Wind Data
3 MPH
080° East
Cloud Level(s): Clear
Current Conditions at
HENDERSON CITY - (KEHR)
72°
Clear
as of 10:56 PM CDST
Rel. Humidity: 94%
Dew Point: 70°F
Visibility: 10 Miles
Pressure: 30.00 in.
Flight Rule: VFR
Wind Data
Calm
Cloud Level(s): Clear
Current Conditions at
MOUNT CARMEL MUNI - (KAJG)
73°
Clear
as of 10:55 PM CDST
Rel. Humidity: 94%
Dew Point: 72°F
Visibility: 10 Miles
Pressure: 29.99 in.
Flight Rule: VFR
Wind Data
Calm
Cloud Level(s): Clear
Mostly Cloudy on Tonight Tonight... Mostly cloudy, with a low around 68. Calm wind.
80% chance of thunderstorms Friday Friday... A chance of showers and thunderstorms before 2pm, then showers and possibly a thunderstorm between 2pm and 4pm, then a chance of showers and thunderstorms after 4pm. High near 80. Calm wind becoming southwest around 6 mph in the afternoon. Chance of precipitation is 80%.
70% chance of thunderstorms Friday Night Friday Night... Showers and thunderstorms likely, mainly before 10pm. Mostly cloudy, with a low around 65. Northeast wind around 5 mph becoming calm in the evening. Chance of precipitation is 70%.
60% chance of thunderstorms Saturday Saturday... A chance of showers, then showers likely and possibly a thunderstorm after 1pm. Mostly cloudy, with a high near 80. Calm wind becoming south around 6 mph in the afternoon. Chance of precipitation is 60%.
50% chance of thunderstorms Saturday Night Saturday Night... A chance of showers and thunderstorms before 4am, then a slight chance of showers. Mostly cloudy, with a low around 66. Southwest wind 3 to 6 mph. Chance of precipitation is 50%.
Mostly Sunny on Sunday Sunday... Mostly sunny, with a high near 82. West wind 6 to 8 mph.
20% chance of thunderstorms Sunday Night Sunday Night... A 20 percent chance of showers and thunderstorms after 1am. Partly cloudy, with a low around 63. West wind 3 to 6 mph.
10% chance of thunderstorms Monday Monday... A slight chance of showers, with thunderstorms also possible after 1pm. Partly sunny, with a high near 79. West wind 3 to 8 mph.
10% chance of thunderstorms Monday Night Monday Night... A slight chance of showers and thunderstorms before 1am. Partly cloudy, with a low around 60. West southwest wind around 5 mph becoming calm in the evening.
Sunny on Tuesday Tuesday... Sunny, with a high near 78. West northwest wind 3 to 7 mph.
Mostly Clear on Tuesday Night Tuesday Night... Mostly clear, with a low around 58. Light north wind.
Mostly Sunny on Wednesday Wednesday... Mostly sunny, with a high near 82. Light and variable wind.
Cloudy on Wednesday Night Wednesday Night... Partly cloudy, with a low around 61. Calm wind.
10% chance of Thursday Thursday... A slight chance of showers. Partly sunny, with a high near 83. Calm wind becoming south southeast around 6 mph in the morning.
Current Radar Image


Sun Almanac for Harper, Illinois
Sunrise: 05:29 AM
Sunset: 8:13 PM
Civil Sunrise:04:58 AM
Civil Sunset: 8:44 PM
Nautical Sunrise: 04:19 AM
Nautical Sunset: 9:23 PM
Astro Sunrise: 03:35 AM
Astro Sunset: 10:07 PM
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