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Charleston IL Weather - Clear - 45°F
Clear
45°F
Updated 3:52 am
Feels Like 48°F
Humidity 89%
Wind N 0 mph
Barometer  30.26 in
Dew Point 42°F
Charleston IL Weather - Clear - 7°C
Clear
7°C
Updated 3:52 am
Feels Like 9°C
Humidity 89%
Wind N 0 km/h
Barometer  102.4 kPa
Dew Point 6°C
Charleston, IL Weather and Current Conditionscharleston il weather forecast

Charleston, IL Weather Forecast

Charleston Illinois WeatherCharleston, Illinois Weather Weather Forecast
14 day API forecast for Charleston, Illinois. Note. The 7-day weather forecast for Charleston, IL is the most reliable and accurate forecast. This model should only be used as a likely scenario. It is difficult to predict weather more than 7 days in advance.
Charleston, IL Weather Forecast Dated: 352 AM Wed Oct 21 2026
Expect a cool pattern with a mix of sun and clouds and occasional showers over the coming period. moderate humidity and a stable pattern will dominate.

Wednesday, October 21, 2026

Mid-Morning
Charleston Weather - 2026-10-21 - Morning - Sunny
58°F 14°C
Sunny
Mid-Afternoon
Charleston Weather - 2026-10-21 - Afternoon - Sunny
73°F 23°C
Sunny
Early-Evening
Charleston Weather - 2026-10-21 - Evening - Sunny
63°F 18°C
Sunny
Pleasant near 73°F 23°C, sunny throughout the day, with lower humidity and steady pressure.

Thursday, October 22, 2026

Mid-Morning
Charleston Weather - 2026-10-22 - Morning - Sunny
60°F 16°C
Sunny
Mid-Afternoon
Charleston Weather - 2026-10-22 - Afternoon - Sunny
74°F 24°C
Sunny
Early-Evening
Charleston Weather - 2026-10-22 - Evening - Sunny
64°F 18°C
Sunny
Comfortable with temperatures reaching 74°F 24°C, sunny throughout the day, with steady humidity and steady pressure.

Friday, October 23, 2026

Mid-Morning
Charleston Weather - 2026-10-23 - Morning - Sunny
58°F 15°C
Sunny
Mid-Afternoon
Charleston Weather - 2026-10-23 - Afternoon - Cloudy
74°F 23°C
Cloudy
Early-Evening
Charleston Weather - 2026-10-23 - Evening - Sunny
63°F 18°C
Sunny
Enjoyable around 74°F 23°C, sunny in the morning, cloudy in the afternoon, and sunny this evening, with lower humidity and steady pressure.

Saturday, October 24, 2026

Mid-Morning
Charleston Weather - 2026-10-24 - Morning - Sunny
58°F 14°C
Sunny
Mid-Afternoon
Charleston Weather - 2026-10-24 - Afternoon - Overcast
74°F 24°C
Overcast
Early-Evening
Charleston Weather - 2026-10-24 - Evening - Overcast
64°F 18°C
Overcast
Mild temperatures up to 74°F 24°C, sunny in the morning, becoming overcast through the afternoon and evening, with lower humidity and steady pressure. Winds turning from the SSE to the SE at 7 mph 10 km/h.

Sunday, October 25, 2026

Mid-Morning
Charleston Weather - 2026-10-25 - Morning - Overcast
60°F 16°C
Overcast
Mid-Afternoon
Charleston Weather - 2026-10-25 - Afternoon - Cloudy
76°F 24°C
Cloudy
Early-Evening
Charleston Weather - 2026-10-25 - Evening - Overcast
66°F 19°C
Overcast
Mild with a high of 76°F 24°C, overcast in the morning, cloudy in the afternoon, and overcast this evening, with steady humidity and steady pressure.

Monday, October 26, 2026

Mid-Morning
Charleston Weather - 2026-10-26 - Morning - Overcast
63°F 17°C
Overcast
Mid-Afternoon
Charleston Weather - 2026-10-26 - Afternoon - Cloudy
73°F 23°C
Cloudy
Early-Evening
Charleston Weather - 2026-10-26 - Evening - Overcast
65°F 19°C
Overcast
Pleasant near 73°F 23°C, overcast throughout the day, with steady humidity and barometric pressure falling. Winds blowing from the SW at 8 mph 13 km/h.

Tuesday, October 27, 2026

Mid-Morning
Charleston Weather - 2026-10-27 - Morning - Overcast
61°F 16°C
Overcast
Mid-Afternoon
Charleston Weather - 2026-10-27 - Afternoon - Overcast
63°F 17°C
Overcast
Early-Evening
Charleston Weather - 2026-10-27 - Evening - Overcast
58°F 15°C
Overcast
Comfortable at 63°F 17°C, overcast throughout the day, with increasing humidity and steady pressure.

