St. Johns, FL
11/21/2025 02:00 AM
61°F
TEMPERATURE
Winds 2 mph S
Widespread Fog
Widespread fog. Partly cloudy, with a low around 58. Southwest wind around 2 mph.

Alerts

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Dense Fog Advisory issued November 21 at 2:24AM EST until November 21 at 10:00AM EST by NWS Jacksonville FL
NWS Jacksonville FL
Category Certainty Severity
Met Likely Moderate
Status Urgency Category
Actual Expected Met
Effective Ends Expires
11/21/2025 02:24 AM 11/21/2025 10:00 AM 11/21/2025 10:00 AM
* WHAT...Visibility one quarter mile or less in dense fog.

* WHERE...Portions of northeast Florida and southeast Georgia.

* WHEN...Until 10 AM EST this morning.

* IMPACTS...Low visibility could make driving conditions hazardous.
                                            
Moonrise
07:21 AM
Moonset
05:31 PM
Sunrise
06:55 AM
Moon Phase
Waxing crescent
Sunset
05:28 PM

Hourly Forecast

Fri, 02:00 AM

Widespread Fog
Winds: 2 mph S
61°

Fri, 03:00 AM

Widespread Fog
Winds: 2 mph S
61°

Fri, 04:00 AM

Widespread Fog
Winds: 2 mph S
60°

Fri, 05:00 AM

Widespread Fog
Winds: 2 mph SW
59°

Fri, 06:00 AM

Widespread Fog
Winds: 2 mph SW
58°

Fri, 07:00 AM

Widespread Fog
Winds: 2 mph SW
58°

Fri, 08:00 AM

Widespread Fog
Winds: 3 mph SW
62°

Fri, 09:00 AM

Partly Sunny
Winds: 5 mph W
66°

Fri, 10:00 AM

Partly Sunny
Winds: 6 mph SW
72°

Fri, 11:00 AM

Mostly Sunny
Winds: 6 mph SW
77°

Fri, 12:00 PM

Mostly Sunny
Winds: 7 mph SW
80°

Fri, 01:00 PM

Partly Sunny
Winds: 7 mph SW
83°

Fri, 02:00 PM

Mostly Sunny
Winds: 7 mph SW
84°

Fri, 03:00 PM

Mostly Sunny
Winds: 7 mph S
84°

Fri, 04:00 PM

Mostly Sunny
Winds: 7 mph S
82°

Fri, 05:00 PM

Mostly Sunny
Winds: 8 mph S
79°

Fri, 06:00 PM

Partly Cloudy
Winds: 7 mph SE
75°

Fri, 07:00 PM

Partly Cloudy
Winds: 6 mph SE
71°

Fri, 08:00 PM

Mostly Clear
Winds: 5 mph S
69°

Fri, 09:00 PM

Mostly Clear
Winds: 5 mph S
68°

Fri, 10:00 PM

Mostly Clear
Winds: 5 mph S
66°

Fri, 11:00 PM

Mostly Clear
Winds: 5 mph S
65°

Sat, 12:00 AM

Mostly Clear
Winds: 3 mph SW
63°

Sat, 01:00 AM

Mostly Clear
Winds: 5 mph SW
62°
Winds: 2 mph SW
Widespread fog. Partly cloudy, with a low around 58. Southwest wind around 2 mph.
Winds: 2 to 8 mph SW
Widespread fog before 9am. Mostly sunny. High near 84, with temperatures falling to around 79 in the afternoon. Southwest wind 2 to 8 mph.
Winds: 3 to 7 mph S
Mostly clear, with a low around 58. South wind 3 to 7 mph.
Winds: 5 to 9 mph SW
Sunny, with a high near 83. Southwest wind 5 to 9 mph.
Winds: 7 mph W
Partly cloudy, with a low around 63. West wind around 7 mph.
Winds: 6 to 10 mph N
Sunny, with a high near 81.
Winds: 6 to 9 mph NE
Mostly clear, with a low around 60.
Winds: 6 to 10 mph NE
Mostly sunny, with a high near 78.
Winds: 3 to 8 mph SE
Mostly cloudy, with a low around 61.
Winds: 3 to 9 mph SE
Mostly sunny, with a high near 83.
Winds: 7 mph S
Mostly cloudy, with a low around 62.
Winds: 5 to 9 mph S
Partly sunny, with a high near 82.
Winds: 7 mph SW
Mostly cloudy, with a low around 61.
Winds: 7 to 10 mph NW
A slight chance of rain showers after 7am. Mostly cloudy, with a high near 74.

