0.01in

Rain Today

Rain Last Hour
0in

Recorded at Washington/Reagan National Airport, DC Updated 33 mins ago (1.9 miles away)

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Real-Time Extremes

Hottest 91.3 °F
Phoenix, Phoenix Sky Harbor International Airport, AZ
Coldest 28.3 °F
Anaktuvuk Pass, Anaktuvuk Pass Airport, AK
Windiest 34.4mph
Cape Newenham, Cape Newenham LRRS Airport, AK
Wettest (Last Hour) 0.5in
Mount Airy/Surry County Airport, NC
Most Humid 100%
President Donald J. Trump International Airport, FL
Least Humid 11%
Manti-Ephriam Airport, UT
Highest Pressure 1038.6 hPa
Salida - Monarch Pass, CO
Lowest Pressure 986.5 hPa
Shenandoah Municipal, IA

Trending Locations

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Potomac Rainfall Forecast

Today 22 Sep
85%
Wed 23 Sep
80%
Thu 24 Sep
25%
Fri 25 Sep
10%
Sat 26 Sep
10%
Sun 27 Sep
5%
Mon 28 Sep
No Rain

Potomac Rainfall Statistics

September Rainfall

Washington/Reagan National Airport, DC (1.9 miles)

Total Rainfall 2026
23.9in
Daily Average 2026
0.1in
Wettest Day 25 January, 2026
2in
Wet Days 2026
80/265 (30%)
Total Rainfall August
4.3in
Daily Average August
0.1in
Wettest Day 2 August, 2026
1.7in
Wet Days August
11/31 (35%)
Total Rainfall September
2.3in
Daily Average September
0.1in
Wettest Day 3 September, 2026
1.3in
Wet Days September
4/22 (18%)

Climate (2021–2025)

Washington/Reagan National Airport, DC (1.9 miles)

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Annual Average 2021–2025
39.2in
Monthly Average 2021–2026
3in
Daily Average 2021–2026
0.1in
Wettest Day 9 July, 2022
4.1in

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