Wednesday, October 28, 2026

Mid-Morning
Charleston Weather - 2026-10-28 - Morning - Light Fog
56°F 14°C
Light Fog
Mid-Afternoon
Charleston Weather - 2026-10-28 - Afternoon - Sunny
68°F 20°C
Sunny
Early-Evening
Charleston Weather - 2026-10-28 - Evening - Cloudy
62°F 17°C
Cloudy
Enjoyable around 68°F 20°C, sunny in the morning, cloudy in the afternoon, and partly cloudy this evening, with lower humidity and barometric pressure falling. Winds moving from the S to the SW at 8 mph 13 km/h.

Thursday, October 29, 2026

Mid-Morning
Charleston Weather - 2026-10-29 - Morning - Overcast
48°F 9°C
Overcast
Mid-Afternoon
Charleston Weather - 2026-10-29 - Afternoon - Cloudy
51°F 11°C
Cloudy
Early-Evening
Charleston Weather - 2026-10-29 - Evening - Clear
45°F 7°C
Clear
Brisk around 51°F 11°C, overcast in the morning, partly cloudy in the afternoon, and sunny this evening, with steady humidity and steady pressure. Winds easing from NW 17 mph 28 km/h to NW 8 mph 12 km/h.

Friday, October 30, 2026

Mid-Morning
Charleston Weather - 2026-10-30 - Morning - Overcast
44°F 7°C
Overcast
Mid-Afternoon
Charleston Weather - 2026-10-30 - Afternoon - Overcast
56°F 13°C
Overcast
Early-Evening
Charleston Weather - 2026-10-30 - Evening - Cloudy
48°F 9°C
Cloudy
Cool and brisk at 56°F 13°C, cloudy in the morning, overcast in the afternoon, and partly cloudy this evening, with lower humidity and steady pressure.

Saturday, October 31, 2026

Mid-Morning
Charleston Weather - 2026-10-31 - Morning - Overcast
44°F 7°C
Overcast
Mid-Afternoon
Charleston Weather - 2026-10-31 - Afternoon - Overcast
56°F 13°C
Overcast
Early-Evening
Charleston Weather - 2026-10-31 - Evening - Overcast
55°F 13°C
Overcast
Chilly near 56°F 13°C, overcast throughout the day, with lower humidity and barometric pressure falling. Winds shifting from the ESE to the SE at 11 mph 17 km/h. Gusts up to 24 mph 38 km/h.

Sunday, November 1, 2026

Mid-Morning
Charleston Weather - 2026-11-01 - Morning - Light Rain
50°F 10°C
Light Rain
Mid-Afternoon
Charleston Weather - 2026-11-01 - Afternoon - Light Rain
52°F 11°C
Light Rain
Early-Evening
Charleston Weather - 2026-11-01 - Evening - Light Rain
53°F 12°C
Light Rain
Crisp with a high near 52°F 11°C, on-and-off showers throughout the day, with steady humidity and steady pressure. Winds turning from the SSE to the S at 12 mph 19 km/h. Gusts up to 25 mph 41 km/h.

Monday, November 2, 2026

Mid-Morning
Charleston Weather - 2026-11-02 - Morning - Overcast
58°F 15°C
Overcast
Mid-Afternoon
Charleston Weather - 2026-11-02 - Afternoon - Scattered Showers
65°F 18°C
Scattered Showers
Early-Evening
Charleston Weather - 2026-11-02 - Evening - Overcast
58°F 14°C
Overcast
Refreshing around 65°F 18°C, periods of heavy rain and gusty conditions, with steady humidity and steady pressure. Winds switching from the SSW to the WNW at 6 mph 10 km/h.

Tuesday, November 3, 2026

Mid-Morning
Charleston Weather - 2026-11-03 - Morning - Overcast
59°F 15°C
Overcast
Mid-Afternoon
Charleston Weather - 2026-11-03 - Afternoon - Overcast
67°F 19°C
Overcast
Early-Evening
Charleston Weather - 2026-11-03 - Evening - Overcast
61°F 16°C
Overcast
Mildly cool near 67°F 19°C, overcast throughout the day, with steady humidity and steady pressure. Winds moving from the E to the ESE at 9 mph 14 km/h.

