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 Collinsville Weather Forecast Summary |
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Today
Jun 15th
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Tuesday
Jun 16th
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Wednesday
Jun 17th
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Thursday
Jun 18th
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Friday
Jun 19th
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Sunny |
Mostly Sunny |
Mostly Sunny |
Mostly Sunny |
Sunny |
75°F
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73°F
59°F |
87°F
62°F |
76°F
63°F |
74°F
58°F |
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| Collinsville Detailed Weather Forecast |
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| Monday, June 15th, 2026 |
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Overnight |
Temperature: 59°F |
| Clear. |
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Morning |
Temperature: 64°F |
| Sunny. |
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Afternoon |
Temperature: 74°F |
| Sunny. |
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Evening |
Temperature: 69°F |
| Clear. |
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| Tuesday, June 16th, 2026 |
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Overnight |
Temperature: 60°F |
| Clear. |
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Morning |
Temperature: 67°F |
| Sunny. Windy at times. |
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Afternoon |
Temperature: 69°F |
| A mix of cloud and sun with a slight chance of showers or thundershowers. Windy at times. |
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Evening |
Temperature: 70°F |
| Clear with a slight chance of showers or thundershowers. |
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| Wednesday, June 17th, 2026 |
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Overnight |
Temperature: 62°F |
| Clear. |
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Morning |
Temperature: 71°F |
| Mostly sunny. Chance of a thunderstorm. Windy. |
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Afternoon |
Temperature: 86°F |
| Sunny. Chance of a thunderstorm. Wind 20 to 30 mph. |
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Evening |
Temperature: 85°F |
| Clear with cloudy periods with a slight chance of showers or thundershowers. Windy. |
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| Thursday, June 18th, 2026 |
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Overnight |
Temperature: 71°F |
| Clear with cloudy periods with a chance of showers. Windy at times. |
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Morning |
Temperature: 68°F |
| A mix of sun and cloud. |
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Afternoon |
Temperature: 75°F |
| A mix of sun and cloud. Windy at times. |
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Evening |
Temperature: 66°F |
| Mostly clear. |
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| Friday, June 19th, 2026 |
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Overnight |
Temperature: 59°F |
| Clear. |
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Morning |
Temperature: 65°F |
| Sunny. Windy at times. |
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Afternoon |
Temperature: 73°F |
| Sunny. Windy at times. |
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Evening |
Temperature: 66°F |
| Clear. |
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| Saturday, June 20th, 2026 |
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Overnight |
Temperature: 59°F |
| Clear with cloudy periods. |
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Morning |
Temperature: 64°F |
| A mix of cloud and sun. |
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Afternoon |
Temperature: 77°F |
| Sunny with cloudy periods. Windy at times. |
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Evening |
Temperature: 69°F |
| A mix of cloudy and clear skies. |
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| Sunday, June 21st, 2026 |
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Overnight |
Temperature: 66°F |
| A mix of cloudy and clear skies with showers likely. |
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Morning |
Temperature: 72°F |
| A mix of cloud and sun with showers likely. Chance of a thunderstorm. Windy. |
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Afternoon |
Temperature: 79°F |
| A mix of cloud and sun with a chance of showers or thundershowers. Windy at times. |
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Evening |
Temperature: 69°F |
| Clear with cloudy periods. Windy at times. |
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| Monday, June 22nd, 2026 |
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Overnight |
Temperature: 64°F |
| A mix of cloudy and clear skies. |
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Morning |
Temperature: 64°F |
| Cloudy with a chance of showers. Windy at times. |
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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 |
| A mix of clear and cloudy skies. |
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| Tuesday, June 23rd, 2026 |
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Overnight |
Temperature: 65°F |
| A mix of cloudy and clear skies. |
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Morning |
Temperature: 67°F |
| Mostly cloudy. |
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Afternoon |
Temperature: 75°F |
| A mix of cloud and sun. |
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Evening |
Temperature: 72°F |
| A mix of clear and cloudy skies. |
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