Nassau County, FL Weather Forecast
County weather hub
Partly Sunny
Compare major city weather across Nassau County, scan the latest forecast snapshots, and jump into local 7-day outlook pages from one hub.
Partly sunny. High near 88, with temperatures falling to around 85 in the afternoon. West wind 2 to 12 mph, with gusts as high as 20 mph.
County Weather Overview
This county weather page brings together forecast coverage for Nassau County so visitors can compare temperatures, wind, and conditions across the region without hopping between unrelated pages.
Current forecast coverage spans 2 of 2 mapped cities in Nassau County.
Page Snapshot
- Page focus
- county weather
- Forecast window
- Apr 19 to Apr 23, 2026
- Latest sync
- Apr 17, 2026 12:38 PM EDT
- Forecast office
- JAX
- Source
- NOAA / NWS
Daily Outlook
This Week in Nassau County
Sunday looks like the warmest upcoming period in Nassau County at 88 degrees F.
Monday Night is the coolest period ahead with temperatures near 53 degrees F.
The strongest winds are forecast for Monday at about 12 to 16 mph NE.
The forecast from Apr 19 through Apr 23 stays mostly dry.
Forecast Details
- Last updated
- Apr 17, 2026 12:38 PM EDT
- Coverage
- 5 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 cloudy, with a low around 57.
Sunny, with a high near 75.
Mostly clear, with a low around 53.
Sunny, with a high near 77.
Partly cloudy, with a low around 55.
Mostly sunny, with a high near 79.
Mostly clear, with a low around 56.
Sunny, with a high near 83.
Mostly clear, with a low around 58.
Detailed Forecast
| Period | Conditions | Temp | Wind |
|---|---|---|---|
|
Sunday
Apr 19
|
Partly Sunny
|
88°F |
2 to 12 mph
W
|
|
Sunday Night
Apr 19
|
Mostly Cloudy
|
57°F |
12 mph
N
|
|
Monday
Apr 20
|
Sunny
|
75°F |
12 to 16 mph
NE
|
|
Monday Night
Apr 20
|
Mostly Clear
|
53°F |
2 to 13 mph
NE
|
|
Tuesday
Apr 21
|
Sunny
|
77°F |
3 to 12 mph
NE
|
|
Tuesday Night
Apr 21
|
Partly Cloudy
|
55°F |
2 to 10 mph
E
|
|
Wednesday
Apr 22
|
Mostly Sunny
|
79°F |
2 to 9 mph
E
|
|
Wednesday Night
Apr 22
|
Mostly Clear
|
56°F |
1 to 8 mph
SE
|
|
Thursday
Apr 23
|
Sunny
|
83°F |
1 to 8 mph
NE
|
|
Thursday Night
Apr 23
|
Mostly Clear
|
58°F |
3 to 8 mph
SE
|
Major City Forecasts
Live forecast snapshots for major cities across Nassau County.
Coverage
Forecast coverage currently spans 2 of 2 mapped cities in Nassau County.
Largest mapped city population in this region: 13,290.
