Main Street Bridge, St Johns River, FL Weather Forecast and Current Conditions
| Day | Sky | High / Low | Precip | Wind | Humidity | |
|---|---|---|---|---|---|---|
|
Sun Aug 9 |
 |
Cloudy Close Hourly |
92º / 76º | 24% | ESE 10 mph | 68% |
| 4pm |  |
Mostly Cloudy | 93º | 24% | E 8 mph | 58% |
| 5pm | |
Mostly Cloudy | 92º | 16% | ESE 8 mph | 60% |
| 6pm | |
Cloudy | 90º | 15% | ESE 8 mph | 63% |
| 7pm | |
Cloudy | 83º | 17% | SE 8 mph | 81% |
| 8pm | |
Cloudy | 82º | 15% | SE 6 mph | 83% |
| 9pm | |
Cloudy | 81º | 15% | SSE 5 mph | 87% |
| 10pm |  |
Mostly Cloudy | 80º | 15% | SSE 5 mph | 90% |
| 11pm | |
Mostly Cloudy | 80º | 9% | SSE 5 mph | 89% |
|
Mon Aug 10 |
 |
PM Thunderstorms View Hourly |
91º / 77º | 42% | S 8 mph | 75% |
| 12am | |
Mostly Cloudy | 80º | 10% | SSE 5 mph | 90% |
| 1am |  |
Partly Cloudy | 79º | 10% | S 4 mph | 91% |
| 2am | |
Partly Cloudy | 79º | 9% | S 4 mph | 91% |
| 3am | |
Partly Cloudy | 79º | 9% | S 4 mph | 92% |
| 4am | |
Partly Cloudy | 79º | 10% | S 5 mph | 93% |
| 5am | |
Partly Cloudy | 78º | 9% | S 4 mph | 94% |
| 6am | |
Partly Cloudy | 78º | 9% | S 4 mph | 94% |
| 7am |  |
Partly Cloudy | 77º | 9% | SSW 3 mph | 95% |
| 8am | |
Partly Cloudy | 79º | 10% | SSW 4 mph | 91% |
| 9am | |
Partly Cloudy | 81º | 8% | SW 5 mph | 85% |
| 10am | |
Partly Cloudy | 84º | 7% | SW 5 mph | 79% |
| 11am | |
Partly Cloudy | 86º | 9% | SW 5 mph | 73% |
| 12pm | |
Partly Cloudy | 88º | 7% | SW 4 mph | 69% |
| 1pm | |
Scattered Thunderstorms | 90º | 39% | SSW 5 mph | 65% |
| 2pm | |
Scattered Thunderstorms | 89º | 42% | SSE 5 mph | 66% |
| 3pm | |
Mostly Cloudy | 89º | 24% | ESE 6 mph | 67% |
| 4pm | |
Mostly Cloudy | 88º | 22% | ESE 6 mph | 68% |
| 5pm | |
Partly Cloudy | 88º | 24% | SE 7 mph | 68% |
| 6pm | |
Partly Cloudy | 88º | 15% | SSE 8 mph | 69% |
| 7pm | |
Partly Cloudy | 85º | 15% | SSE 8 mph | 72% |
| 8pm | |
Partly Cloudy | 83º | 15% | S 7 mph | 76% |
| 9pm | |
Partly Cloudy | 82º | 15% | S 5 mph | 80% |
| 10pm | |
Mostly Cloudy | 82º | 15% | SSW 6 mph | 82% |
| 11pm | |
Partly Cloudy | 81º | 9% | SSW 5 mph | 84% |
|
Tue Aug 11 |
|
Partly Cloudy View Hourly |
94º / 77º | 23% | WSW 8 mph | 68% |
| 12am | |
Partly Cloudy | 80º | 9% | SSW 4 mph | 86% |
| 1am |  |
Mostly Clear | 80º | 7% | SSW 5 mph | 88% |
| 2am | |
Mostly Clear | 80º | 7% | SSW 5 mph | 87% |
| 3am | |
Mostly Clear | 79º | 7% | SW 4 mph | 88% |
| 4am | |
Partly Cloudy | 79º | 11% | SW 5 mph | 89% |
| 5am | |
