0in

Rain Today

Rain Last Hour
0in

Recorded at Gaithersburg - Montgomery County Airport Updated 31 mins ago (10.7 miles away)

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Real-Time Extremes

Hottest 89.5 °F
Mineral Wells, Mineral Wells Airport, TX
Coldest -7.7 °F
Point Lay, Point Lay LRRS Airport, AK
Windiest 71.4mph
Mount Washington, NH
Wettest (Last Hour) 0.2in
Storm Lake, IA
Most Humid 100%
Hobby Field Airport, OR
Least Humid 26%
Madisonville Municipal Airport, KY
Highest Pressure 1036 hPa
Kulusuk Lufthavn, ME
Lowest Pressure 971.2 hPa
Cape Romanzof, Cape Romanzof LRRS Airport, AK

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Potomac Rainfall Forecast

Today 18 Nov
60%
Wed 19 Nov
85%
Thu 20 Nov
15%
Fri 21 Nov
30%
Sat 22 Nov
55%
Sun 23 Nov
20%
Mon 24 Nov
10%

Potomac Rainfall Statistics

November Rainfall

Gaithersburg - Montgomery County Airport (10.6 miles)

Total Rainfall 2025
2.3in
Daily Average 2025
0.01in
Wettest Day 30 October, 2025
1in
Wet Days 2025
13/322 (4%)
Total Rainfall October
2.1in
Daily Average October
0.1in
Wettest Day 30 October, 2025
1in
Wet Days October
11/31 (35%)
Total Rainfall November
0.2in
Daily Average November
0.01in
Wettest Day 7 November, 2025
0.1in
Wet Days November
2/18 (11%)

Climate (2010–Present)

Gaithersburg - Montgomery County Airport (10.6 miles)

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Annual Average 2020–2024
33.7in
Monthly Average 2020–2025
2.3in
Daily Average 2020–2025
0.1in
Wettest Day 23 June, 2023
2.6in

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