Decatur 7-day weather forecast

Written by:
August 18, 2025
ESOlex // Shutterstock

Decatur 7-day weather forecast

Stacker created the forecast for Decatur, Alabama using data from OpenWeather. This week's high is 95 °F on Tuesday, while the low is 71 °F on Saturday. There are expected to be 4 sunny days and rain on 5 days this week.

NWS Huntsville AL has issued a heat advisory until Wednesday at 08:00 PM.

Monday, August 18

- High of 94 °F, low of 73 °F (48% humidity)
- Sunny with a 0% chance of rain
- Very high risk of harm from sun exposure (10 UV index)
- Gentle breeze (9 mph wind)
- Sunrise at 6:11 AM, sunset at 7:32 PM
1 / 6
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Tuesday, August 19

- High of 95 °F, low of 74 °F (46% humidity)
- Sunny with a 0% chance of rain
- Very high risk of harm from sun exposure (10 UV index)
- Light breeze (7 mph wind)
- Sunrise at 6:11 AM, sunset at 7:31 PM
2 / 6
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Wednesday, August 20

- High of 95 °F, low of 72 °F (49% humidity)
- Sunny with a 93% chance of rain (1 mm of rain)
- Very high risk of harm from sun exposure (10 UV index)
- Gentle breeze (10 mph wind)
- Sunrise at 6:12 AM, sunset at 7:30 PM
3 / 6
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Thursday, August 21

- High of 93 °F, low of 72 °F (47% humidity)
- Partly cloudy with a 100% chance of rain (4 mm of rain)
- Very high risk of harm from sun exposure (8 UV index)
- Moderate breeze (14 mph wind)
- Sunrise at 6:13 AM, sunset at 7:29 PM
4 / 6
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Friday, August 22

- High of 83 °F, low of 72 °F (86% humidity)
- Overcast with a 100% chance of rain (11 mm of rain)
- Light breeze (6 mph wind)
- Sunrise at 6:14 AM, sunset at 7:27 PM
5 / 6
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Saturday, August 23

- High of 84 °F, low of 71 °F (69% humidity)
- Partly sunny with a 100% chance of rain (10 mm of rain)
- Light breeze (6 mph wind)
- Sunrise at 6:14 AM, sunset at 7:26 PM
- New moon
6 / 6
Andrzej Kubik // Shutterstock

Sunday, August 24

- High of 87 °F, low of 71 °F (59% humidity)
- Mostly sunny with a 100% chance of rain (4 mm of rain)
- Gentle breeze (11 mph wind)
- Sunrise at 6:15 AM, sunset at 7:25 PM

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