Partly Cloudy | 78º | 15% | SW 4 mph | 90% |
| 6am | |
Partly Cloudy | 78º | 14% | SW 5 mph | 90% |
| 7am | |
Partly Cloudy | 78º | 23% | WSW 4 mph | 91% |
| 8am | |
Mostly Cloudy | 79º | 21% | WSW 5 mph | 89% |
| 9am |  |
Mostly Sunny | 82º | 7% | W 6 mph | 83% |
| 10am | |
Mostly Sunny | 85º | 5% | W 6 mph | 76% |
| 11am | |
Mostly Sunny | 88º | 3% | W 6 mph | 67% |
| 12pm | |
Mostly Sunny | 90º | 2% | W 6 mph | 63% |
| 1pm | |
Partly Cloudy | 92º | 1% | W 7 mph | 58% |
| 2pm | |
Partly Cloudy | 92º | 15% | WSW 7 mph | 56% |
| 3pm | |
Partly Cloudy | 92º | 15% | WSW 7 mph | 55% |
|
Wed Aug 12 |
|
PM Thunderstorms | 94º / 77º | 52% | W 9 mph | 69% |
|
Thu Aug 13 |
|
PM Thunderstorms | 94º / 77º | 51% | WSW 8 mph | 70% |
|
Fri Aug 14 |
|
PM Thunderstorms | 95º / 77º | 65% | SW 8 mph | 69% |
|
Sat Aug 15 |
|
PM Thunderstorms | 94º / 78º | 43% | SW 8 mph | 68% |
|
Sun Aug 16 |
|
PM Thunderstorms | 95º / 77º | 46% | SW 8 mph | 68% |
-
Buoy Data
For Main Street Bridge, St Johns River, FL -
Wind Forecast
In Main Street Bridge, St Johns River, FL -
Radar
In Main Street Bridge, St Johns River, FL -
Marine Forecast
In Main Street Bridge, St Johns River, FL
Weather Radar for Main Street Bridge, St Johns River, FL See Radar
* Playback displays weather for the past 6 hours.
NOAA Weather Marine Forecast for Main Street Bridge, St Johns River, FL
S wind around 12 kt becoming ESE in the afternoon. Winds could gust as high as 18 kt. A chance of showers and thunderstorms, mainly after 4pm. Seas 1 ft or less.
S wind 8 to 13 kt, with gusts as high as 20 kt. A chance of showers and thunderstorms, mainly before 9pm. Seas 1 ft or less.
Variable winds less than 5 kt becoming SE 5 to 8 kt in the afternoon. A slight chance of showers and thunderstorms after 3pm. Seas 1 ft or less.
SSE wind 5 to 7 kt becoming variable and less than 5 kt after midnight. Partly cloudy. Seas 1 ft or less.
Variable winds less than 5 kt becoming SW around 6 kt in the morning. A slight chance of showers and thunderstorms after 2pm. Seas 1 ft or less.
S wind around 6 kt becoming WSW after midnight. A slight chance of showers and thunderstorms before 8pm. Seas 1 ft or less.
W wind around 7 kt. A slight chance of showers and thunderstorms after 2pm. Seas 1 ft or less.
WSW wind around 6 kt. A slight chance of showers and thunderstorms before 8pm. Seas 1 ft or less.
WSW wind around 7 kt. A slight chance of showers and thunderstorms after 2pm. Seas 1 ft or less.
