St. Johns County weather, town by town
14 places in St. Johns County, Florida, 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 1944 to 2026. Station extremes, not official state records.
St. Johns County Weather Facts
St. Johns County has 14 places on myweatherrock (12 census-designated places, 2 cities), each with its own live forecast, hourly timeline, ten day outlook and radar. The hottest day in the station records is 104°F at Hastings 4Ne on June 20, 1998. The coldest night is 9°F at Jacksonville Nas on January 21, 1985. The wettest day brought 12.56 inches of rain at Jacksonville Beach on August 19, 1995. The biggest single-day snow measured 2.52 inches at Jacksonville Beach on December 23, 1989. Those are station measurements from NOAA's daily records, 1944 to 2026, not official state records. By area the largest place is World Golf Village, about 27 square miles.
About St. Johns County weather
The map on the Now tab shows every St. Johns 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 14 St. Johns County towns with station normals, the warmest month is July, when the day usually reaches 91°F, and the coldest is January, when the night usually falls to 47°F. August is the wettest, with rain on about 15 days. July afternoons run from about 89°F in Crescent Beach to 93°F in Fruit Cove. January nights run from about 44°F in Flagler Estates to 47°F in Butler Beach.
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.
St. Johns County weather records
Measured at the NOAA stations serving these towns, daily records 1944 to 2026. Station extremes, not official state records.
Common questions about St. Johns County weather
- What is the hottest temperature recorded at a St. Johns County station?
- 104°F at Hastings 4Ne on June 20, 1998, in the NOAA daily station records myweatherrock holds (1944 to 2026).
- What is the coldest temperature recorded at a St. Johns County station?
- 9°F at Jacksonville Nas on January 21, 1985.
- What is the most rain a St. Johns County station has measured in one day?
- 12.56 inches at Jacksonville Beach on August 19, 1995.
- What is the biggest one-day snowfall at a St. Johns County station?
- 2.52 inches at Jacksonville Beach on December 23, 1989.
- How many St. Johns County towns have a weather page here?
- 14: 12 census-designated places, 2 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 St. Johns 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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