Saint Johns County, FL Weather Forecast
County weather hub
Mostly Sunny then Chance Showers And Thunderstorms
Compare major city weather across Saint Johns County, scan the latest forecast snapshots, and jump into local 7-day outlook pages from one hub.
A chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 95. Chance of precipitation is 40%.
County Weather Overview
This county weather page brings together forecast coverage for Saint Johns County so visitors can compare temperatures, wind, and conditions across the region without hopping between unrelated pages.
Current forecast coverage spans 4 of 4 mapped cities in Saint Johns County.
Page Snapshot
- Page focus
- county weather
- Forecast window
- Jul 14 to Jul 17, 2026
- Latest sync
- Jul 11, 2026 6:55 AM EDT
- Forecast office
- JAX
- Source
- NOAA / NWS
Daily Outlook
This Week in Saint Johns County
Thursday looks like the warmest upcoming period in Saint Johns County at 96 degrees F.
Tuesday Night is the coolest period ahead with temperatures near 76 degrees F.
The strongest winds are forecast for Tuesday at about 3 to 8 mph W.
Precipitation is mentioned in 7 upcoming forecast periods.
Forecast Details
- Last updated
- Jul 11, 2026 6:55 AM EDT
- Coverage
- 4 days
- Time zone
- America/New_York
- Forecast office
- JAX
- Radar station
- KJAX
Weather data is provided by the National Weather Service and refreshed automatically for U.S. locations.
Open NOAA sourceExtended Forecast
A chance of showers and thunderstorms before 2am. Partly cloudy, with a low around 76. Chance of precipitation is 40%.
A slight chance of showers and thunderstorms after 2pm. Sunny, with a high near 94. Chance of precipitation is 20%.
A slight chance of showers and thunderstorms before 8pm. Partly cloudy, with a low around 77. Chance of precipitation is 20%.
A slight chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 96. Chance of precipitation is 20%.
A slight chance of showers and thunderstorms before 2am. Partly cloudy, with a low around 77. Chance of precipitation is 20%.
A chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 96.
Detailed Forecast
| Period | Conditions | Temp | Wind |
|---|---|---|---|
|
Tuesday
Jul 14
|
Mostly Sunny then Chance Showers And Thunderstorms
|
95°F |
3 to 8 mph
W
|
|
Tuesday Night
Jul 14
|
Chance Showers And Thunderstorms
|
76°F |
3 to 8 mph
S
|
|
Wednesday
Jul 15
|
Sunny then Slight Chance Showers And Thunderstorms
|
94°F |
3 to 7 mph
NW
|
|
Wednesday Night
Jul 15
|
Slight Chance Showers And Thunderstorms then Partly Cloudy
|
77°F |
6 mph
S
|
|
Thursday
Jul 16
|
Mostly Sunny then Slight Chance Showers And Thunderstorms
|
96°F |
7 mph
SW
|
|
Thursday Night
Jul 16
|
Slight Chance Showers And Thunderstorms
|
77°F |
7 mph
SW
|
|
Friday
Jul 17
|
Mostly Sunny then Chance Showers And Thunderstorms
|
96°F |
5 to 8 mph
SW
|
Major City Forecasts
Live forecast snapshots for major cities across Saint Johns County.
Coverage
Forecast coverage currently spans 4 of 4 mapped cities in Saint Johns County.
Largest mapped city population in this region: 20,019.