NOAA Buoy Data Near Main Street Bridge, St Johns River, FL See Map
Wind Speed Forecast for Main Street Bridge, St Johns River, FL
| Sunday | Monday | Tuesday | ||||||||||
| Wind Speed (MPH) | 8 | 6 | 5 | 5 | 4 | 4 | 6 | 7 | 4 | 5 | 5 | 6 |
| 8pm | 12am | 4am | 8am | 12pm | 4pm | 8pm | 12am | 4am | 8am | 12pm | 4pm | |
| MPH | 8 | 6 | 5 | 5 | 4 | 4 | 6 | 7 | 4 | 5 | 5 | 6 |
| DIR | E | SE | SSE | S | SSW | SW | ESE | S | SSW | SW | WSW | W |
Current Weather Conditions In Main Street Bridge, St Johns River, FL
As Of: 46 minutes ago
- 93ºF
- 106ºF
- 8mph
- 0º (E)
- 8mph
- Mostly Cloudy
- 10mi
- 30.08"
- 58%
- 0ºF
The weather right now in Main Street Bridge, St Johns River, FL is Mostly Cloudy. The current temperature is 93°F, and the expected high and low for today, Sunday, August 9, 2026, are 92° high temperature and 76°F low temperature. The wind is currently blowing at 8 miles per hour, and coming from the East. The wind is gusting to 8 mph. With the wind and the atmosphere the temperature feels like 106° Fahrenheit. Expected precipitation is 24 percent, with current humidity at 58 percent, and air pressure at 30.08 in. Visibility is 10 nautical miles. There are 3 current weather alert(s).
The National Weather Service in Jacksonville has issued a
* Special Marine Warning for...
Coastal waters from Altamaha Sound to Fernandina Beach FL out 20
NM...
Coastal waters from Fernandina Beach to St. Augustine FL out 20
NM...
* Until 415 PM EDT.
* At 307 PM EDT, a strong thunderstorm was located 13 nm north of
Amelia City, or 23 nm south of St. Simons Island. The strong
thunderstorm was nearly stationary.
HAZARD...Wind gusts 34 knots or greater.
SOURCE...Radar.
IMPACT...Small craft could be damaged in briefly higher winds and
suddenly higher waves.
* Locations impacted include...
Atlantic Beach, High Point, Mayport, Nassau Sound Approach Buoy 6a,
Amelia City, Jekyll Island, St Simons Island Village, Jacksonville
Beach, St. Simons Island, Talbot Island, Saint Andrews Sound, Buoy
Kby, Saint Johns Lighted Buoy, Dungeness, Saint Marys Entrance Buoy
16, St Simons Sound Buoy 9, Cumberland Island, and Palm Valley.
PRECAUTIONARY / PREPAREDNESS ACTIONS:
Move to safe harbor until hazardous weather passes. If your vessel is
caught offshore, immediately secure for heavy weather. Ensure all
crew members are wearing USCG approved Type I life jackets and
nonessential crew are below decks. Deploy jack lines and harnesses if
available. Check life saving equipment, including batteries on
handheld radios, for readiness.
&&
HAIL...0.00IN;
WIND...>34KTS
...HIGH RIP CURRENT RISK IN EFFECT THROUGH THIS EVENING...
WHAT: Dangerous rip currents.
WHERE: Northeast Florida Beaches.
WHEN: Through this evening.
IMPACTS: Rip currents can sweep even the best swimmers away
from shore into deeper water.
PRECAUTIONARY / PREPAREDNESS ACTIONS:
Swim near a lifeguard. If caught in a rip current, relax and
float. Don't swim against the current. If able, swim in a
direction following the shoreline. If unable to escape, face the
shore and call or wave for help.
&&
...A STRONG THUNDERSTORM WILL IMPACT NORTHEASTERN NASSAU...NORTHERN DUVAL AND SOUTHEASTERN CAMDEN COUNTIES THROUGH 330 PM EDT...
At 258 PM EDT, Doppler radar was tracking a strong thunderstorm near
St. Marys. A strong thunderstorm was nearly stationary.
HAZARD...Wind gusts around 40 mph and minor flooding due to heavy
rainfall.
SOURCE...Radar indicated.
IMPACT...Gusty winds could knock down tree limbs and blow around
unsecured objects. Minor flooding due to heavy rainfall is
possible.
Locations impacted include...
St. Marys, Kingsland, Kings Bay Base, and Yulee.
PRECAUTIONARY / PREPAREDNESS ACTIONS:
If outdoors, consider seeking shelter inside a building.
Torrential rainfall is also occurring with this storm and may lead to
localized flooding. Do not drive your vehicle through flooded
roadways.
&&
MAX HAIL SIZE...0.00 IN; MAX WIND GUST...40 MPH
