0in

Rain Today

Rain Last Hour
0in

Recorded at Hagerstown, Washington County Regional Airport Updated 22 mins ago (12.5 miles away)

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Real-Time Extremes

Hottest 94.9 °F
Luke Air Force Base / Phoenix, AZ
Coldest 31.9 °F
Chisholm-Hibbing Airport, MN
Windiest 39.1mph
Mount Washington, NH
Wettest (Last Hour) 0.3in
Adak Island, Adak Airport, AK
Most Humid 100%
North Palm Beach County General Aviation Airport, FL
Least Humid 13%
General Wm J Fox Airfield, CA
Highest Pressure 1042 hPa
Salida - Monarch Pass, CO
Lowest Pressure 994.2 hPa
Adak Island, Adak Airport, AK

Trending Locations

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Mercersburg Rainfall Forecast

Today 8 Sep
No Rain
Tue 9 Sep
No Rain
Wed 10 Sep
No Rain
Thu 11 Sep
No Rain
Fri 12 Sep
No Rain
Sat 13 Sep
No Rain
Sun 14 Sep
10%

Mercersburg Rainfall Statistics

September Rainfall

Hagerstown, Washington County Regional Airport (12.4 miles)

Total Rainfall 2025
19.2in
Daily Average 2025
0.1in
Wettest Day 13 May, 2025
2in
Wet Days 2025
87/251 (35%)
Total Rainfall August
1in
Daily Average August
0.03in
Wettest Day 16 August, 2025
0.6in
Wet Days August
7/31 (23%)
Total Rainfall September
0.1in
Daily Average September
0.03in
Wettest Day 4 September, 2025
0.1in
Wet Days September
1/8 (13%)

Climate (2010–Present)

Hagerstown, Washington County Regional Airport (12.4 miles)

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Annual Average 2020–2024
30.5in
Monthly Average 2020–2025
2.5in
Daily Average 2020–2025
0.1in
Wettest Day 1 September, 2021
3.9in

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