Reader, Illinois Weather
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Weather Forecast for Reader, Illinois : Macoupin County
Issued: 2:21 am CDT Sep 16, 2025 Latitude: 39.3056022 Longitude: -90.0409405 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 Mostly Sunny on Thursday 30% chance of thunderstorms on Friday 30% chance of thunderstorms on Saturday 30% chance of thunderstorms on Sunday 20% chance of thunderstorms on Monday
Low: 62°F High: 91°F High: 91°F High: 92°F High: 85°F High: 84°F High: 84°F High: 85°F
Low: 61°F Low: 60°F Low: 64°F Low: 62°F Low: 62°F Low: 63°F  
Mostly Clear Sunny Sunny Mostly Sunny Thunderstorms Thunderstorms Thunderstorms Thunderstorms
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Current Conditions at
LITCHFIELD MUNI ARP - (K3LF)
66°
Clear
as of 3:15 AM CDST
Rel. Humidity: 77%
Dew Point: 59°F
Visibility: 10 Miles
Pressure: 30.14 in.
Flight Rule: VFR
Wind Data
3 MPH
090° East
Cloud Level(s): Clear
Current Conditions at
ALTON - (KALN)
64°
Clear
as of 3:15 AM CDST
Rel. Humidity: 93%
Dew Point: 63°F
Visibility: 10 Miles
Pressure: 30.12 in.
Flight Rule: VFR
Wind Data
Calm
Cloud Level(s): Clear
Current Conditions at
ST CHARLES - (KSET)
66°
Clear
as of 2:54 AM CDST
Rel. Humidity: 93%
Dew Point: 64°F
Visibility: 10 Miles
Pressure: 30.10 in.
Flight Rule: VFR
Wind Data
Calm
Cloud Level(s): Clear
Current Conditions at
JACKSONVILLE MUNICIPAL - (KIJX)
61°
Clear
as of 3:15 AM CDST
Rel. Humidity: 82%
Dew Point: 55°F
Visibility: 10 Miles
Pressure: 30.14 in.
Flight Rule: VFR
Wind Data
5 MPH
080° East
Cloud Level(s): Clear
Mostly Clear on Overnight Overnight... Mostly clear, with a low around 62. Light east wind.
Sunny on Tuesday Tuesday... Sunny, with a high near 91. Northeast wind 3 to 7 mph.
Mostly Clear on Tuesday Night Tuesday Night... Mostly clear, with a low around 61. East wind 5 to 7 mph.
Sunny on Wednesday Wednesday... Sunny, with a high near 91. Light east wind.
Mostly Clear on Wednesday Night Wednesday Night... Mostly clear, with a low around 60. Light east wind.
Mostly Sunny on Thursday Thursday... Mostly sunny, with a high near 92.
20% chance of rain Thursday Night Thursday Night... A 20 percent chance of showers after 1am. Partly cloudy, with a low around 64.
30% chance of thunderstorms Friday Friday... A 30 percent chance of showers and thunderstorms. Partly sunny, with a high near 85.
40% chance of thunderstorms Friday Night Friday Night... A 40 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 62.
30% chance of thunderstorms Saturday Saturday... A slight chance of showers, then a chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 84. Chance of precipitation is 30%.
20% chance of thunderstorms Saturday Night Saturday Night... A 20 percent chance of showers and thunderstorms. Partly cloudy, with a low around 62.
30% chance of thunderstorms Sunday Sunday... A 30 percent chance of showers and thunderstorms. Partly sunny, with a high near 84.
30% chance of thunderstorms Sunday Night Sunday Night... A 30 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 63.
20% chance of thunderstorms Monday Monday... A 20 percent chance of showers and thunderstorms. Mostly sunny, with a high near 85.
Current Radar Image


Sun Almanac for Reader, Illinois
Sunrise: 06:43 AM
Sunset: 7:07 PM
Civil Sunrise:06:16 AM
Civil Sunset: 7:34 PM
Nautical Sunrise: 05:44 AM
Nautical Sunset: 8:05 PM
Astro Sunrise: 05:12 AM
Astro Sunset: 8:37 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.