Nassau County, FL Weather Forecast
County weather hub
Partly Cloudy
Compare major city weather across Nassau County, scan the latest forecast snapshots, and jump into local 7-day outlook pages from one hub.
Partly cloudy. Low around 54, with temperatures rising to around 57 overnight. North wind around 15 mph, with gusts as high as 25 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
- Oct 18 to Oct 24, 2026
- Latest sync
- Oct 18, 2026 6:31 AM EDT
- Forecast office
- JAX
- Source
- NOAA / NWS
Daily Outlook
This Week in Nassau County
Wednesday looks like the warmest upcoming period in Nassau County at 77 degrees F.
Monday Night is the coolest period ahead with temperatures near 51 degrees F.
The strongest winds are forecast for Sunday at about 15 to 18 mph N.
The forecast from Oct 18 through Oct 24 stays mostly dry.
Forecast Details
- Last updated
- Oct 18, 2026 6:31 AM 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 sunny. High near 68, with temperatures falling to around 67 in the afternoon. North wind 15 to 18 mph, with gusts as high as 28 mph.
Partly cloudy. Low around 55, with temperatures rising to around 57 overnight. North wind 12 to 15 mph, with gusts as high as 28 mph.
Sunny. High near 71, with temperatures falling to around 69 in the afternoon. North wind 8 to 14 mph, with gusts as high as 21 mph.
Clear. Low around 51, with temperatures rising to around 53 overnight. North wind around 7 mph.
Sunny, with a high near 74.
Clear, with a low around 54.
Sunny, with a high near 77.
Clear, with a low around 52.
Sunny, with a high near 76.
Clear, with a low around 52.
Sunny, with a high near 77.
Clear, with a low around 55.
Sunny, with a high near 75.
Detailed Forecast
| Period | Conditions | Temp | Wind |
|---|---|---|---|
|
Overnight
Oct 18
|
Partly Cloudy
|
54°F |
15 mph
N
|
|
Sunday
Oct 18
|
Mostly Sunny
|
68°F |
15 to 18 mph
N
|
|
Sunday Night
Oct 18
|
Partly Cloudy
|
55°F |
12 to 15 mph
N
|
|
Monday
Oct 19
|
Sunny
|
71°F |
8 to 14 mph
N
|
|
Monday Night
Oct 19
|
Clear
|
51°F |
7 mph
N
|
|
Tuesday
Oct 20
|
Sunny
|
74°F |
8 mph
N
|
|
Tuesday Night
Oct 20
|
Clear
|
54°F |
3 to 7 mph
N
|
|
Wednesday
Oct 21
|
Sunny
|
77°F |
9 mph
N
|
|
Wednesday Night
Oct 21
|
Clear
|
52°F |
2 to 7 mph
N
|
|
Thursday
Oct 22
|
Sunny
|
76°F |
8 mph
N
|
|
Thursday Night
Oct 22
|
Clear
|
52°F |
0 to 6 mph
NE
|
|
Friday
Oct 23
|
Sunny
|
77°F |
5 to 12 mph
N
|
|
Friday Night
Oct 23
|
Clear
|
55°F |
6 to 12 mph
NE
|
|
Saturday
Oct 24
|
Sunny
|
75°F |
13 to 17 mph
NE
|
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.
