Decatur, Illinois 7-day Weather Forecast

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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 Sunday, while the low is 67 °F on Friday. There are expected to be 2 sunny days and rain on 6 days this week.

NWS Lincoln IL has issued a dense fog advisory until Monday at 10:00 AM.

Monday, July 14

- High of 85 °F, low of 69 °F (68% humidity)
- Sunny with a 0% chance of rain
- Very high risk of harm from sun exposure (10 UV index)
- Light breeze (6 mph wind)
- Sunrise at 5:39 AM, sunset at 8:23 PM

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Tuesday, July 15

- High of 84 °F, low of 69 °F (70% humidity)
- Mostly cloudy with a 100% chance of rain (2 mm of rain)
- Very high risk of harm from sun exposure (9 UV index)
- Light breeze (7 mph wind)
- Sunrise at 5:40 AM, sunset at 8:23 PM

2 / 6

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Wednesday, July 16

- High of 87 °F, low of 71 °F (70% humidity)
- Sunny with a 96% chance of rain (1 mm of rain)
- Very high risk of harm from sun exposure (10 UV index)
- Gentle breeze (11 mph wind)
- Sunrise at 5:40 AM, sunset at 8:22 PM

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Thursday, July 17

- High of 86 °F, low of 72 °F (84% humidity)
- Mostly cloudy with a 100% chance of rain (8 mm of rain)
- Very high risk of harm from sun exposure (10 UV index)
- Gentle breeze (8 mph wind)
- Sunrise at 5:41 AM, sunset at 8:21 PM
- Last quarter moon

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Friday, July 18

- High of 83 °F, low of 67 °F (75% humidity)
- Partly sunny with a 91% chance of rain (1 mm of rain)
- Light breeze (6 mph wind)
- Sunrise at 5:42 AM, sunset at 8:21 PM

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Saturday, July 19

- High of 87 °F, low of 71 °F (74% humidity)
- Overcast with a 100% chance of rain (6 mm of rain)
- Gentle breeze (8 mph wind)
- Sunrise at 5:43 AM, sunset at 8:20 PM

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Sunday, July 20

- High of 88 °F, low of 71 °F (74% humidity)
- Mostly cloudy with a 100% chance of rain (14 mm of rain)
- Gentle breeze (10 mph wind)
- Sunrise at 5:44 AM, sunset at 8:19 PM