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Hourly
7 Days
14 Days
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Monthly
Precipitation
Temperature
Wind
Temperature Unit Selection
°Celsius
°Fahrenheit
Monthly Historical Averages
Mercersburg, PA
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June
Average Temperature
High
28°
Feels 29
Low
17°
Feels 17
Average Precipitation
13 Days
Rain amount
84.2mm
Snow amount
0cm
Content continues below
Daily Historical Averages
June 2026
S
M
T
W
T
F
S
1
2
3
28°
4
31°
5
33°
6
32°
7
30°
8
26°
9
27°
10
32°
11
28°
12
34°
13
35°
14
33°
15
34°
16
34°
17
31°
18
19
20
21
22
23
24
25
26
27
28
29
30
Forecast
Wednesday, June 3, 2026
Day
28°
Feels 28
Wind
12 km/h E
Gust
18 km/h
Humidity
23%
P.O.P
10%
Night
14°
Feels 14
Wind
7 km/h NW
Gust
11 km/h
Humidity
74%
P.O.P
0%
Historical Averages
Jun 3
High
Feels
Low
Feels
Precip Frequency
Total Daylight
Humidity
Historical Averages are based on data recorded from 2000 onwards.