0 in

Rain Today

Rain Last Hour
0 in

Recorded at Gaithersburg - Montgomery County Airport Updated 55 mins ago (10.7 miles away)

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Real-Time Extremes

Hottest 84.1 °F
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Coldest 15.7 °F
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Windiest 62.2 mph
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Wettest (Last Hour) 0.7 in
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Most Humid 100%
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Least Humid 15%
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Highest Pressure 1027.4 hPa
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Lowest Pressure 983 hPa
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Potomac Rainfall Forecast

Today 14 Oct
15%
Thu 15 Oct
75%
Fri 16 Oct
55%
Sat 17 Oct
15%
Sun 18 Oct
No Rain
Mon 19 Oct
No Rain
Tue 20 Oct
No Rain

Potomac Rainfall Statistics

October Rainfall

Gaithersburg - Montgomery County Airport (10.6 miles)

Total Rainfall 2026
30.8 in
Daily Average 2026
0.1 in
Wettest Day 11 October, 2026
2.7 in
Wet Days 2026
97/287 (34%)
Total Rainfall September
3.8 in
Daily Average September
0.1 in
Wettest Day 22 September, 2026
1.3 in
Wet Days September
13/30 (43%)
Total Rainfall October
3.3 in
Daily Average October
0.3 in
Wettest Day 11 October, 2026
2.7 in
Wet Days October
5/14 (36%)

Climate (2021–2025)

Gaithersburg - Montgomery County Airport (10.6 miles)

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Annual Average 2021–2025
26 in
Monthly Average 2021–2026
2.3 in
Daily Average 2021–2026
0.1 in
Wettest Day 11 October, 2026
2.7 in

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