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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 94 °F on Tuesday, while the low is 70 °F on Friday. There are expected to be 3 sunny days and rain on 4 days this week.
There are currently no weather alerts.
Monday, June 29
- High of 90 °F, low of 75 °F (74% humidity)- Overcast with a 0% chance of rain
- Very high risk of harm from sun exposure (8 UV index)
- Moderate breeze (13 mph wind)
- Sunrise at 5:30 AM, sunset at 8:28 PM
- Full moon
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1 / 6
Witaya Proadtayakogool // Shutterstock
Tuesday, June 30
- High of 94 °F, low of 76 °F (67% humidity)
- Overcast with a 0% chance of rain
- Very high risk of harm from sun exposure (10 UV index)
- Moderate breeze (13 mph wind)
- Sunrise at 5:30 AM, sunset at 8:28 PM
- Overcast with a 0% chance of rain
- Very high risk of harm from sun exposure (10 UV index)
- Moderate breeze (13 mph wind)
- Sunrise at 5:30 AM, sunset at 8:28 PM
2 / 6
Matusciac Alexandru // Shutterstock
Wednesday, July 1
- High of 90 °F, low of 74 °F (67% humidity)
- Sunny with a 0% chance of rain
- Very high risk of harm from sun exposure (10 UV index)
- Gentle breeze (11 mph wind)
- Sunrise at 5:31 AM, sunset at 8:27 PM
- Sunny with a 0% chance of rain
- Very high risk of harm from sun exposure (10 UV index)
- Gentle breeze (11 mph wind)
- Sunrise at 5:31 AM, sunset at 8:27 PM
3 / 6
Dmitry Naumov // Shutterstock
Thursday, July 2
- High of 90 °F, low of 71 °F (66% humidity)
- Mostly cloudy with a 100% chance of rain (6 mm of rain)
- Very high risk of harm from sun exposure (10 UV index)
- Gentle breeze (12 mph wind)
- Sunrise at 5:31 AM, sunset at 8:27 PM
- Mostly cloudy with a 100% chance of rain (6 mm of rain)
- Very high risk of harm from sun exposure (10 UV index)
- Gentle breeze (12 mph wind)
- Sunrise at 5:31 AM, sunset at 8:27 PM
4 / 6
Jaromir Chalabala // Shutterstock
Friday, July 3
- High of 89 °F, low of 70 °F (68% humidity)
- Fair with a 100% chance of rain (6 mm of rain)
- Gentle breeze (9 mph wind)
- Sunrise at 5:32 AM, sunset at 8:27 PM
- Fair with a 100% chance of rain (6 mm of rain)
- Gentle breeze (9 mph wind)
- Sunrise at 5:32 AM, sunset at 8:27 PM
5 / 6
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Saturday, July 4
- High of 89 °F, low of 73 °F (67% humidity)
- Sunny with a 98% chance of rain (2 mm of rain)
- Gentle breeze (9 mph wind)
- Sunrise at 5:32 AM, sunset at 8:27 PM
- Sunny with a 98% chance of rain (2 mm of rain)
- Gentle breeze (9 mph wind)
- Sunrise at 5:32 AM, sunset at 8:27 PM
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6 / 6
Andrzej Kubik // Shutterstock
Sunday, July 5
- High of 88 °F, low of 75 °F (69% humidity)
- Mostly cloudy with a 100% chance of rain (3 mm of rain)
- Gentle breeze (10 mph wind)
- Sunrise at 5:33 AM, sunset at 8:27 PM
- Mostly cloudy with a 100% chance of rain (3 mm of rain)
- Gentle breeze (10 mph wind)
- Sunrise at 5:33 AM, sunset at 8:27 PM