Coastal Waters Forecast for Northeast Florida/Southeast Georgia

National Weather Service Jacksonville FL

Atlantic Coastal Waters from Altamaha Sound GA to Flagler Beach FL out to 60 nm. Seas are provided as a range of the average height of the highest 1/3 of the waves, along with the occasional height of the average highest 1/10 of the waves. Weakening high pressure will continue to shift slowly southeastward across the Florida peninsula through Saturday. Dense sea fog is expected to develop early this morning across the Georgia waters, with this fog potentially extending to the near shore waters adjacent to coastal northeast Florida before dissipating by early afternoon. A weakening and mostly dry frontal boundary will then push southward through the Georgia waters on Saturday night, with this boundary pushing across the northeast FL waters early on Sunday morning. High pressure will build eastward from the Ozarks on Sunday towards the Mid-Atlantic states by Monday afternoon, with breezy onshore winds developing across our local waters from Sunday afternoon through Monday afternoon. A stronger cold front may then push eastward across the southeastern states on Wednesday and Wednesday night, with southerly winds expected to develop ahead of this front beginning on Tuesday evening. .GULF STREAM. The approximate location of the west wall of the Gulf Stream as of Nov 20, 2025 at 1200 UTC. 44 nautical miles east of Flagler Beach. 46 nautical miles east of Saint Augustine Beach. 54 nautical miles east of Jacksonville Beach. 72 nautical miles east of St Simons Island. This data courtesy of the Naval Oceanographic Office.

DENSE FOG ADVISORY IN EFFECT UNTIL NOON EST TODAY
Reporting time 12:01 AM EST Fri Nov 21 2025
REST OF TONIGHT
Southeast winds around 5 knots, becoming southwest Waves 1 foot or less Intracoastal waters smooth Areas of fog
FRIDAY
West winds around 5 knots, becoming southeast in the afternoon Waves 1 foot or less Intracoastal waters light chop Patchy fog in the morning
FRIDAY NIGHT
South winds 5 to 10 knots, becoming southwest after midnight Seas around 2 feet Intracoastal waters light chop
SATURDAY
Southwest winds 5 to 10 knots Seas around 2 feet Intracoastal waters light chop
SATURDAY NIGHT
West winds 5 to 10 knots Seas around 2 feet Wave Detail: West 2 feet at 3 seconds Intracoastal waters light chop
SUNDAY AND SUNDAY NIGHT
Northeast winds 10 to 15 knots Seas around 2 feet Wave Detail: Northwest 2 feet at 3 seconds and northeast 2 feet at 7 seconds Intracoastal waters a moderate chop
MONDAY THROUGH TUESDAY
South winds 5 to 10 knots Seas 2 to 3 feet Intracoastal waters light chop
Reporting time 12:01 AM EST Fri Nov 21 2025
REST OF TONIGHT
Northeast winds around 5 knots, becoming northwest Seas around 2 feet Areas of fog late this evening Patchy fog Visibility 1 NM or less
FRIDAY
Southwest winds 5 to 10 knots Seas around 2 feet Wave Detail: Northeast 2 feet at 6 seconds Patchy fog in the morning with visibility 1 NM or less
FRIDAY NIGHT
Southwest winds 10 to 15 knots Seas 2 to 3 feet Wave Detail: South 2 feet at 3 seconds and northeast 2 feet at 6 seconds
SATURDAY
Southwest winds 10 to 15 knots Seas 2 to 3 feet Wave Detail: Southwest 2 feet at 3 seconds and northeast 2 feet at 7 seconds
SATURDAY NIGHT
West winds 10 to 15 knots Seas 2 to 3 feet Wave Detail: Southwest 2 feet at 3 seconds
SUNDAY AND SUNDAY NIGHT
Northeast winds 10 to 15 knots Seas 2 to 3 feet Wave Detail: North 3 feet at 5 seconds
MONDAY THROUGH TUESDAY
South winds 10 to 15 knots Seas 3 to 4 feet, occasionally to 5 feet
Reporting time 12:01 AM EST Fri Nov 21 2025
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