Edwardsville

Sully County, Illinois, United States

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Current Weather

31°

Partly Cloudy

Feels Like: 17°

Min: 22°

Max: 37°

The next few hours will be clear, with tomorrow reaching 28°C and dropping to 12°C. The coming days will be mostly cloudy

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Hourly Forecast

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Today
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Daylight Hours

06:47

Sunrise

19:01

Sunset

12 hours 14 minutes of sunlight today

Moon

Waxing Crescent

11:32

Moonrise

20:40

Moonset

Daily Forecast

Tuesday

22°
37°

Today

14°
28°

Thursday

10°
17°

Friday

19°

Saturday

19°

Sunday

19°

Monday

19°

Tuesday

19°

Wednesday

25°

Thursday

17°
27°

Air Quality Data Available

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UV Index

No protection needed
0 Low
Low Extreme

Humidity

60% Comfortable
Low High

Weather in Edwardsville tomorrow, September 16, 2026

Cloud cover dominates in Edwardsville on September 16, 2026, keeping sunshine limited. Expect a grey, overcast feel rather than long bright spells. Expect a grey start, with morning cloud around 100% by 02:00. Outdoor plans early on should not rely on bright skies.

Expect highs of 28°C and cooler readings close to 14°C. The air stays humid, with relative humidity between 43% and 94% and the peak around 04:00. Winds stay light, near 6.4 km/h by 04:00, so the day feels still more than breezy.

Expect persistent cloud later on, with amounts around 84% by 12:00. Sunshine remains the exception, not the rule. Visibility stays generally good near 14.8 km on average, though it can drop toward 3.1 km in thicker cloud or showers. Expect sunrise at 06:48, sunset at 18:59, and 12 hours 11 minutes of sunlight today overall.

Overall, Edwardsville on September 16, 2026 stays grey and muted, so outdoor plans may want a flexible backup even with a high near 28°C.

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Metric (°C, km/h)