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 Decatur Weather Forecast Summary |
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Today
May 18th
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Tuesday
May 19th
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Wednesday
May 20th
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Thursday
May 21st
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Friday
May 22nd
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Mostly Sunny |
Mostly Sunny |
Mix of Cloud and Sun |
Mostly Sunny |
Thundershowers |
90°F
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90°F
64°F |
92°F
68°F |
91°F
68°F |
77°F
66°F |
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| Decatur Detailed Weather Forecast |
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| Monday, May 18th, 2026 |
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Afternoon |
Temperature: 89°F |
| Sunny. Slight chance of a thunderstorm. Windy at times. |
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Evening |
Temperature: 77°F |
| Mostly clear. |
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| Tuesday, May 19th, 2026 |
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Overnight |
Temperature: 67°F |
| Clear. |
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Morning |
Temperature: 72°F |
| Sunny. |
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Afternoon |
Temperature: 89°F |
| Mostly sunny. |
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Evening |
Temperature: 78°F |
| Mostly clear. |
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| Wednesday, May 20th, 2026 |
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Overnight |
Temperature: 69°F |
| A mix of cloudy and clear skies. |
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Morning |
Temperature: 77°F |
| A mix of sun and cloud. |
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Afternoon |
Temperature: 91°F |
| A mix of cloud and sun. Slight chance of a thunderstorm. |
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Evening |
Temperature: 80°F |
| Mostly cloudy. |
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| Thursday, May 21st, 2026 |
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Overnight |
Temperature: 70°F |
| Mostly clear with a slight chance of showers. |
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Morning |
Temperature: 78°F |
| Sunny. Slight chance of a thunderstorm. |
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Afternoon |
Temperature: 90°F |
| Mostly cloudy. |
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Evening |
Temperature: 72°F |
| Clear with cloudy periods with a chance of showers. Windy at times. |
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| Friday, May 22nd, 2026 |
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Overnight |
Temperature: 67°F |
| Mostly cloudy with a chance of showers. Windy at times. |
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Morning |
Temperature: 69°F |
| Mostly cloudy with a chance of showers. Slight chance of a thunderstorm. |
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Afternoon |
Temperature: 77°F |
| Sunny with cloudy periods with showers likely. Chance of a thunderstorm. |
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Evening |
Temperature: 68°F |
| A mix of cloudy and clear skies with showers. Slight chance of a thunderstorm. |
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| Saturday, May 23rd, 2026 |
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Overnight |
Temperature: 65°F |
| A mix of cloudy and clear skies with a slight chance of showers. |
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Morning |
Temperature: 67°F |
| A mix of cloud and sun. |
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Afternoon |
Temperature: 81°F |
| Sunny with cloudy periods with a chance of showers or thundershowers. |
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Evening |
Temperature: 74°F |
| Mostly clear with a chance of showers or thundershowers. |
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| Sunday, May 24th, 2026 |
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Overnight |
Temperature: 67°F |
| Clear with a chance of showers. |
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Morning |
Temperature: 74°F |
| Mostly sunny. Slight chance of a thunderstorm. |
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Afternoon |
Temperature: 87°F |
| Sunny with cloudy periods. Chance of a thunderstorm. |
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Evening |
Temperature: 74°F |
| Clear with cloudy periods with a chance of showers or thundershowers. |
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| Monday, May 25th, 2026 |
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Overnight |
Temperature: 69°F |
| Mostly clear with a slight chance of showers. |
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Morning |
Temperature: 72°F |
| A mix of cloud and sun. Slight chance of a thunderstorm. |
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Afternoon |
Temperature: 83°F |
| Mostly sunny with a chance of showers or thundershowers. |
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Evening |
Temperature: 72°F |
| A mix of cloudy and clear skies with showers likely. Chance of a thunderstorm. |
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| Tuesday, May 26th, 2026 |
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Overnight |
Temperature: 68°F |
| Mostly cloudy with a chance of showers. |
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Morning |
Temperature: 73°F |
| A mix of cloud and sun with a chance of showers or thundershowers. |
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Afternoon |
Temperature: 79°F |
| A mix of sun and cloud with showers likely. Chance of a thunderstorm. |
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Evening |
Temperature: 73°F |
| A mix of cloudy and clear skies with showers likely. Chance of a thunderstorm. |
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