Knapp, Illinois Weather
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Weather Forecast for Knapp, Illinois : Sangamon County
Issued: 7:40 pm CDT Jul 30, 2025 Latitude: 39.7147733 Longitude: -89.8167708 View on Google Maps

MouseOver for Detail Forecast
Tonight Thursday Friday Saturday Sunday Monday Tuesday Wednesday
40% chance of thunderstorms on Tonight 30% chance of thunderstorms on Thursday Sunny on Friday Mostly Sunny on Saturday Mostly Sunny on Sunday Partly Sunny on Monday 20% chance of thunderstorms on Tuesday Mostly Sunny on Wednesday
Low: 70°F High: 76°F High: 77°F High: 77°F High: 78°F High: 81°F High: 81°F High: 84°F
Low: 60°F Low: 56°F Low: 58°F Low: 61°F Low: 64°F Low: 66°F  
Thunderstorms Thunderstorms Sunny Mostly Sunny Mostly Sunny Partly Sunny Thunderstorms Mostly Sunny
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Current Conditions at
SPRINGFIELD - (KSPI)
79°
Mostly Cloudy
Light Rain
as of 6:52 PM CDST
Rel. Humidity: 88%
Dew Point: 75°F
Visibility: 7 Miles
Pressure: 30.00 in.
Flight Rule: VFR
Wind Data
Calm
Cloud Level(s): Few at 3900ft, Scattered at 7500ft, Broken at 12000ft
Current Conditions at
JACKSONVILLE MUNICIPAL - (KIJX)
77°
Cloudy
as of 7:30 PM CDST
Rel. Humidity: 94%
Dew Point: 75°F
Visibility: 10 Miles
Pressure: 30.01 in.
Flight Rule: VFR
Wind Data
Calm
Cloud Level(s): Solid Overcast at 7000ft
Current Conditions at
LITCHFIELD MUNI ARP - (K3LF)
79°
Clear
as of 7:35 PM CDST
Rel. Humidity: 83%
Dew Point: 73°F
Visibility: 10 Miles
Pressure: 30.01 in.
Flight Rule: VFR
Wind Data
5 MPH
310° Northwest
Cloud Level(s): Clear
40% chance of thunderstorms Tonight Tonight... A chance of showers and thunderstorms. Mostly cloudy, with a low around 70. West northwest wind 5 to 7 mph becoming east northeast in the evening. Chance of precipitation is 40%.

30% chance of thunderstorms Thursday Thursday... A 30 percent chance of showers and thunderstorms, mainly between 7am and 1pm. Cloudy, then gradually becoming mostly sunny, with a high near 76. North northeast wind 9 to 14 mph, with gusts as high as 21 mph.

Cloudy on Thursday Night Thursday Night... Partly cloudy, with a low around 60. North northeast wind 9 to 13 mph, with gusts as high as 20 mph.

Sunny on Friday Friday... Sunny, with a high near 77. Northeast wind 9 to 13 mph, with gusts as high as 18 mph.

Cloudy on Friday Night Friday Night... Partly cloudy, with a low around 56. Northeast wind 6 to 9 mph, with gusts as high as 15 mph.

Mostly Sunny on Saturday Saturday... Mostly sunny, with a high near 77. East northeast wind 6 to 8 mph.

Cloudy on Saturday Night Saturday Night... Partly cloudy, with a low around 58. East northeast wind around 6 mph.

Mostly Sunny on Sunday Sunday... Mostly sunny, with a high near 78.

Cloudy on Sunday Night Sunday Night... Partly cloudy, with a low around 61.

Partly Sunny on Monday Monday... Partly sunny, with a high near 81.

Mostly Cloudy on Monday Night Monday Night... Mostly cloudy, with a low around 64.

20% chance of thunderstorms Tuesday Tuesday... A chance of showers and thunderstorms. Mostly sunny, with a high near 81.

Mostly Clear on Tuesday Night Tuesday Night... Mostly clear, with a low around 66.

Mostly Sunny on Wednesday Wednesday... Mostly sunny, with a high near 84.

Current Radar Image


Sun Almanac for Knapp, Illinois
Sunrise: 05:57 AM
Sunset: 8:14 PM
Civil Sunrise:05:27 AM
Civil Sunset: 8:45 PM
Nautical Sunrise: 04:50 AM
Nautical Sunset: 9:22 PM
Astro Sunrise: 04:09 AM
Astro Sunset: 10:03 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.