0in

Rain Today

Rain Last Hour
0in

Recorded at Gaithersburg - Montgomery County Airport Updated 51 mins ago (11.9 miles away)

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Real-Time Extremes

Hottest 91.3 °F
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Coldest 30.1 °F
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Windiest 41.4mph
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Wettest (Last Hour) 0.2in
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Most Humid 100%
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Least Humid 11%
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Highest Pressure 1043 hPa
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Lowest Pressure 986.5 hPa
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Barnes Airport Rainfall Forecast

Today 18 Sep
35%
Sat 19 Sep
5%
Sun 20 Sep
75%
Mon 21 Sep
60%
Tue 22 Sep
60%
Wed 23 Sep
50%
Thu 24 Sep
30%

Barnes Airport Rainfall Statistics

September Rainfall

Gaithersburg - Montgomery County Airport (11.8 miles)

Total Rainfall 2026
24.8in
Daily Average 2026
0.1in
Wettest Day 21 July, 2026
1.6in
Wet Days 2026
84/261 (32%)
Total Rainfall August
3.2in
Daily Average August
0.1in
Wettest Day 2 August, 2026
0.6in
Wet Days August
14/31 (45%)
Total Rainfall September
1.1in
Daily Average September
0.1in
Wettest Day 2 September, 2026
0.4in
Wet Days September
5/18 (28%)

Climate (2021–2025)

Gaithersburg - Montgomery County Airport (11.8 miles)

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Annual Average 2021–2025
26in
Monthly Average 2021–2026
2.3in
Daily Average 2021–2026
0.1in
Wettest Day 23 June, 2023
2.6in

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