Baltimore County weather, town by town
32 places in Baltimore County, Maryland, each with its own live forecast and radar, and where a station sits close enough, measured weather records.
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Measured at the NOAA stations serving these towns, daily records 1939 to 2026. Station extremes, not official state records.
Baltimore County Weather Facts
Baltimore County has 32 places on myweatherrock (32 census-designated places), each with its own live forecast, hourly timeline, ten day outlook and radar. The hottest day in the station records is 108°F at Maryland Sci Ctr on July 22, 2011. The coldest night is -7°F at Baltimore-Washington Intl Ap on January 29, 1963. The wettest day brought 7.7 inches of rain at Ellicott City 1.3 Wsw on September 8, 2011. The biggest single-day snow measured 32.01 inches at Elkridge 1.8 W on February 6, 2010. Those are station measurements from NOAA's daily records, 1939 to 2026, not official state records. By area the largest place is Towson, about 14 square miles.
About Baltimore County weather
The map on the Now tab shows every Baltimore County town's current temperature from our own server, one dot per town. Tap any dot, or type a town above, for that town's full forecast.
What the weather is usually like
Across the 32 Baltimore County towns with station normals, the warmest month is July, when the day usually reaches 87°F, and the coldest is January, when the night usually falls to 26°F. May is the wettest, with rain on about 10 days. July afternoons run from about 85°F in Carney to 90°F in Baltimore Highlands. January nights run from about 25°F in Carney to 30°F in Baltimore Highlands.
Means of the 1991 to 2020 station normals serving these towns, as published by NOAA; each town's page carries its own.
Where these numbers come from
- Current conditions and forecast: NOAA forecast grids decoded on our own server, corrected against the nearest reporting station and our own radar. Open-Meteo is consulted only as a fallback when our server is silent.
- Records: computed by myweatherrock from NOAA GHCN-Daily station records at the stations serving these towns. Measurements, not estimates.
- Warnings and alerts: the National Weather Service, passed through unchanged.
Baltimore County weather records
Measured at the NOAA stations serving these towns, daily records 1939 to 2026. Station extremes, not official state records.
Common questions about Baltimore County weather
- What is the hottest temperature recorded at a Baltimore County station?
- 108°F at Maryland Sci Ctr on July 22, 2011, in the NOAA daily station records myweatherrock holds (1939 to 2026).
- What is the coldest temperature recorded at a Baltimore County station?
- -7°F at Baltimore-Washington Intl Ap on January 29, 1963.
- What is the most rain a Baltimore County station has measured in one day?
- 7.7 inches at Ellicott City 1.3 Wsw on September 8, 2011.
- What is the biggest one-day snowfall at a Baltimore County station?
- 32.01 inches at Elkridge 1.8 W on February 6, 2010.
- How many Baltimore County towns have a weather page here?
- 32: 32 census-designated places. Each page carries current conditions, the hourly timeline, the ten day outlook, radar, and where a station sits close enough, measured records.
- Where does the Baltimore County forecast come from?
- NOAA forecast grids (the National Weather Service digital forecast, the National Blend of Models, HRRR and GFS) decoded on our own server, corrected against the nearest reporting station and our own radar. Open-Meteo is consulted only as a fallback when our server is silent.
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