Saint Johns County, FL Weather Forecast
County weather hub
Sunny
Compare major city weather across Saint Johns County, scan the latest forecast snapshots, and jump into local 7-day outlook pages from one hub.
Sunny. High near 86, with temperatures falling to around 83 in the afternoon. Northeast wind around 9 mph.
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
- Oct 13 to Oct 19, 2026
- Latest sync
- Oct 13, 2026 4:47 PM EDT
- Forecast office
- JAX
- Source
- NOAA / NWS
Daily Outlook
This Week in Saint Johns County
Friday looks like the warmest upcoming period in Saint Johns County at 90 degrees F.
Wednesday Night is the coolest period ahead with temperatures near 67 degrees F.
The strongest winds are forecast for Saturday at about 15 to 23 mph N.
Precipitation is mentioned in 8 upcoming forecast periods.
Forecast Details
- Last updated
- Oct 13, 2026 4:47 PM EDT
- Coverage
- 7 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
Mostly clear. Low around 68, with temperatures rising to around 69 overnight. Northeast wind 1 to 7 mph.
Sunny. High near 87, with temperatures falling to around 83 in the afternoon. Northeast wind 2 to 12 mph, with gusts as high as 17 mph.
Partly cloudy, with a low around 67. East wind 1 to 9 mph.
Sunny. High near 88, with temperatures falling to around 84 in the afternoon. Northeast wind 1 to 10 mph, with gusts as high as 16 mph.
Mostly clear, with a low around 68.
A slight chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 90. Chance of precipitation is 20%.
A slight chance of showers and thunderstorms before 8pm. Partly cloudy, with a low around 69. Chance of precipitation is 20%.
A slight chance of rain showers after 2pm. Partly sunny, with a high near 78. Chance of precipitation is 20%.
A slight chance of rain showers. Mostly cloudy, with a low around 68. Chance of precipitation is 20%.
A chance of rain showers. Partly sunny, with a high near 79. Chance of precipitation is 30%.
A chance of rain showers before 8pm. Partly cloudy, with a low around 70. Chance of precipitation is 30%.
A chance of rain showers after 8am. Mostly sunny, with a high near 82. Chance of precipitation is 30%.
A chance of rain showers before 2am. Partly cloudy, with a low around 70.
Detailed Forecast
| Period | Conditions | Temp | Wind |
|---|---|---|---|
|
This Afternoon
Oct 13
|
Sunny
|
86°F |
9 mph
NE
|
|
Tonight
Oct 13
|
Mostly Clear
|
68°F |
1 to 7 mph
NE
|
|
Wednesday
Oct 14
|
Sunny
|
87°F |
2 to 12 mph
NE
|
|
Wednesday Night
Oct 14
|
Partly Cloudy
|
67°F |
1 to 9 mph
E
|
|
Thursday
Oct 15
|
Sunny
|
88°F |
1 to 10 mph
NE
|
|
Thursday Night
Oct 15
|
Mostly Clear
|
68°F |
1 to 9 mph
E
|
|
Friday
Oct 16
|
Mostly Sunny then Slight Chance Showers And Thunderstorms
|
90°F |
1 to 6 mph
NW
|
|
Friday Night
Oct 16
|
Slight Chance Showers And Thunderstorms then Partly Cloudy
|
69°F |
2 to 13 mph
SW
|
|
Saturday
Oct 17
|
Partly Sunny then Slight Chance Rain Showers
|
78°F |
15 to 23 mph
N
|
|
Saturday Night
Oct 17
|
Slight Chance Rain Showers
|
68°F |
17 to 23 mph
NE
|
|
Sunday
Oct 18
|
Chance Rain Showers
|
79°F |
18 to 23 mph
NE
|
|
Sunday Night
Oct 18
|
Chance Rain Showers then Partly Cloudy
|
70°F |
16 to 22 mph
NE
|
|
Monday
Oct 19
|
Chance Rain Showers
|
82°F |
16 to 22 mph
NE
|
|
Monday Night
Oct 19
|
Chance Rain Showers
|
70°F |
10 to 21 mph
NE
|
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.
