Rockwall County weather, town by town
6 places in Rockwall County, Texas, 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 1900 to 2025. Station extremes, not official state records.
Rockwall County Weather Facts
Rockwall County has 6 places on myweatherrock (6 cities), each with its own live forecast, hourly timeline, ten day outlook and radar. The hottest day in the station records is 116°F at Greenville Kgvl Radio on August 10, 1936. The coldest night is -7°F at Terrell Muni Ap on February 16, 2021. The wettest day brought 7.85 inches of rain at Lavon Dam on September 6, 1967. The biggest single-day snow measured 3.19 inches at Rockwall 3.1 Ssw on March 5, 2015. Those are station measurements from NOAA's daily records, 1900 to 2025, not official state records. By area the largest place is Rockwall, about 30 square miles.
About Rockwall County weather
The map on the Now tab shows every Rockwall 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 6 Rockwall County towns with station normals, the warmest month is August, when the day usually reaches 97°F, and the coldest is January, when the night usually falls to 36°F. May is the wettest, with rain on about 10 days. January nights run from about 33°F in Royse to 36°F in Fate.
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.
Rockwall County weather records
Measured at the NOAA stations serving these towns, daily records 1900 to 2025. Station extremes, not official state records.
Common questions about Rockwall County weather
- What is the hottest temperature recorded at a Rockwall County station?
- 116°F at Greenville Kgvl Radio on August 10, 1936, in the NOAA daily station records myweatherrock holds (1900 to 2025).
- What is the coldest temperature recorded at a Rockwall County station?
- -7°F at Terrell Muni Ap on February 16, 2021.
- What is the most rain a Rockwall County station has measured in one day?
- 7.85 inches at Lavon Dam on September 6, 1967.
- What is the biggest one-day snowfall at a Rockwall County station?
- 3.19 inches at Rockwall 3.1 Ssw on March 5, 2015.
- How many Rockwall County towns have a weather page here?
- 6: 6 cities. 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 Rockwall 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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