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 Grundy Weather Forecast Summary |
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Today
Sep 12th
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Sunday
Sep 13th
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Monday
Sep 14th
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Tuesday
Sep 15th
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Wednesday
Sep 16th
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Mix of Sun and Cloud |
Mostly Sunny |
Mostly Sunny |
Mostly Sunny |
Mostly Sunny |
75°F
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86°F
65°F |
78°F
58°F |
90°F
56°F |
85°F
65°F |
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| Grundy Detailed Weather Forecast |
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| Saturday, September 12th, 2026 |
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Evening |
Temperature: 68°F |
| A mix of cloudy and clear skies. |
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| Sunday, September 13th, 2026 |
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Overnight |
Temperature: 66°F |
| Clear with a chance of showers. |
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Morning |
Temperature: 71°F |
| Mostly sunny with a chance of showers or thundershowers. |
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Afternoon |
Temperature: 85°F |
| Mostly sunny. Chance of a thunderstorm. |
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Evening |
Temperature: 71°F |
| Mostly clear. Slight chance of a thunderstorm. |
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| Monday, September 14th, 2026 |
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Overnight |
Temperature: 65°F |
| Mostly clear. |
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Morning |
Temperature: 68°F |
| A mix of cloud and sun. |
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Afternoon |
Temperature: 78°F |
| Mostly sunny. |
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Evening |
Temperature: 61°F |
| Mostly clear. |
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| Tuesday, September 15th, 2026 |
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Overnight |
Temperature: 56°F |
| Clear. |
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Morning |
Temperature: 68°F |
| Mostly sunny. |
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Afternoon |
Temperature: 89°F |
| Sunny. Slight chance of a thunderstorm. |
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Evening |
Temperature: 73°F |
| Clear. Slight chance of a thunderstorm. |
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| Wednesday, September 16th, 2026 |
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Overnight |
Temperature: 66°F |
| Clear. |
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Morning |
Temperature: 70°F |
| Mostly sunny with a chance of showers. |
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Afternoon |
Temperature: 79°F |
| A mix of cloud and sun with a chance of showers or thundershowers. |
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Evening |
Temperature: 69°F |
| Clear with a chance of showers. Slight chance of a thunderstorm. |
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| Thursday, September 17th, 2026 |
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Overnight |
Temperature: 67°F |
| Mostly clear with a chance of showers. |
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Morning |
Temperature: 74°F |
| Sunny. Slight chance of a thunderstorm. |
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Afternoon |
Temperature: 90°F |
| Sunny. Chance of a thunderstorm. |
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Evening |
Temperature: 75°F |
| Mostly clear with a slight chance of showers or thundershowers. |
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| Friday, September 18th, 2026 |
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Overnight |
Temperature: 66°F |
| Mostly clear with a slight chance of showers. |
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Morning |
Temperature: 73°F |
| Mostly sunny with a slight chance of showers. |
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Afternoon |
Temperature: 86°F |
| Sunny with cloudy periods with a slight chance of showers or thundershowers. |
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Evening |
Temperature: 72°F |
| Clear with cloudy periods with showers likely. Chance of a thunderstorm. |
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| Saturday, September 19th, 2026 |
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Overnight |
Temperature: 67°F |
| Mostly clear with a chance of showers. |
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Morning |
Temperature: 73°F |
| Mostly sunny with a chance of showers or thundershowers. |
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Afternoon |
Temperature: 82°F |
| Mostly sunny with showers likely. Chance of a thunderstorm. |
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Evening |
Temperature: 70°F |
| Mostly clear with showers likely. Chance of a thunderstorm. |
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| Sunday, September 20th, 2026 |
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Overnight |
Temperature: 66°F |
| Clear with a chance of showers. |
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Morning |
Temperature: 73°F |
| Mostly sunny. Slight chance of a thunderstorm. |
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Afternoon |
Temperature: 80°F |
| Mostly sunny with a chance of showers or thundershowers. |
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Evening |
Temperature: 69°F |
| Mostly clear with a chance of showers or thundershowers. |
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