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 Collinsville Weather Forecast Summary |
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Today
Feb 19th
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Friday
Feb 20th
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Saturday
Feb 21st
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Sunday
Feb 22nd
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Monday
Feb 23rd
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Cloudy |
Mix of Cloud and Sun |
Cloudy |
Sunny |
Cloudy |
67°F
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51°F
36°F |
40°F
31°F |
43°F
28°F |
41°F
22°F |
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| Collinsville Detailed Weather Forecast |
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| Thursday, February 19th, 2026 |
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Overnight |
Temperature: 56°F |
| Clear. Windy. |
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Morning |
Temperature: 63°F |
| A mix of cloud and sun. Windy. |
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Afternoon |
Temperature: 59°F |
| Sunny. Windy at times. |
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Evening |
Temperature: 45°F |
| Cloudy. Windy. |
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| Friday, February 20th, 2026 |
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Overnight |
Temperature: 37°F |
| A mix of cloudy and clear skies. |
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Morning |
Temperature: 45°F |
| A mix of cloud and sun. Windy at times. |
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Afternoon |
Temperature: 46°F |
| Sunny. Windy at times. |
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Evening |
Temperature: 41°F |
| A mix of cloudy and clear skies. Windy at times. |
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| Saturday, February 21st, 2026 |
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Overnight |
Temperature: 38°F |
| Cloudy with a chance of showers. Showers possibly mixed with wet flurries. Windy. |
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Morning |
Temperature: 36°F |
| Cloudy with a chance of showers. Showers possibly mixed with wet flurries. Windy. |
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Afternoon |
Temperature: 38°F |
| Sunny. Windy at times. |
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Evening |
Temperature: 32°F |
| Clear. |
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| Sunday, February 22nd, 2026 |
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Overnight |
Temperature: 29°F |
| Clear. Windy at times. |
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Morning |
Temperature: 38°F |
| Sunny. Windy. |
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Afternoon |
Temperature: 38°F |
| Sunny. Windy at times. |
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Evening |
Temperature: 30°F |
| Clear. |
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| Monday, February 23rd, 2026 |
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Overnight |
Temperature: 23°F |
| Clear. |
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Morning |
Temperature: 33°F |
| Sunny. |
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Afternoon |
Temperature: 38°F |
| A mix of cloud and sun. |
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Evening |
Temperature: 34°F |
| Cloudy. |
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| Tuesday, February 24th, 2026 |
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Overnight |
Temperature: 33°F |
| A mix of cloudy and clear skies. Windy at times. |
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Morning |
Temperature: 46°F |
| Cloudy. Windy. |
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Afternoon |
Temperature: 50°F |
| Sunny. Windy. |
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Evening |
Temperature: 45°F |
| Cloudy. Windy. |
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| Wednesday, February 25th, 2026 |
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Overnight |
Temperature: 46°F |
| Cloudy. Windy. |
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Morning |
Temperature: 52°F |
| Cloudy. Windy at times. |
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Afternoon |
Temperature: 54°F |
| Cloudy. |
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Evening |
Temperature: 51°F |
| Cloudy. |
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