National City, Illinois Weather
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Weather Forecast for National City, Illinois : St. Clair County
Issued: 5:26 am CDT Sep 16, 2025 Latitude: 38.6456062 Longitude: -90.160943 View on Google Maps

MouseOver for Detail Forecast
Today Tonight Wednesday Thursday Friday Saturday Sunday Monday
Sunny on Today Mostly Clear on Tonight Sunny on Wednesday Mostly Sunny on Thursday 40% chance of thunderstorms on Friday 30% chance of thunderstorms on Saturday 30% chance of on Sunday 30% chance of thunderstorms on Monday
High: 95°F Low: 67°F High: 95°F High: 96°F High: 88°F High: 86°F High: 87°F High: 88°F
Low: 66°F Low: 69°F Low: 67°F Low: 67°F Low: 68°F  
Sunny Mostly Clear Sunny Mostly Sunny Thunderstorms Thunderstorms Partly Sunny Thunderstorms
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Current Conditions at
EAST ST LOUIS - (KCPS)
64°
Clear
as of 4:53 AM CDST
Rel. Humidity: 93%
Dew Point: 63°F
Visibility: 10 Miles
Pressure: 30.11 in.
Flight Rule: VFR
Wind Data
Calm
Cloud Level(s): Clear
Current Conditions at
ST LOUIS - (KSTL)
72°
Clear
as of 4:51 AM CDST
Rel. Humidity: 73%
Dew Point: 63°F
Visibility: 10 Miles
Pressure: 30.12 in.
Flight Rule: VFR
Wind Data
3 MPH
040° Northeast
Cloud Level(s): Clear
Current Conditions at
SCOTT AFB - (KBLV)
68°
Partly Cloudy
as of 4:55 AM CDST
Rel. Humidity: 88%
Dew Point: 64°F
Visibility: 10 Miles
Pressure: 30.09 in.
Flight Rule: VFR
Wind Data
3 MPH
030° Northeast
Cloud Level(s): Scattered at 7000ft
Current Conditions at
ST CHARLES - (KSET)
66°
Clear
as of 4:54 AM CDST
Rel. Humidity: 88%
Dew Point: 63°F
Visibility: 10 Miles
Pressure: 30.12 in.
Flight Rule: VFR
Wind Data
3 MPH
320° Northwest
Cloud Level(s): Clear
Sunny on Today Today... Sunny, with a high near 95. Calm wind becoming northeast 5 to 7 mph in the afternoon.
Mostly Clear on Tonight Tonight... Mostly clear, with a low around 67. East wind 3 to 6 mph.
Sunny on Wednesday Wednesday... Sunny, with a high near 95. Light northeast wind.
Mostly Clear on Wednesday Night Wednesday Night... Mostly clear, with a low around 66. Light and variable wind.
Mostly Sunny on Thursday Thursday... Mostly sunny, with a high near 96. Calm wind becoming south around 6 mph in the afternoon.
20% chance of rain Thursday Night Thursday Night... A 20 percent chance of showers after 1am. Mostly cloudy, with a low around 69.
40% chance of thunderstorms Friday Friday... A chance of showers, with thunderstorms also possible after 1pm. Partly sunny, with a high near 88. Chance of precipitation is 40%.
50% chance of thunderstorms Friday Night Friday Night... A 50 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 67.
30% chance of thunderstorms Saturday Saturday... A chance of showers, with thunderstorms also possible after 1pm. Mostly sunny, with a high near 86. Chance of precipitation is 30%.
30% chance of thunderstorms Saturday Night Saturday Night... A 30 percent chance of showers and thunderstorms, mainly before 1am. Partly cloudy, with a low around 67.
30% chance of Sunday Sunday... A 30 percent chance of showers. Partly sunny, with a high near 87.
40% chance of thunderstorms Sunday Night Sunday Night... A 40 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 68.
30% chance of thunderstorms Monday Monday... A 30 percent chance of showers and thunderstorms. Mostly sunny, with a high near 88.
Current Radar Image


Sun Almanac for National City, Illinois
Sunrise: 06:44 AM
Sunset: 7:07 PM
Civil Sunrise:06:17 AM
Civil Sunset: 7:34 PM
Nautical Sunrise: 05:46 AM
Nautical Sunset: 8:05 PM
Astro Sunrise: 05:14 AM
Astro Sunset: 8:37 PM
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