Fernandina Beach, FL Weather Forecast

Local 7-day forecast

87°

Mostly Sunny then Chance Showers And Thunderstorms

Track current conditions, temperature changes, wind, and the full daily outlook for Fernandina Beach, FL in one place.

Saturday, July 18, 2026

Wind: 5 to 16 mph S

Saturday

A chance of showers and thunderstorms after 2pm. Mostly sunny. High near 87, with temperatures falling to around 85 in the afternoon. South wind 5 to 16 mph, with gusts as high as 24 mph. Chance of precipitation is 40%. New rainfall amounts less than a tenth of an inch possible.

Local 7-day forecast

Local Weather Overview

This forecast page for Fernandina Beach, FL is designed for quick trip planning, giving you a clean read on daytime highs, overnight lows, and changing conditions across the upcoming forecast window. Latest sync: Jul 17, 2026 11:25 AM EDT.

The active forecast window currently covers Jul 18 to Jul 23, 2026 for Fernandina Beach, FL.

Page Snapshot

Page focus: city weather
Forecast window: Jul 18 to Jul 23, 2026
Latest sync: Jul 17, 2026 11:25 AM EDT
Forecast office: JAX
Source: NOAA / NWS

Next High

87°F

Saturday

Next Low

78°F

Saturday Night

Rain Outlook

Periods mentioning precipitation

Windiest

5 to 16 mph

Saturday

Daily Outlook

Today

Jul 18

Mostly Sunny then Chance Showers And Thunderstorms

87 °F

/ 78°F

Wind 5 to 16 mph

Sun

Jul 19

Chance Showers And Thunderstorms

86 °F

/ 77°F

Wind 7 to 13 mph

Mon

Jul 20

Chance Showers And Thunderstorms

86 °F

/ 79°F

Wind 7 to 12 mph

Tue

Jul 21

Chance Showers And Thunderstorms

87 °F

/ 79°F

Wind 12 mph

Wed

Jul 22

Mostly Sunny then Slight Chance Showers And Thunderstorms

88 °F

/ 79°F

Wind 8 to 12 mph

Thu

Jul 23

Chance Showers And Thunderstorms

87 °F

/ 79°F

Wind 9 mph

This Week in Fernandina Beach

Wednesday looks like the warmest upcoming period in Fernandina Beach at 88 degrees F.

Sunday Night is the coolest period ahead with temperatures near 77 degrees F.

The strongest winds are forecast for Saturday at about 5 to 16 mph S.

Precipitation is mentioned in 12 upcoming forecast periods.

Forecast Details

Last updated: Jul 17, 2026 11:25 AM EDT
Coverage: 6 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 source

Extended Forecast

Saturday Night

Jul 18

78°F

Chance Showers And Thunderstorms

7 to 16 mph S

A chance of showers and thunderstorms before 2am. Partly cloudy. Low around 78, with temperatures rising to around 80 overnight. South wind 7 to 16 mph, with gusts as high as 24 mph. Chance of precipitation is 40%.

Sunday

Jul 19

86°F

Chance Showers And Thunderstorms

7 to 13 mph S

A chance of showers and thunderstorms after 11am. Mostly sunny. High near 86, with temperatures falling to around 84 in the afternoon. South wind 7 to 13 mph, with gusts as high as 20 mph. Chance of precipitation is 40%.

Sunday Night

Jul 19

77°F

Chance Showers And Thunderstorms

7 to 12 mph S

A chance of showers and thunderstorms before 2am. Mostly cloudy, with a low around 77. Chance of precipitation is 40%.

Monday

Jul 20

86°F

Chance Showers And Thunderstorms

7 to 12 mph S

A chance of showers and thunderstorms after 8am. Mostly sunny, with a high near 86. Chance of precipitation is 50%.

Monday Night

Jul 20

79°F

Chance Showers And Thunderstorms

10 mph S

A chance of showers and thunderstorms before 2am. Mostly cloudy, with a low around 79. Chance of precipitation is 50%.

Tuesday

Jul 21

87°F

Chance Showers And Thunderstorms

12 mph S

A chance of showers and thunderstorms after 8am. Partly sunny, with a high near 87. Chance of precipitation is 50%.

