San Jacinto County weather, town by town
5 places in San Jacinto 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 1903 to 2026. Station extremes, not official state records.
San Jacinto County Weather Facts
San Jacinto County has 5 places on myweatherrock (3 cities, 2 census-designated places), each with its own live forecast, hourly timeline, ten day outlook and radar. The hottest day in the station records is 110°F at Conroe Montgomery Co Ap on September 4, 2000. The coldest night is 1°F at Huntsville on January 18, 1930. The wettest day brought 12.24 inches of rain at Huntsville on August 28, 2017. The biggest single-day snow measured 7.99 inches at Huntsville on December 21, 1929. Those are station measurements from NOAA's daily records, 1903 to 2026, not official state records. By area the largest place is Shepherd, about 6 square miles.
About San Jacinto County weather
The map on the Now tab shows every San Jacinto 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 4 San Jacinto County towns with station normals, the warmest month is August, when the day usually reaches 94°F, and the coldest is January, when the night usually falls to 40°F. December is the wettest, with rain on about 10 days.
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.
San Jacinto County weather records
Measured at the NOAA stations serving these towns, daily records 1903 to 2026. Station extremes, not official state records.
Common questions about San Jacinto County weather
- What is the hottest temperature recorded at a San Jacinto County station?
- 110°F at Conroe Montgomery Co Ap on September 4, 2000, in the NOAA daily station records myweatherrock holds (1903 to 2026).
- What is the coldest temperature recorded at a San Jacinto County station?
- 1°F at Huntsville on January 18, 1930.
- What is the most rain a San Jacinto County station has measured in one day?
- 12.24 inches at Huntsville on August 28, 2017.
- What is the biggest one-day snowfall at a San Jacinto County station?
- 7.99 inches at Huntsville on December 21, 1929.
- How many San Jacinto County towns have a weather page here?
- 5: 3 cities, 2 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 San Jacinto 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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