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Weather Forecast for Mercersburg (Pennsylvania)
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Forecast Overview
Fri Sep 20 
81°F 57°F 27°C 14°C A few passing clouds.
detailsSat Sep 21 
81°F 59°F 27°C 15°C Chance of rain late at night.
detailsSun Sep 22 
68°F 61°F 20°C 16°C Chance of light rain at various times.
detailsMon Sep 23 
64°F 59°F 18°C 15°C Chance of rain in the afternoon.
detailsTue Sep 24 64°F 59°F 18°C 15°C Chance of rain almost all day.
detailsWed Sep 25 70°F 61°F 21°C 16°C Chance of rain in the afternoon.
detailsThu Sep 26 63°F 57°F 17°C 14°C Chance of rain all day.
detailsFri Sep 27 59°F 55°F 15°C 13°C Chance of rain until 2 pm.
detailsSat Sep 28 
64°F 55°F 18°C 13°C Mostly cloudy skies.
details
Detailed Forecast
| Thursday, September 19 | sunrise: 06:56 sunset: 19:14 |
 | Sunny skies. Wind: 4 mph (6 km/h). |
| Time | Skies | Conditions | Temp | Wind | Humidity | Soil Moisture |
| 17:00 20:00 |  | Clear. | 68°F (20°C) | 2 mph (3 km/h) | 74% | 0.271% |
| 20:00 23:00 | | Clear. | 64°F (18°C) | 4 mph (6 km/h) | 76% | 0.27% |
| Friday, September 20 | sunrise: 06:57 sunset: 19:12 |
| Low around 58°F (14°C), high around 81°F (27°C). A few passing clouds. Wind: 4 mph (6 km/h). |
| Time | Skies | Conditions | Temp | Wind | Humidity | Soil Moisture |
| 23:00 02:00 | | Clear. | 60°F (16°C) | 3 mph (5 km/h) | 74% | 0.27% |
| 02:00 05:00 | | Mostly clear. | 59°F (15°C) | 3 mph (4 km/h) | 75% | 0.269% |
| 05:00 08:00 | | Sunny. | 60°F (16°C) | 3 mph (5 km/h) | 75% | 0.268% |
| 08:00 11:00 | | Sunny. | 74°F (23°C) | 2 mph (3 km/h) | 51% | 0.264% |
| 11:00 14:00 | | Overcast. | 80°F (27°C) | 4 mph (6 km/h) | 45% | 0.259% |
| 14:00 17:00 | | Mostly sunny, with a few passing clouds. | 79°F (26°C) | 4 mph (6 km/h) | 47% | 0.255% |
| 17:00 20:00 | | Clear. | 67°F (20°C) | 2 mph (3 km/h) | 70% | 0.255% |
| 20:00 23:00 | | Clear. | 64°F (18°C) | 2 mph (3 km/h) | 78% | 0.255% |
| Saturday, September 21 | sunrise: 06:57 sunset: 19:10 |
| Low around 58°F (15°C), high around 80°F (27°C). Chance of rain late at night (after 8 pm). The precipitation may fall as scattered showers of varying intensity. Estimated precipitation: 0.27 in (6.875 mm). More sun than clouds. Wind: 5 mph (9 km/h). |
| Time | Skies | Conditions | Temp | Wind | Humidity | Soil Moisture |
| 23:00 02:00 | | Clear. | 61°F (16°C) | 2 mph (3 km/h) | 86% | 0.255% |
| 02:00 05:00 | | Clear. | 59°F (15°C) | 1 mph (1 km/h) | 94% | 0.255% |
| 05:00 08:00 | | Sunny. | 61°F (16°C) | 1 mph (2 km/h) | 91% | 0.255% |
| 08:00 11:00 | | Mostly sunny, with a few passing clouds. | 73°F (23°C) | 4 mph (7 km/h) | 67% | 0.252% |
| 11:00 14:00 | | Overcast. | 80°F (27°C) | 5 mph (9 km/h) | 56% | 0.248% |
| 14:00 17:00 | | Sunny. Precipitation: 0 in (0.0625 mm). | 75°F (24°C) | 4 mph (6 km/h) | 71% | 0.247% |
| 17:00 20:00 | | Partly cloudy. Precipitation: 0.23 in (5.75 mm). | 68°F (20°C) | 5 mph (8 km/h) | 96% | 0.295% |
| 20:00 23:00 | | Chance of rain. Precipitation: 0.04 in (1.0625 mm). | 64°F (18°C) | 4 mph (6 km/h) | 98% | 0.285% |
