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Weather Forecast for Mercersburg (Pennsylvania)
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Forecast Overview
| Sunday, December 22 | sunrise: 07:29 sunset: 16:50 |
 | Sunny skies. Wind: 7 km/h. |
| Time | Skies | Conditions | Temp | Wind | Humidity | Soil Moisture |
| 16:00 19:00 |  | Clear. | -7°C | 7 km/h | 56% | 0.232% |
| 19:00 22:00 | | Clear. | -8°C | 4 km/h | 59% | 0.233% |
| 22:00 01:00 | | Clear. | -9°C | 3 km/h | 59% | 0.234% |
| Monday, December 23 | sunrise: 07:30 sunset: 16:51 |
 | Low around -10°C, high around 0°C. Mostly cloudy skies. Wind: 11 km/h. |
| Time | Skies | Conditions | Temp | Wind | Humidity | Soil Moisture |
| 01:00 04:00 | | Clear. | -9°C | 3 km/h | 61% | 0.235% |
| 04:00 07:00 | | Clear. | -10°C | 2 km/h | 62% | 0.236% |
| 07:00 10:00 | | Sunny. | -5°C | 6 km/h | 43% | 0.237% |
| 10:00 13:00 | | Overcast. | -1°C | 11 km/h | 38% | 0.237% |
| 13:00 16:00 | | Overcast. | -0°C | 10 km/h | 41% | 0.237% |
| 16:00 19:00 | | Overcast. | -4°C | 5 km/h | 59% | 0.238% |
| 19:00 22:00 | | Overcast. | -4°C | 5 km/h | 63% | 0.238% |
| 22:00 01:00 | | Overcast. | -4°C | 4 km/h | 66% | 0.239% |
| Tuesday, December 24 | sunrise: 07:30 sunset: 16:51 |
 | Low around -4°C, high around 5°C. Estimated precipitation: 0.0625 mm. Overcast skies. Wind: 8 km/h. |
| Time | Skies | Conditions | Temp | Wind | Humidity | Soil Moisture |
| 01:00 04:00 | | Overcast. | -2°C | 4 km/h | 61% | 0.24% |
| 04:00 07:00 | | Overcast. | -2°C | 5 km/h | 60% | 0.24% |
| 07:00 10:00 | | Overcast. | 2°C | 3 km/h | 65% | 0.241% |
| 10:00 13:00 | | Overcast. | 5°C | 8 km/h | 75% | 0.241% |
| 13:00 16:00 | | Overcast. | 4°C | 8 km/h | 84% | 0.24% |
| 16:00 19:00 | | Overcast. | 2°C | 7 km/h | 85% | 0.24% |
| 19:00 22:00 | | Overcast. Precipitation: 0.0625 mm. | 1°C | 3 km/h | 90% | 0.24% |
| 22:00 01:00 | | Overcast. | 1°C | 3 km/h | 88% | 0.238% |
| Wednesday, December 25 | sunrise: 07:31 sunset: 16:52 |
| Low around -2°C, high around 6°C. Mostly cloudy skies. Wind: 8 km/h. |
| Thursday, December 26 | sunrise: 07:31 sunset: 16:52 |
| Low around -1°C, high around 6°C. Overcast skies. Wind: 6 km/h. |
| Friday, December 27 | sunrise: 07:31 sunset: 16:53 |
| Low around -1°C, high around 5°C. Mostly cloudy skies. Wind: 10 km/h. |
| Saturday, December 28 | sunrise: 07:32 sunset: 16:54 |
| Low around -2°C, high around 7°C. Mostly cloudy skies. Wind: 5 km/h. |
| Sunday, December 29 | sunrise: 07:32 sunset: 16:54 |
| Low around 1°C, high around 8°C. Overcast skies. Wind: 19 km/h. |
Mercersburg (latitude 39°50'N, longitude 077°54'W)