Currently: 57 °F. Light rain. Fog. (Weather station: Washington County Regional Airport, USA). See more current weatherMercersburg Extended Forecast with high and low temperatures
°F
Time
Wind
(mph)
(mph)
Rain/Snow
()
()
Temp
(°F)
(°F)
43
47
51
55
59
63
67
71
75
79
May 18 – May 24
0.63
Lo:53
Wed, 21
Hi:59
14
0.2
Lo:53
Thu, 22
Hi:63
12
0.06
Lo:49
Fri, 23
Hi:64
17
0.03
Lo:44
Sat, 24
Hi:65
15
May 25 – May 31
Lo:45
Sun, 25
Hi:70
4
0.64
Lo:50
Mon, 26
Hi:64
4
0.88
Lo:54
Tue, 27
Hi:58
8
0.46
Lo:53
Wed, 28
Hi:67
5
0.17
Lo:54
Thu, 29
Hi:66
12
0.07
Lo:52
Fri, 30
Hi:69
16
Lo:51
Sat, 31
Hi:71
13
Jun 1 – Jun 7
Lo:52
Sun, 1
Hi:75
10
Lo:58
Mon, 2
Hi:80
3
Lo:64
Tue, 3
Hi:80
3
Lo:65
Wed, 4
Hi:81
4
2 Week Extended Forecast in Mercersburg, Pennsylvania, USA
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| Conditions | Comfort | Precipitation | Sun | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Day | Temperature | Weather | Feels Like | Wind | Humidity | Chance | Amount | UV | Sunrise | Sunset | ||
| Wed May 21 |  | 59 / 53 °F | Rain. Overcast. | 52 °F | 14 mph | ↑ | 90% | 99% | 0.63" | 3 (Moderate) | 5:51 am | 8:25 pm |
| Thu May 22 | | 63 / 53 °F | Sprinkles. Overcast. | 62 °F | 12 mph | ↑ | 71% | 74% | 0.20" | 3 (Moderate) | 5:50 am | 8:26 pm |
| Fri May 23 | | 64 / 49 °F | Sprinkles. Mostly cloudy. | 62 °F | 17 mph | ↑ | 54% | 41% | 0.06" | 3 (Moderate) | 5:50 am | 8:27 pm |
| Sat May 24 | | 65 / 44 °F | Sprinkles. Mostly cloudy. | 64 °F | 15 mph | ↑ | 48% | 38% | 0.03" | 3 (Moderate) | 5:49 am | 8:27 pm |
| Sun May 25 |  | 70 / 45 °F | Cloudy. | 68 °F | 4 mph | ↑ | 40% | 2% | - | 3 (Moderate) | 5:48 am | 8:28 pm |
| Mon May 26 | | 64 / 50 °F | Rain late. Overcast. | 57 °F | 4 mph | ↑ | 84% | 79% | 0.64" | 3 (Moderate) | 5:48 am | 8:29 pm |
| Tue May 27 |  | 58 / 54 °F | Heavy rain. Overcast. | 55 °F | 8 mph | ↑ | 95% | 79% | 0.88" | 3 (Moderate) | 5:47 am | 8:30 pm |
| Wed May 28 |  | 67 / 53 °F | Passing showers. Overcast. | 67 °F | 5 mph | ↑ | 97% | 65% | 0.46" | 3 (Moderate) | 5:47 am | 8:31 pm |
| Thu May 29 | | 66 / 54 °F | Passing showers. Overcast. | 66 °F | 12 mph | ↑ | 94% | 63% | 0.17" | 3 (Moderate) | 5:46 am | 8:31 pm |
| Fri May 30 |  | 69 / 52 °F | Isolated tstorms late. Broken clouds. | 68 °F | 16 mph | ↑ | 67% | 53% | 0.07" | 5 (Moderate) | 5:46 am | 8:32 pm |
| Sat May 31 |  | 71 / 51 °F | Sunny. | 68 °F | 13 mph | ↑ | 57% | 6% | - | 7 (High) | 5:45 am | 8:33 pm |
| Sun Jun 1 |  | 75 / 52 °F | Broken clouds. | 77 °F | 10 mph | ↑ | 61% | 7% | - | 5 (Moderate) | 5:45 am | 8:34 pm |
| Mon Jun 2 | | 80 / 58 °F | Sunny. | 81 °F | 3 mph | ↑ | 56% | 4% | - | 7 (High) | 5:44 am | 8:34 pm |
| Tue Jun 3 | | 80 / 64 °F | Sunny. | 82 °F | 3 mph | ↑ | 63% | 5% | - | 7 (High) | 5:44 am | 8:35 pm |
| Wed Jun 4 | | 81 / 65 °F | Sunny. | 82 °F | 4 mph | ↑ | 62% | 5% | - | 7 (High) | 5:44 am | 8:36 pm |
| * Updated Wednesday, May 21, 2025 5:23:52 am Mercersburg time - Weather by CustomWeather, © 2025 | ||||||||||||