| Sunday, September 22 | sunrise: 06:58 sunset: 19:09 |
| Low around 61°F (16°C), high around 67°F (20°C). Chance of light rain before sunrise (between 2 am and 5 am) and again in the morning and afternoon (between 8 am and 5 pm). Estimated precipitation: 0.1 in (2.5 mm). Overcast skies. Wind: 6 mph (9 km/h). |
| Time | Skies | Conditions | Temp | Wind | Humidity | Soil Moisture |
| 23:00 02:00 | | Overcast. Precipitation: 0.01 in (0.375 mm). | 65°F (18°C) | 3 mph (4 km/h) | 97% | 0.28% |
| 02:00 05:00 | | Chance of light rain. Precipitation: 0.01 in (0.25 mm). | 64°F (18°C) | 2 mph (4 km/h) | 98% | 0.277% |
| 05:00 08:00 | | Overcast. Precipitation: 0.01 in (0.3125 mm). | 64°F (18°C) | 4 mph (6 km/h) | 99% | 0.277% |
| 08:00 11:00 | | Chance of light rain. Precipitation: 0.04 in (0.9375 mm). | 63°F (17°C) | 6 mph (9 km/h) | 97% | 0.281% |
| 11:00 14:00 | | Chance of light rain. Precipitation: 0.01 in (0.25 mm). | 62°F (16°C) | 4 mph (6 km/h) | 95% | 0.277% |
| 14:00 17:00 | | Chance of light rain. Precipitation: 0.01 in (0.25 mm). | 61°F (16°C) | 2 mph (4 km/h) | 95% | 0.275% |
| 17:00 20:00 | | Overcast. | 61°F (16°C) | 2 mph (4 km/h) | 96% | 0.273% |
| 20:00 23:00 | | Overcast. Precipitation: 0 in (0.125 mm). | 61°F (16°C) | 3 mph (5 km/h) | 97% | 0.271% |
| Monday, September 23 | sunrise: 06:59 sunset: 19:07 |
| Low around 59°F (15°C), high around 64°F (18°C). Chance of rain late in the afternoon (between 2 pm and 5 pm). Estimated precipitation: 0.07 in (1.875 mm). Overcast skies. Wind: 9 mph (14 km/h). |
| Time | Skies | Conditions | Temp | Wind | Humidity | Soil Moisture |
| 23:00 02:00 | | Overcast. | 60°F (15°C) | 5 mph (7 km/h) | 94% | 0.27% |
| 02:00 05:00 | | Overcast. | 60°F (15°C) | 6 mph (10 km/h) | 95% | 0.268% |
| 05:00 08:00 | | Overcast. Precipitation: 0.05 in (1.1875 mm). | 59°F (15°C) | 8 mph (13 km/h) | 97% | 0.275% |
| 08:00 11:00 | | Overcast. | 59°F (15°C) | 9 mph (14 km/h) | 93% | 0.272% |
| 11:00 14:00 | | Overcast. | 62°F (16°C) | 8 mph (12 km/h) | 88% | 0.27% |
| 14:00 17:00 | | Chance of light rain. Precipitation: 0.01 in (0.375 mm). | 64°F (18°C) | 4 mph (6 km/h) | 92% | 0.268% |
| 17:00 20:00 | | Overcast. Precipitation: 0.01 in (0.3125 mm). | 63°F (17°C) | 3 mph (4 km/h) | 96% | 0.268% |
| 20:00 23:00 | | Overcast. | 62°F (17°C) | 4 mph (7 km/h) | 94% | 0.266% |
| Tuesday, September 24 | sunrise: 07:00 sunset: 19:05 |
| Low around 59°F (15°C), high around 64°F (18°C). Chance of rain all night and almost all day, except late morning from 8 am to 11 am. The precipitation may fall as scattered showers of varying intensity. Estimated precipitation: 0.52 in (13.3125 mm). Overcast skies. Wind: 4 mph (7 km/h). |
| Time | Skies | Conditions | Temp | Wind | Humidity | Soil Moisture |
| 23:00 02:00 | | Chance of rain. Precipitation: 0.07 in (1.75 mm). | 60°F (16°C) | 3 mph (5 km/h) | 96% | 0.281% |
| 02:00 05:00 | | Chance of light rain. Precipitation: 0.03 in (0.75 mm). | 60°F (15°C) | 3 mph (5 km/h) | 94% | 0.278% |
| 05:00 08:00 | | Chance of scattered rain showers. Precipitation: 0.06 in (1.4375 mm). | 60°F (16°C) | 2 mph (3 km/h) | 97% | 0.287% |
