Frederick County weather, town by town
27 places in Frederick 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 1948 to 2026. Station extremes, not official state records.
Frederick County Weather Facts
Frederick County has 27 places on myweatherrock (16 census-designated places, 8 towns, 2 cities, 1 villages), each with its own live forecast, hourly timeline, ten day outlook and radar. The hottest day in the station records is 103°F at Emmitsburg 2 Se on July 3, 1966. The coldest night is -27°F at Emmitsburg 2 Se on January 21, 1994. The wettest day brought 8.26 inches of rain at Purcellville on June 21, 1972. The biggest single-day snow measured 27.99 inches at Middletown 1.8 Nne on January 23, 2016. Those are station measurements from NOAA's daily records, 1948 to 2026, not official state records. By area the largest place is Frederick, about 24 square miles.
About Frederick County weather
The map on the Now tab shows every Frederick 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 10 Frederick County towns with station normals, the warmest month is July, when the day usually reaches 84°F, and the coldest is January, when the night usually falls to 24°F. May is the wettest, with rain on about 12 days. July afternoons run from about 83°F in Graceham to 86°F in Emmitsburg.
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.
Frederick County weather records
Measured at the NOAA stations serving these towns, daily records 1948 to 2026. Station extremes, not official state records.
Common questions about Frederick County weather
- What is the hottest temperature recorded at a Frederick County station?
- 103°F at Emmitsburg 2 Se on July 3, 1966, in the NOAA daily station records myweatherrock holds (1948 to 2026).
- What is the coldest temperature recorded at a Frederick County station?
- -27°F at Emmitsburg 2 Se on January 21, 1994.
- What is the most rain a Frederick County station has measured in one day?
- 8.26 inches at Purcellville on June 21, 1972.
- What is the biggest one-day snowfall at a Frederick County station?
- 27.99 inches at Middletown 1.8 Nne on January 23, 2016.
- How many Frederick County towns have a weather page here?
- 27: 16 census-designated places, 8 towns, 2 cities, 1 villages. 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 Frederick 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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