Decatur, Illinois 7-day weather forecast

Written by:
February 10, 2025
ESOlex // Shutterstock

Decatur, Illinois 7-day weather forecast

Stacker created the forecast for Decatur, Illinois using data from OpenWeather. This week's high is 32 °F on Sunday, while the low is 3 °F on Thursday. There is expected to be 1 sunny day and snow on 3 days this week.

There are currently no weather alerts.

Monday, February 17

- High of 18 °F, low of 9 °F (63% humidity)
- Overcast with a 20% chance of snow (0 mm of snow)
- Moderate risk of harm from sun exposure (3 UV index)
- Moderate breeze (13 mph wind)
- Sunrise at 6:45 AM, sunset at 5:34 PM
1 / 6
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Tuesday, February 18

- High of 13 °F, low of 5 °F (57% humidity)
- Overcast with a 0% chance of snow
- Moderate risk of harm from sun exposure (3 UV index)
- Gentle breeze (12 mph wind)
- Sunrise at 6:44 AM, sunset at 5:35 PM
2 / 6
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Wednesday, February 19

- High of 16 °F, low of 9 °F (82% humidity)
- Overcast with a 100% chance of snow (3 mm of snow)
- Moderate risk of harm from sun exposure (3 UV index)
- Gentle breeze (12 mph wind)
- Sunrise at 6:43 AM, sunset at 5:36 PM
3 / 6
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Thursday, February 20

- High of 18 °F, low of 3 °F (75% humidity)
- Mostly cloudy with a 0% chance of snow
- Moderate risk of harm from sun exposure (4 UV index)
- Gentle breeze (12 mph wind)
- Sunrise at 6:41 AM, sunset at 5:37 PM
- Last quarter moon
4 / 6
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Friday, February 21

- High of 24 °F, low of 7 °F (74% humidity)
- Partly cloudy with a 0% chance of snow
- Moderate risk of harm from sun exposure (4 UV index)
- Light breeze (5 mph wind)
- Sunrise at 6:40 AM, sunset at 5:38 PM
5 / 6
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Saturday, February 22

- High of 31 °F, low of 10 °F (71% humidity)
- Sunny with a 0% chance of snow
- Moderate risk of harm from sun exposure (4 UV index)
- Gentle breeze (9 mph wind)
- Sunrise at 6:38 AM, sunset at 5:39 PM
6 / 6
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Sunday, February 23

- High of 32 °F, low of 21 °F (94% humidity)
- Overcast with a 100% chance of snow (2 mm of snow)
- Moderate risk of harm from sun exposure (4 UV index)
- Gentle breeze (9 mph wind)
- Sunrise at 6:37 AM, sunset at 5:41 PM

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