| 08:00 11:00 | | Overcast. Precipitation: 0.07 in (1.75 mm). | 60°F (16°C) | 3 mph (4 km/h) | 98% | 0.292% |
| 11:00 14:00 | | Chance of light rain. Precipitation: 0 in (0.125 mm). | 64°F (18°C) | 2 mph (3 km/h) | 93% | 0.284% |
| 14:00 17:00 | | Chance of scattered rain showers. Precipitation: 0.08 in (2 mm). | 63°F (17°C) | 3 mph (4 km/h) | 98% | 0.295% |
| 17:00 20:00 | | Chance of scattered rain showers. Precipitation: 0.1 in (2.5625 mm). | 62°F (17°C) | 4 mph (6 km/h) | 99% | 0.3% |
| 20:00 23:00 | | Chance of scattered rain showers. Precipitation: 0.12 in (2.9375 mm). | 61°F (16°C) | 4 mph (7 km/h) | 99% | 0.309% |
| Wednesday, September 25 | sunrise: 07:01 sunset: 19:04 |
| Low around 61°F (16°C), high around 69°F (21°C). Chance of rain during the afternoon (between 11 am and 5 pm). The precipitation may fall as scattered showers of varying intensity. Estimated precipitation: 0.29 in (7.3125 mm). Overcast skies. Wind: 5 mph (7 km/h). |
| Time | Skies | Conditions | Temp | Wind | Humidity | Soil Moisture |
| 23:00 02:00 | | Overcast. Precipitation: 0.03 in (0.6875 mm). | 61°F (16°C) | 4 mph (6 km/h) | 99% | 0.302% |
| 02:00 05:00 | | Overcast. | 61°F (16°C) | 3 mph (5 km/h) | 99% | 0.294% |
| 05:00 08:00 | | Overcast. Precipitation: 0.01 in (0.1875 mm). | 61°F (16°C) | 3 mph (4 km/h) | 99% | 0.291% |
| 08:00 11:00 | | Overcast. Precipitation: 0.01 in (0.1875 mm). | 63°F (17°C) | 3 mph (4 km/h) | 97% | 0.288% |
| 11:00 14:00 | | Chance of light rain. Precipitation: 0.02 in (0.5 mm). | 66°F (19°C) | 1 mph (2 km/h) | 94% | 0.287% |
| 14:00 17:00 | | Chance of scattered rain showers. Precipitation: 0.06 in (1.5 mm). | 69°F (20°C) | 2 mph (4 km/h) | 86% | 0.297% |
| 17:00 20:00 | | Overcast. Precipitation: 0.16 in (4.125 mm). | 62°F (17°C) | 4 mph (7 km/h) | 95% | 0.319% |
| 20:00 23:00 | | Overcast. Precipitation: 0 in (0.125 mm). | 61°F (16°C) | 5 mph (7 km/h) | 99% | 0.305% |
| Thursday, September 26 | sunrise: 07:02 sunset: 19:02 |
| Low around 57°F (14°C), high around 63°F (17°C). Chance of rain all day. The precipitation may fall as scattered showers of varying intensity. Estimated precipitation: 0.73 in (18.625 mm). Overcast skies. Wind: 8 mph (12 km/h). |
| Time | Skies | Conditions | Temp | Wind | Humidity | Soil Moisture |
| 23:00 02:00 | | Chance of scattered rain showers. Precipitation: 0.07 in (1.875 mm). | 60°F (16°C) | 6 mph (9 km/h) | 96% | 0.316% |
| 02:00 05:00 | | Overcast. Precipitation: 0.08 in (2.125 mm). | 60°F (16°C) | 3 mph (5 km/h) | 97% | 0.316% |
| 05:00 08:00 | | Chance of scattered rain showers. Precipitation: 0.08 in (1.9375 mm). | 60°F (16°C) | 4 mph (7 km/h) | 97% | 0.319% |
| 08:00 11:00 | | Chance of scattered rain showers. Precipitation: 0.05 in (1.3125 mm). | 62°F (17°C) | 5 mph (8 km/h) | 95% | 0.316% |
| 11:00 14:00 | | Chance of scattered rain showers. Precipitation: 0.1 in (2.4375 mm). | 62°F (17°C) | 6 mph (9 km/h) | 93% | 0.322% |
| 14:00 17:00 | | Chance of scattered rain showers. Precipitation: 0.06 in (1.4375 mm). | 62°F (17°C) | 7 mph (12 km/h) | 94% | 0.319% |
