Cobb County weather, town by town
10 places in Cobb County, Georgia, 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 1947 to 2026. Station extremes, not official state records.
Cobb County Weather Facts
Cobb County has 10 places on myweatherrock (7 cities, 3 census-designated places), each with its own live forecast, hourly timeline, ten day outlook and radar. The hottest day in the station records is 104°F at Dallas 7 Ne on July 18, 1980. The coldest night is -12°F at Dallas 7 Ne on January 21, 1985. The wettest day brought 8.43 inches of rain at Dallas 7 Ne on September 22, 2009. The biggest single-day snow measured 15 inches at Dallas 7 Ne on March 13, 1993. Those are station measurements from NOAA's daily records, 1947 to 2026, not official state records. By area the largest place is Mableton, about 36 square miles.
About Cobb County weather
The map on the Now tab shows every Cobb 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 5 Cobb County towns with station normals, the warmest month is July, when the day usually reaches 90°F, and the coldest is January, when the night usually falls to 31°F. July is the wettest, with rain on about 12 days. January nights run from about 30°F in Acworth to 33°F in Austell.
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.
Cobb County weather records
Measured at the NOAA stations serving these towns, daily records 1947 to 2026. Station extremes, not official state records.
Common questions about Cobb County weather
- What is the hottest temperature recorded at a Cobb County station?
- 104°F at Dallas 7 Ne on July 18, 1980, in the NOAA daily station records myweatherrock holds (1947 to 2026).
- What is the coldest temperature recorded at a Cobb County station?
- -12°F at Dallas 7 Ne on January 21, 1985.
- What is the most rain a Cobb County station has measured in one day?
- 8.43 inches at Dallas 7 Ne on September 22, 2009.
- What is the biggest one-day snowfall at a Cobb County station?
- 15 inches at Dallas 7 Ne on March 13, 1993.
- How many Cobb County towns have a weather page here?
- 10: 7 cities, 3 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 Cobb 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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