Tuesday Night

Jul 21

79°F

Chance Showers And Thunderstorms then Partly Cloudy

8 to 12 mph S

A chance of showers and thunderstorms before 8pm. Partly cloudy, with a low around 79. Chance of precipitation is 50%.

Wednesday

Jul 22

88°F

Mostly Sunny then Slight Chance Showers And Thunderstorms

8 to 12 mph S

A slight chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 88. Chance of precipitation is 20%.

Wednesday Night

Jul 22

79°F

Slight Chance Showers And Thunderstorms then Partly Cloudy

7 to 12 mph SW

A slight chance of showers and thunderstorms before 8pm. Partly cloudy, with a low around 79. Chance of precipitation is 20%.

Thursday

Jul 23

87°F

Chance Showers And Thunderstorms

9 mph S

A chance of showers and thunderstorms after 8am. Partly sunny, with a high near 87. Chance of precipitation is 50%.

Thursday Night

Jul 23

79°F

Chance Showers And Thunderstorms

3 to 9 mph S

A chance of showers and thunderstorms. Mostly cloudy, with a low around 79.

Detailed Forecast

Period	Conditions	Temp	Wind	Details
Saturday Jul 18	Mostly Sunny then Chance Showers And Thunderstorms	87°F	5 to 16 mph S	A chance of showers and thunderstorms after 2pm. Mostly sunny. High near 87, with temperatures falling to around 85 in t...
Saturday Night Jul 18	Chance Showers And Thunderstorms	78°F	7 to 16 mph S	A chance of showers and thunderstorms before 2am. Partly cloudy. Low around 78, with temperatures rising to around 80 ov...
Sunday Jul 19	Chance Showers And Thunderstorms	86°F	7 to 13 mph S	A chance of showers and thunderstorms after 11am. Mostly sunny. High near 86, with temperatures falling to around 84 in...
Sunday Night Jul 19	Chance Showers And Thunderstorms	77°F	7 to 12 mph S	A chance of showers and thunderstorms before 2am. Mostly cloudy, with a low around 77. Chance of precipitation is 40%.
Monday Jul 20	Chance Showers And Thunderstorms	86°F	7 to 12 mph S	A chance of showers and thunderstorms after 8am. Mostly sunny, with a high near 86. Chance of precipitation is 50%.
Monday Night Jul 20	Chance Showers And Thunderstorms	79°F	10 mph S	A chance of showers and thunderstorms before 2am. Mostly cloudy, with a low around 79. Chance of precipitation is 50%.
Tuesday Jul 21	Chance Showers And Thunderstorms	87°F	12 mph S	A chance of showers and thunderstorms after 8am. Partly sunny, with a high near 87. Chance of precipitation is 50%.
Tuesday Night Jul 21	Chance Showers And Thunderstorms then Partly Cloudy	79°F	8 to 12 mph S	A chance of showers and thunderstorms before 8pm. Partly cloudy, with a low around 79. Chance of precipitation is 50%.
Wednesday Jul 22	Mostly Sunny then Slight Chance Showers And Thunderstorms	88°F	8 to 12 mph S	A slight chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 88. Chance of precipitation is 20...
Wednesday Night Jul 22	Slight Chance Showers And Thunderstorms then Partly Cloudy	79°F	7 to 12 mph SW	A slight chance of showers and thunderstorms before 8pm. Partly cloudy, with a low around 79. Chance of precipitation is...
Thursday Jul 23	Chance Showers And Thunderstorms	87°F	9 mph S	A chance of showers and thunderstorms after 8am. Partly sunny, with a high near 87. Chance of precipitation is 50%.
Thursday Night Jul 23	Chance Showers And Thunderstorms	79°F	3 to 9 mph S	A chance of showers and thunderstorms. Mostly cloudy, with a low around 79.

Nearby Forecasts

Explore weather pages for nearby cities and major places around Fernandina Beach.

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Weather data provided by the National Weather Service (NOAA). Forecast pages update automatically as new periods are synced for each supported U.S. location.