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 Mercersburg Weather Forecast Summary |
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Today
Jun 24th
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Thursday
Jun 25th
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Friday
Jun 26th
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Saturday
Jun 27th
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Sunday
Jun 28th
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Sunny |
Mix of Sun and Cloud |
Showers |
Mix of Cloud and Sun |
Mostly Sunny |
78°F
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80°F
59°F |
72°F
63°F |
73°F
64°F |
81°F
62°F |
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| Mercersburg Detailed Weather Forecast |
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| Wednesday, June 24th, 2026 |
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Overnight |
Temperature: 55°F |
| Clear. |
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Morning |
Temperature: 66°F |
| Sunny. |
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Afternoon |
Temperature: 77°F |
| Sunny. |
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Evening |
Temperature: 65°F |
| Clear. |
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| Thursday, June 25th, 2026 |
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Overnight |
Temperature: 59°F |
| Mostly clear. |
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Morning |
Temperature: 69°F |
| Mostly sunny. |
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Afternoon |
Temperature: 80°F |
| Sunny with cloudy periods. Chance of a thunderstorm. |
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Evening |
Temperature: 67°F |
| Cloudy with showers likely. Slight chance of a thunderstorm. Windy at times. |
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| Friday, June 26th, 2026 |
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Overnight |
Temperature: 63°F |
| Cloudy with a chance of showers. |
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Morning |
Temperature: 66°F |
| Mostly cloudy with a chance of showers. |
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Afternoon |
Temperature: 69°F |
| Cloudy with a few showers. Slight chance of a thunderstorm. |
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Evening |
Temperature: 64°F |
| Cloudy with a few showers. |
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| Saturday, June 27th, 2026 |
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Overnight |
Temperature: 64°F |
| Mostly cloudy with a chance of showers. |
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Morning |
Temperature: 66°F |
| A mix of cloud and sun with a chance of showers. |
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Afternoon |
Temperature: 71°F |
| A mix of cloud and sun. |
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Evening |
Temperature: 67°F |
| Mostly clear. |
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| Sunday, June 28th, 2026 |
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Overnight |
Temperature: 62°F |
| Mostly clear. |
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Morning |
Temperature: 72°F |
| Mostly sunny. |
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Afternoon |
Temperature: 80°F |
| Sunny. |
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Evening |
Temperature: 69°F |
| Clear. |
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| Monday, June 29th, 2026 |
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Overnight |
Temperature: 62°F |
| Clear. |
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Morning |
Temperature: 73°F |
| Mostly sunny. |
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Afternoon |
Temperature: 81°F |
| Sunny. |
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Evening |
Temperature: 71°F |
| Clear. |
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| Tuesday, June 30th, 2026 |
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Overnight |
Temperature: 63°F |
| Mostly clear. |
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Morning |
Temperature: 73°F |
| Sunny. |
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Afternoon |
Temperature: 86°F |
| Sunny. Chance of a thunderstorm. |
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Evening |
Temperature: 76°F |
| Clear. Chance of a thunderstorm. |
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| Wednesday, July 1st, 2026 |
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Overnight |
Temperature: 69°F |
| Clear. |
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Morning |
Temperature: 82°F |
| Sunny. Chance of a thunderstorm. |
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Afternoon |
Temperature: 95°F |
| Sunny. Chance of a thunderstorm. |
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Evening |
Temperature: 83°F |
| Clear. Chance of a thunderstorm. |
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| Thursday, July 2nd, 2026 |
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Overnight |
Temperature: 75°F |
| Clear. Chance of a thunderstorm. |
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Morning |
Temperature: 84°F |
| Sunny. Chance of a thunderstorm. |
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Afternoon |
Temperature: 97°F |
| A mix of cloud and sun. Chance of a thunderstorm. |
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Evening |
Temperature: 81°F |
| Clear. Chance of a thunderstorm. |
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