| 17:00 20:00 | | Chance of rain. Precipitation: 0.05 in (1.1875 mm). | 58°F (15°C) | 7 mph (11 km/h) | 97% | 0.316% |
| 20:00 23:00 | | Chance of rain. Precipitation: 0.25 in (6.3125 mm). | 57°F (14°C) | 8 mph (12 km/h) | 97% | 0.346% |
| Friday, September 27 | sunrise: 07:03 sunset: 19:00 |
| Low around 55°F (13°C), high around 58°F (15°C). Chance of rain in the morning and early in the afternoon (before 2 am and from 5 am to 2 pm). Estimated precipitation: 0.24 in (6.125 mm). Overcast skies. Wind: 8 mph (13 km/h). |
| Time | Skies | Conditions | Temp | Wind | Humidity | Soil Moisture |
| 23:00 02:00 | | Chance of rain. Precipitation: 0.14 in (3.625 mm). | 57°F (14°C) | 8 mph (12 km/h) | 96% | 0.336% |
| 02:00 05:00 | | Overcast. Precipitation: 0.01 in (0.3125 mm). | 57°F (14°C) | 8 mph (13 km/h) | 94% | 0.323% |
| 05:00 08:00 | | Chance of light rain. Precipitation: 0.02 in (0.4375 mm). | 56°F (13°C) | 6 mph (10 km/h) | 96% | 0.32% |
| 08:00 11:00 | | Chance of rain. Precipitation: 0.04 in (1 mm). | 57°F (14°C) | 7 mph (11 km/h) | 95% | 0.32% |
| 11:00 14:00 | | Chance of light rain. Precipitation: 0.03 in (0.6875 mm). | 56°F (13°C) | 5 mph (8 km/h) | 95% | 0.318% |
| 14:00 17:00 | | Overcast. Precipitation: 0 in (0.0625 mm). | 57°F (14°C) | 4 mph (7 km/h) | 93% | 0.312% |
| 17:00 20:00 | | Overcast. | 55°F (13°C) | 4 mph (7 km/h) | 94% | 0.308% |
| 20:00 23:00 | | Overcast. | 55°F (13°C) | 2 mph (4 km/h) | 93% | 0.305% |
| Saturday, September 28 | sunrise: 07:04 sunset: 18:59 |
| Low around 55°F (13°C), high around 65°F (18°C). Estimated precipitation: 0.01 in (0.1875 mm). Mostly cloudy skies. Wind: 7 mph (12 km/h). |
| Time | Skies | Conditions | Temp | Wind | Humidity | Soil Moisture |
| 23:00 02:00 | | Overcast. Precipitation: 0 in (0.0625 mm). | 55°F (13°C) | 3 mph (5 km/h) | 94% | 0.302% |
| 02:00 05:00 | | Overcast. Precipitation: 0 in (0.0625 mm). | 55°F (13°C) | 3 mph (5 km/h) | 94% | 0.3% |
| 05:00 08:00 | | Overcast. | 55°F (13°C) | 3 mph (5 km/h) | 93% | 0.298% |
| 08:00 11:00 | | Overcast. | 61°F (16°C) | 6 mph (9 km/h) | 78% | 0.296% |
| 11:00 14:00 | | Overcast. Precipitation: 0 in (0.0625 mm). | 64°F (18°C) | 7 mph (12 km/h) | 69% | 0.293% |
| 14:00 17:00 | | Overcast. | 65°F (18°C) | 3 mph (4 km/h) | 67% | 0.29% |
| 17:00 20:00 | | Mostly clear. | 59°F (15°C) | 1 mph (1 km/h) | 81% | 0.29% |
| 20:00 23:00 | | Overcast. | 57°F (14°C) | 2 mph (4 km/h) | 85% | 0.289% |
Mercersburg (latitude 39°50'N, longitude 077°54'W)
Local Time:
Mercersburg is in the "America/New_York" timezone.
The "America/New_York" timezone uses a Standard Time (ST) / Daylight Saving Time (DST) alternation scheme, and it currently is in DST (since Sunday, 10 March 2024, 03:00 AM local time). During DST, the timezone abbreviation is EDT and the offset to Universal Time (UTC, GMT or Zulu) is -4:00 hours.
Mercersburg will exit DST (returning to standard time) on Sunday, 3 November 2024, at 02:00 AM local time, when clocks will be turned backward 1 hour to Sunday, 3 November 2024, 01:00 AM local standard time. During ST, the timezone abbreviation is EST and the offset to UTC will be -5:00 hours.