Current Conditions

Charleston, Illinois

77°F25°C
Drizzle

Wind

S 6 mph10 km/h

Humidity

63%

Cloud Cover

22%

As of Tuesday, September 8, 2026 at 11:26 PM CDT

Today's Outlook

Night

Partly cloudy, with a low around 75°F24°C. Breezy from the SSW at 6 to 8 mph9 to 12 km/h. 16% chance of drizzle in the evening.

7-Day Forecast

DayConditionHigh (°F)Low (°F)Precip (mm)Cloud Cover (%)Wind (mph)
DrizzleHigh 90°F32°CFeels 94°F35°CLow 74°F24°CPrecip 0.02 in0.5 mm16%Cloud 44%Wind SW 6 mph10 km/hWednesday: Partly cloudy and hot, with a high of 90°F32°C and morning low of 74°F24°C. Breezy from the WSW at 7 to 8 mph11 to 13 km/h. 15% chance of drizzle in the afternoon. Humid. Wednesday Night: Partly cloudy, with a low around 75°F24°C. Breezy from the SSW at 6 to 8 mph9 to 12 km/h. 16% chance of drizzle in the evening.
RainHigh 77°F25°CLow 70°F21°CPrecip 0.93 in23.5 mm97%Cloud 93%Wind NW 4 mph6 km/hThursday: Overcast and warm, with a high of 77°F25°C and morning low of 72°F22°C. Light wind from the W around 4 mph7 km/h. 97% chance of rain throughout the day. Heavy, humid air. Thursday Night: Overcast, with a low around 70°F21°C. Light wind from the N around 4 mph6 km/h. 97% chance of rain throughout the night.
DrizzleHigh 81°F27°CLow 66°F19°CPrecip 0.08 in2 mm31%Cloud 68%Wind E 5 mph8 km/hFriday: Mostly cloudy and warm, with a high of 81°F27°C and morning low of 66°F19°C. Light wind from the E around 5 mph8 km/h. 31% chance of drizzle throughout the day. Humid. Friday Night: Mostly cloudy, with a low around 67°F19°C. Light wind from the E around 5 mph7 km/h. 17% chance of drizzle throughout the night.
DrizzleHigh 87°F30°CFeels 90°F32°CLow 68°F20°CPrecip 0.04 in1.1 mm11%Cloud 48%Wind SSW 5 mph8 km/hSaturday: Mostly cloudy and hot, with a high of 87°F30°C and morning low of 68°F20°C. Light wind from the SW around 5 mph9 km/h. Humid. Saturday Night: Partly cloudy, with a low around 68°F20°C. Light wind from the S around 4 mph7 km/h. 11% chance of drizzle throughout the night.
ClearHigh 84°F29°CLow 67°F20°CPrecip 0.02 in0.4 mm8%Cloud 29%Wind N 6 mph9 km/hSunday: Partly cloudy and warm, with a high of 84°F29°C and morning low of 67°F20°C. Light wind from the NNW around 6 mph10 km/h. Sunday Night: Mostly clear, with a low around 69°F21°C. Light wind from the N around 5 mph9 km/h.
ClearHigh 88°F31°CLow 65°F18°CPrecip 0.02 in0.6 mm8%Cloud 30%Wind SE 8 mph13 km/hMonday: Partly cloudy and hot, with a high of 88°F31°C and morning low of 65°F18°C. Breezy from the SE at 8 to 10 mph14 to 16 km/h. Monday Night: Mostly clear, with a low around 66°F19°C. Breezy from the SE at 8 to 10 mph13 to 17 km/h.
DrizzleHigh 91°F33°CFeels 94°F34°CLow 73°F23°CPrecip 0.03 in0.8 mm14%Cloud 34%Wind SSW 9 mph15 km/hTuesday: Partly cloudy and hot, with a high of 91°F33°C and morning low of 73°F23°C. Breezy from the SSW at 10 mph15 km/h. 13% chance of drizzle in the afternoon. Humid. Tuesday Night: Partly cloudy, with a low around 74°F23°C. Breezy from the S at 8 to 10 mph14 to 17 km/h. 14% chance of drizzle in the evening.

15-Day Forecast

Day High Low Precip Cloud Cover Condition Wind
WednesdaySep 990°F32°C
Feels 94°F35°C
74°F24°C0.02 in0.5 mm· 16%44%DrizzleSW 6 mph10 km/h
ThursdaySep 1077°F25°C70°F21°C0.93 in23.5 mm· 97%93%RainNW 4 mph6 km/h
FridaySep 1181°F27°C66°F19°C0.08 in2 mm· 31%68%DrizzleE 5 mph8 km/h
SaturdaySep 1287°F30°C
Feels 90°F32°C
68°F20°C0.04 in1.1 mm· 11%48%DrizzleSSW 5 mph8 km/h
SundaySep 1384°F29°C67°F20°C0.02 in0.4 mm· 8%29%ClearN 6 mph9 km/h
MondaySep 1488°F31°C65°F18°C0.02 in0.6 mm· 8%30%ClearSE 8 mph13 km/h
TuesdaySep 1591°F33°C
Feels 94°F34°C
73°F23°C0.03 in0.8 mm· 14%34%DrizzleSSW 9 mph15 km/h
WednesdaySep 1687°F31°C
Feels 90°F32°C
71°F22°C0.12 in3.1 mm· 23%55%ShowersSSE 7 mph11 km/h
ThursdaySep 1786°F30°C
Feels 89°F31°C
71°F22°C0.16 in4.1 mm· 21%45%ShowersSSW 8 mph14 km/h
FridaySep 1879°F26°C66°F19°C0.17 in4.2 mm· 21%50%ShowersNW 8 mph13 km/h
SaturdaySep 1976°F24°C60°F15°C0.11 in2.9 mm· 16%48%ShowersN 7 mph11 km/h
SundaySep 2073°F23°C57°F14°C0.09 in2.4 mm· 13%52%ShowersNNE 7 mph12 km/h
MondaySep 2173°F23°C55°F13°C0.1 in2.5 mm· 16%53%DrizzleENE 7 mph12 km/h
TuesdaySep 2273°F23°C55°F13°C0.13 in3.4 mm· 19%53%ShowersENE 7 mph12 km/h
WednesdaySep 2373°F23°C56°F13°C0.13 in3.4 mm· 23%57%ShowersE 8 mph12 km/h

Nearby Cities

About This Forecast

This forecast is powered by WeatherMesh, the world's most advanced and accurate weather model powered by AI. WeatherMesh is built on proprietary data from WindBorne's Global Sounding Balloon constellation — the world's largest fleet of autonomous, long-duration weather balloons — collecting observations across 100% of Earth, including over oceans and remote regions where no other data exists.

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Coordinates: 39.4962°N, 88.1762°W·Elevation: 204m·Timezone: America/Chicago·Population: 21,196