Nearby locations
Montgomery County, Maryland, United States
Gaithersburg, Maryland, United States
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Weather in Montgomery County, United States

76°
Partly cloudy
Feels like 76°
·
High77°Low49°
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Air quality

Full Details
0
112
500
Air quality:Unhealthy for sensitive groups

Pollen index

Full Details
Tree
4/5
012345
Weed
0/5
012345
Grass
0/5
012345

Today's weather summary

The weather in Montgomery County on Thursday, April 18th, is going to be mostly clear for most of the day, with clear skies before dawn.

There is also a chance for cloud overcast before dawn around 3 am.

Weather details for Montgomery County, on Thursday, April 18th:

The highest temperature of the day will be 77°F at about 4 pm. The day will have very high relative humidity, with average humidity of 70%, ranging from 38% to a maximum value of 98% at about 7 am. The wind will be breezy, and will get up to 10 mph at 1 pm, blowing from the north-west. The cloud coverage will range from 1% around midnight to as high as 100% around 8 pm with an average of 45%.

There is no probability for any precipitation throughout the day. The dew point will range from 48°F up to a maximum value of 59°F around 1 am.

The visibility is expected to be good with average visibility of 9 mi throughout the day. Atmospheric pressure will be normal with average pressure of 1014 hPa. Sunrise will be at 6:27 am, and sunset at 7:46 pm. The day will have 13 hours and 19 minutes of daylight.

Air quality forecast for Montgomery County, on Thursday, April 18th:

On average, the air quality on this day will be moderate, meaning that air quality is acceptable. However, there may be a risk for some people, particularly those who are unusually sensitive to air pollution. According to our index, ranging from 0 to 500, the air quality is going to be between values of 40 and 121.

Pollen forecast for Montgomery County, on Thursday, April 18th:

Tree pollen on this day is expected to have very high risk. There's no risk of weed pollen, and as for grass pollen, this day is expected to have very low risk.

The weather in Montgomery County on Friday, April 19th, is going to be cloudy for most of the day.

Additionally, there will be few clouds before dawn, at about 12 am.

Weather details for Montgomery County, on Friday, April 19th:

The highest temperature during the day will be 62°F at about 4 pm. The day will have very high relative humidity, with average humidity of 72%, ranging from 59% to a maximum value of 80% at about 5 am. The wind will be light, and will get up to 9 mph at 4 pm, blowing from the south-east. The cloud coverage will range from 14% around midnight to as high as 100% around 9 pm with an average of 95%.

There is no probability for any precipitation throughout the day. The dew point will range from 43°F up to a maximum value of 48°F around 8 pm.

The visibility is expected to be good with average visibility of 10 mi throughout the day. Atmospheric pressure will be high with average pressure of 1019 hPa. Sunrise will be at 6:26 am, and sunset at 7:47 pm. The day will have 13 hours and 21 minutes of daylight.

Air quality forecast for Montgomery County, on Friday, April 19th:

On average, the air quality on this day will be good, meaning that air quality is satisfactory, and air pollution poses little or no risk. According to our index, ranging from 0 to 500, the air quality is going to be between values of 28 and 46.

Pollen forecast for Montgomery County, on Friday, April 19th:

Tree pollen on this day is expected to have very high risk. There's no risk of weed pollen, and as for grass pollen, this day is expected to have very low risk.

FAQ

How warm does it get in Montgomery County?
The average annual highest temperature in Montgomery County is 32.8°C (91.0°F), and the July 27th is the hottest day on average.
How cold does it get in Montgomery County?
The average annual lowest temperature in Montgomery County is -6.1°C (21.0°F), and the January 31st is the coldest day on average.
Which month has the most rain in Montgomery County?
The wettest months in Montgomery County are September and July.
What months does it snow in Montgomery County?
The most common time of year for snow is February, January, March and December.