0in

Rain Today

Rain Last Hour
0in

Recorded at Gaithersburg - Montgomery County Airport Updated 26 mins ago (5.4 miles away)

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Real-Time Extremes

Hottest 89.5 °F
Phoenix, Phoenix Sky Harbor International Airport, AZ
Coldest 26.5 °F
Gulkana, Gulkana Airport, AK
Windiest 27.5mph
Point Lay, Point Lay LRRS Airport, AK
Wettest (Last Hour) 0.5in
Winona, Winona Municipal Airport-Max Conrad Field, MN
Most Humid 100%
Metter Municipal Airport, GA
Least Humid 11%
Harry Reid International Airport, NV
Highest Pressure 1039.3 hPa
Salida - Monarch Pass, CO
Lowest Pressure 991.9 hPa
Shemya, Eareckson AFB, AK

Trending Locations

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Olney Rainfall Forecast

Today 2 Sep
60%
Thu 3 Sep
70%
Fri 4 Sep
55%
Sat 5 Sep
25%
Sun 6 Sep
15%
Mon 7 Sep
15%
Tue 8 Sep
15%

Olney Rainfall Statistics

September Rainfall

Gaithersburg - Montgomery County Airport (5 miles)

Total Rainfall 2026
23.7in
Daily Average 2026
0.1in
Wettest Day 21 July, 2026
1.6in
Wet Days 2026
79/245 (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
–
Daily Average September
–
Wettest Day 2 September, 2026
–
Wet Days September
–

Climate (2021–2025)

Gaithersburg - Montgomery County Airport (5 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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