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Weather by the Numbers

Wed, 21st
Charleston IL Weather - Wednesday, Oct 21, 2026 - Sunny
Hi: 73°F 23°C
Lo: 50°F 10°C
Sunrise 07:10 AM
Sunset 06:05 PM
Wind SW 1 mph2 km/h
Dew Point 37°F3°C
uv Index 4
Barometric Pressure 30.24 in1024 mb
POP 1% *
Humidity 30%
Thu, 22nd
Charleston IL Weather - Thursday, Oct 22, 2026 - Sunny
Hi: 74°F 24°C
Lo: 53°F 12°C
Sunrise 07:11 AM
Sunset 06:04 PM
Wind NE 4 mph6 km/h
Dew Point 39°F4°C
uv Index 4
Barometric Pressure 30.24 in1024 mb
POP 1% *
Humidity 31%
Fri, 23rd
Charleston IL Weather - Friday, Oct 23, 2026 - Partly Cloudy
Hi: 74°F 23°C
Lo: 52°F 11°C
Sunrise 07:12 AM
Sunset 06:03 PM
Wind SSE 7 mph12 km/h
Dew Point 41°F5°C
uv Index 4
Barometric Pressure 30.33 in1027 mb
POP 2% *
Humidity 35%
Sat, 24th
Charleston IL Weather - Saturday, Oct 24, 2026 - Sunny
Hi: 74°F 24°C
Lo: 52°F 11°C
Sunrise 07:13 AM
Sunset 06:01 PM
Wind SSE 8 mph13 km/h
Dew Point 40°F5°C
uv Index 6
Barometric Pressure 30.39 in1029 mb
POP 2% *
Humidity 33%
Sun, 25th
Charleston IL Weather - Sunday, Oct 25, 2026 - Cloudy
Hi: 76°F 24°C
Lo: 55°F 13°C
Sunrise 07:14 AM
Sunset 06:00 PM
Wind SSW 8 mph13 km/h
Dew Point 41°F5°C
uv Index 5
Barometric Pressure 30.36 in1028 mb
POP 7% *
Humidity 33%
Mon, 26th
Charleston IL Weather - Monday, Oct 26, 2026 - Overcast
Hi: 73°F 23°C
Lo: 57°F 14°C
Sunrise 07:15 AM
Sunset 05:59 PM
Wind SW 8 mph13 km/h
Dew Point 41°F5°C
uv Index 5
Barometric Pressure 30.24 in1024 mb
POP 8% *
Humidity 35%
Tue, 27th
Charleston IL Weather - Tuesday, Oct 27, 2026 - Overcast
Hi: 66°F 19°C
Lo: 56°F 13°C
Sunrise 07:16 AM
Sunset 05:58 PM
Wind WSW 6 mph9 km/h
Dew Point 44°F7°C
uv Index 4
Barometric Pressure 30.15 in1021 mb
POP 11% *
Humidity 46%
Wed, 28th
Charleston IL Weather - Wednesday, Oct 28, 2026 - Sunny
Hi: 69°F 21°C
Lo: 51°F 11°C
Sunrise 07:17 AM
Sunset 05:56 PM
Wind SW 6 mph9 km/h
Dew Point 49°F9°C
uv Index 5
Barometric Pressure 30.15 in1021 mb
POP 4% *
Humidity 59%
Thu, 29th
Charleston IL Weather - Thursday, Oct 29, 2026 - Overcast
Hi: 59°F 15°C
Lo: 40°F 5°C
Sunrise 07:18 AM
Sunset 05:55 PM
Wind NW 16 mph26 km/h
Dew Point 36°F2°C
uv Index 2
Barometric Pressure 30.24 in1024 mb
POP 13% *
Humidity 61%
Fri, 30th
Charleston IL Weather - Friday, Oct 30, 2026 - Partly Cloudy
Hi: 57°F 14°C
Lo: 38°F 3°C
Sunrise 07:19 AM
Sunset 05:54 PM
Wind WSW 5 mph9 km/h
Dew Point 26°F-4°C
uv Index 4
Barometric Pressure 30.33 in1027 mb
POP 7% *
Humidity 36%
Sat, 31st
Charleston IL Weather - Saturday, Oct 31, 2026 - Overcast
Hi: 57°F 14°C
Lo: 39°F 4°C
Sunrise 07:21 AM
Sunset 05:53 PM
Wind ESE 13 mph22 km/h
Dew Point 26°F-3°C
uv Index 3
Barometric Pressure 30.3 in1026 mb
POP 10% *
Humidity 37%
Sun, 1st
Charleston IL Weather - Sunday, Nov 1, 2026 - Light Drizzle
Hi: 54°F 12°C
Lo: 48°F 9°C
Sunrise 07:22 AM
Sunset 05:52 PM
Wind S 16 mph26 km/h
Dew Point 49°F9°C
uv Index 3
Barometric Pressure 30.06 in1018 mb
POP 67% *
Humidity 93%
Mon, 2nd
Charleston IL Weather - Monday, Nov 2, 2026 - Patchy Rain Nearby
Hi: 65°F 18°C
Lo: 54°F 12°C
Sunrise 06:22 AM
Sunset 04:50 PM
Wind SW 8 mph13 km/h
Dew Point 58°F14°C
uv Index 4
Barometric Pressure 29.97 in1015 mb
POP 36% *
Humidity 89%
Tue, 3rd
Charleston IL Weather - Tuesday, Nov 3, 2026 - Cloudy
Hi: 67°F 19°C
Lo: 54°F 12°C
Sunrise 06:23 AM
Sunset 04:49 PM
Wind ESE 7 mph12 km/h
Dew Point 52°F11°C
uv Index 4
Barometric Pressure 29.94 in1014 mb
POP 9% *
Humidity 62%
* POP = Probability of Precipitation. Data for 12:00 PM.