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 Lewisville Weather Forecast Summary |
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Today
Sep 16th
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Thursday
Sep 17th
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Friday
Sep 18th
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Saturday
Sep 19th
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Sunday
Sep 20th
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Mostly Sunny |
Mostly Sunny |
Mostly Sunny |
Mix of Sun and Cloud |
Mostly Sunny |
83°F
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79°F
54°F |
75°F
52°F |
69°F
50°F |
75°F
50°F |
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| Lewisville Detailed Weather Forecast |
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| Wednesday, September 16th, 2026 |
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Afternoon |
Temperature: 80°F |
| Mostly sunny. Windy at times. |
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Evening |
Temperature: 73°F |
| Mostly clear. |
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| Thursday, September 17th, 2026 |
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Overnight |
Temperature: 61°F |
| Clear with cloudy periods. |
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Morning |
Temperature: 57°F |
| Sunny with cloudy periods with a chance of showers. |
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Afternoon |
Temperature: 68°F |
| Sunny with cloudy periods with a chance of showers. Slight chance of a thunderstorm. |
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Evening |
Temperature: 71°F |
| Mostly clear with a slight chance of showers or thundershowers. Windy. |
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| Friday, September 18th, 2026 |
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Overnight |
Temperature: 56°F |
| Mostly clear. |
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Morning |
Temperature: 56°F |
| Mostly sunny. |
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Afternoon |
Temperature: 72°F |
| Sunny with cloudy periods with a chance of showers. Windy at times. |
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Evening |
Temperature: 66°F |
| Mostly clear with a chance of showers. Windy at times. |
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| Saturday, September 19th, 2026 |
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Overnight |
Temperature: 57°F |
| Mostly cloudy. Windy. |
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Morning |
Temperature: 52°F |
| A mix of sun and cloud with a slight chance of showers. |
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Afternoon |
Temperature: 67°F |
| A mix of sun and cloud. |
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Evening |
Temperature: 64°F |
| Mostly clear. |
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| Sunday, September 20th, 2026 |
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Overnight |
Temperature: 54°F |
| Mostly clear. |
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Morning |
Temperature: 53°F |
| Sunny. |
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Afternoon |
Temperature: 72°F |
| Sunny. |
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Evening |
Temperature: 68°F |
| Mostly clear. |
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| Monday, September 21st, 2026 |
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Overnight |
Temperature: 56°F |
| Mostly clear. |
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Morning |
Temperature: 56°F |
| Mostly sunny. |
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Afternoon |
Temperature: 74°F |
| A mix of cloud and sun. Windy at times. |
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Evening |
Temperature: 70°F |
| Clear. Windy at times. |
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| Tuesday, September 22nd, 2026 |
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Overnight |
Temperature: 57°F |
| Mostly clear. Windy at times. |
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Morning |
Temperature: 52°F |
| Sunny. Windy. |
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Afternoon |
Temperature: 65°F |
| Mostly sunny. Windy at times. |
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Evening |
Temperature: 60°F |
| Mostly clear. Windy at times. |
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| Wednesday, September 23rd, 2026 |
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Overnight |
Temperature: 48°F |
| Clear. |
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Morning |
Temperature: 49°F |
| Sunny. |
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Afternoon |
Temperature: 68°F |
| Mostly sunny. |
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Evening |
Temperature: 65°F |
| Clear. |
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| Thursday, September 24th, 2026 |
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Overnight |
Temperature: 54°F |
| Clear. |
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Morning |
Temperature: 55°F |
| Sunny. |
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Afternoon |
Temperature: 78°F |
| Sunny. |
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Evening |
Temperature: 73°F |
| Clear. |
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