Skip to content
Destinations
Weather & climate
Nature
Outdoors
Culture
Events
Sky & live
Gaithersburg
Thomas and Company Cannery
Thomas and Company Cannery
United States Department of Energy complex
United States Department of Energy complex
Rockville Railroad Station
Rockville Railroad Station
Beall-Dawson House
Beall-Dawson House
Maryland, United States

Gaithersburg

Gaithersburg is a town in Maryland, United States. It has a population of about 69,101 (2021). The climate is classified as humid subtropical (Köppen Cfa), with rain spread through the year and no real dry season.

Now56°F
Best timeApr · Sep–Oct
Population69,101
Local time09:32
39.14° N, 77.20° WElevation 502 ftUTC−4 · Eastern Daylight Time
Postal codes20813, 20827 …
The year in Gaithersburgweather score
JanFebMarAprMayJunJulAugSepOctNovDec77October
October: high / low67° / 47°
Rain this month93mm
Best timeApr · Sep–Oct

Best: Apr · Sep–Oct. Warmth, sunshine and dry days, month by month.

Gaithersburg at a glance

Best time to visitApr · Sep–Oct

The months with the highest weather score

Warmest month87°F

Average high in July

Coolest month25°F

Average low in January

Wettest monthJuly

105 mm of rain

Driest monthFebruary

75 mm of rain

Monuments nearby10+

within 8.3 km

Weather in Gaithersburg

Now and the next ten days. The 14 and 30-day outlooks are one click away.

14-day forecast
56°F

Sunny · wind 17 km/h · humidity 34%

Today hour by hour
Today22 Oct65°40°
Fri23 Oct60°42°
Sat24 Oct60°38°
Sun25 Oct63°39°
Mon26 Oct67°41°
Tue27 Oct65°48°
Wed28 Oct62°42°
Thu29 Oct68°45°
Fri30 Oct58°45°
Sat31 Oct59°36°

When to go to Gaithersburg

Each month's weather score (warmth, sun, dry days) with its temperatures and rain.

Climate month by month
JanFebMarAprMayJunJulAugSepOctNovDec
Score353441716654445074775332
High42°45°54°66°74°82°87°85°78°67°56°46°
Low25°27°34°43°53°62°67°65°58°47°37°30°
Rain (mm)787592941161051059798938487
Wet days881011131414139989

What's on in Gaithersburg

Concerts, football matches, the public holidays ahead and the town's festivals through the year.

Monuments and museums in Gaithersburg

All monuments

More museums: Fire Museum · Gaithersburg Community Museum

Outdoors around Gaithersburg

Hiking routes from the town, and what there is to do within 15 km: huts, viewpoints, climbing, camping, ski areas and dive sites.

Things to do
Movement RockvilleClimbing
1 km
The Water Park at Bohrer ParkWater parks
1.3 km
Needwood Golf CourseGolf courses
1.9 km
Overlook rock, lowerViewpoints
2 km
Overlook rock, highViewpoints
2.2 km
Woodmont Country ClubGolf courses
2.7 km

Nature around Gaithersburg

Nature in United States

Wildlife in October

The birds and mammals of United States seen most this month, compared with the rest of their year.

The sky over Gaithersburg

Eclipses and meteor showers

Earthquakes around Gaithersburg

The last 30 days within 300 km, and the record since 1950.

Earthquakes

Universities and research institutes

ClonexpressUniversity or college · founded 1992

Towns and villages around Gaithersburg

Each with its own page: weather, climate and the best time to visit.

Gaithersburg from above

Postal codes

20813208272084820859208752087720884208892089420897–20899

Getting to Gaithersburg

Washington Dulles International AirportIAD
31 km
Ronald Reagan Washington National AirportDCA
35 km
Baltimore/Washington International Thurgood Marshall AirportBWI
46 km
GaithersburgRailway station
0.8 km
Metropolitan GroveRailway station
2.3 km
Washington GroveRailway station
2.2 km
Georgetown Ferry LandingAlexandria City Marina (Old Town) Ferry Landing · The Wharf Ferry Landing
30 km

Places near Gaithersburg

Places with a climate like Gaithersburg

Matched month by month on temperature, rain and sunshine.

Frequently asked questions

When is the best time to visit Gaithersburg?
Based on 30-year climate normals, April, September and October offer the best balance of comfortable temperatures, low rainfall and sunshine in Gaithersburg.
What is the hottest month in Gaithersburg?
July is the warmest month, with average highs of 87°F and lows of 67°F.
What is the coldest month in Gaithersburg?
January is the coldest month, with average highs of 42°F and lows of 25°F.
What is the rainiest month in Gaithersburg?
July is the wettest month with about 4.1 in of precipitation on 14 wet days.
What is the postal code of Gaithersburg?
Gaithersburg has 12 postal codes: 20813, 20827, 20848, 20859, 20875, 20877, 20884, 20889, 20894, 20897–20899.