Spring (March–May): Average 46–63°F, mild climate, but may experience fluctuating temperatures, moderate rainfall. Common activities: Outdoor walks, flower viewing. Recommended clothing: Light jacket, long-sleeved shirt, comfortable shoes.
Summer (June–August): Average 72–77°F, warm and humid, occasional thunderstorms. Common activities: Swimming, picnics, outdoor BBQs. Recommended clothing: Light and breathable clothing, sun hat, sunglasses.
Autumn (September–November): Average 47–67°F, pleasant climate, cool and comfortable, rainfall gradually decreases. Common activities: Maple leaf viewing, hiking. Recommended clothing: Light jacket, long-sleeved shirt, comfortable shoes.
Winter (December–February): Average 36–41°F, cold and humid, occasional snowfall. Common activities: Indoor activities, skiing (requires travel to higher altitudes). Recommended clothing: Warm coat, hat, scarf, gloves.
Weather in Gaithersburg
Annual average temperature: approx. 56.5°F / Annual rainfall: approx. 981 mm / Summer humidity: 60%–75% / Rainiest month: January
Gaithersburg weather by month
Month
Temperature (°F)
Rainfall (mm)
January
36.1°F
109.3
February
41°F
62.1
March
46.8°F
85.4
April
56.5°F
80
May
63.5°F
95.8
June
72.1°F
60.4
July
77.5°F
93.5
August
75.6°F
83.8
September
67.1°F
101.2
October
56.3°F
34.9
November
47.3°F
71.5
December
37.8°F
104
7-day weather forecast for Gaithersburg
11/6
Friday
Overcast
70°F/54.5°F
11/7
Saturday
Sunny
54.9°F/42.1°F
11/8
Sunday
Sunny
60°F/41.8°F
11/9
Monday
Sunny
61.6°F/42.7°F
11/10
Tuesday
Sunny
68.8°F/41.5°F
11/11
Wednesday
Sunny
64.6°F/45.7°F
11/12
Thursday
Patchy rain nearby
55.5°F/43.7°F
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