Decatur, Illinois 7-day Weather Forecast

ESOlex // Shutterstock

Decatur, Illinois 7-day weather forecast

Stacker created the forecast for Decatur, Illinois using data from OpenWeather. This week's high is 88 °F on Monday, while the low is 53 °F on Thursday. There is expected to be 1 sunny day and rain on 2 days this week.

NWS Lincoln IL has issued an air quality alert until Monday at 03:00 PM.

Monday, July 20

- High of 88 °F, low of 68 °F (70% humidity)
- Partly cloudy with a 40% chance of rain (0 mm of rain)
- Very high risk of harm from sun exposure (7 UV index)
- Light breeze (7 mph wind)
- Sunrise at 5:43 AM, sunset at 8:20 PM

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1 / 6

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Tuesday, July 21

- High of 86 °F, low of 65 °F (71% humidity)
- Overcast with a 100% chance of rain (24 mm of rain)
- Very high risk of harm from sun exposure (9 UV index)
- Moderate breeze (14 mph wind)
- Sunrise at 5:44 AM, sunset at 8:19 PM
- First quarter moon

2 / 6

ESOlex // Shutterstock

Wednesday, July 22

- High of 70 °F, low of 56 °F (68% humidity)
- Partly cloudy with a 0% chance of rain
- Very high risk of harm from sun exposure (10 UV index)
- Moderate breeze (13 mph wind)
- Sunrise at 5:45 AM, sunset at 8:18 PM

3 / 6

Saijai Boonmak // Shutterstock

Thursday, July 23

- High of 72 °F, low of 53 °F (61% humidity)
- Partly cloudy with a 0% chance of rain
- Very high risk of harm from sun exposure (9 UV index)
- Light breeze (6 mph wind)
- Sunrise at 5:46 AM, sunset at 8:17 PM

4 / 6

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Friday, July 24

- High of 66 °F, low of 57 °F (79% humidity)
- Overcast with a 0% chance of rain
- Light breeze (6 mph wind)
- Sunrise at 5:47 AM, sunset at 8:17 PM

5 / 6

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Saturday, July 25

- High of 78 °F, low of 61 °F (64% humidity)
- Sunny with a 0% chance of rain
- Light breeze (6 mph wind)
- Sunrise at 5:48 AM, sunset at 8:16 PM

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6 / 6

Ryzhkov Oleksandr // Shutterstock

Sunday, July 26

- High of 85 °F, low of 65 °F (72% humidity)
- Partly cloudy with a 0% chance of rain
- Gentle breeze (9 mph wind)
- Sunrise at 5:49 AM, sunset at 8:15 PM