Main Street Bridge, St Johns River, FL Weather Forecast and Current Conditions

Day	Sky	High / Low	Precip	Wind	Humidity
Mon Sep 21	Partly Cloudy Close Hourly	86º / 74º	24%	NNE 10 mph	78%
7am	Mostly Cloudy	75º	10%	NNW 4 mph	94%
8am	Mostly Cloudy	75º	15%	NNW 5 mph	95%
9am	Mostly Cloudy	76º	15%	NNW 6 mph	92%
10am	Mostly Cloudy	78º	9%	NNW 5 mph	85%
11am	Mostly Cloudy	81º	7%	N 5 mph	78%
12pm	Mostly Cloudy	83º	8%	NNE 6 mph	72%
1pm	Mostly Cloudy	85º	14%	NE 7 mph	68%
2pm	Mostly Cloudy	85º	15%	ENE 8 mph	68%
3pm	Mostly Cloudy	85º	24%	ENE 8 mph	68%
4pm	Mostly Cloudy	85º	24%	ENE 10 mph	68%
5pm	Partly Cloudy	84º	18%	ENE 9 mph	69%
6pm	Partly Cloudy	83º	15%	E 9 mph	70%
7pm	Partly Cloudy	81º	19%	E 8 mph	75%
8pm	Partly Cloudy	80º	18%	E 6 mph	80%
9pm	Partly Cloudy	79º	7%	E 4 mph	83%
10pm	Partly Cloudy	79º	21%	E 3 mph	83%
11pm	Partly Cloudy	78º	14%	ENE 3 mph	86%
Tue Sep 22	PM Thunderstorms View Hourly	87º / 75º	42%	NE 10 mph	75%
12am	Partly Cloudy	78º	8%	ENE 2 mph	87%
1am	Mostly Clear	77º	6%	NNE 2 mph	88%
2am	Mostly Clear	77º	7%	NW 2 mph	88%
3am	Partly Cloudy	76º	14%	NW 2 mph	89%
4am	Partly Cloudy	75º	11%	NNW 1 mph	91%
5am	Partly Cloudy	75º	8%	NNW 2 mph	90%
6am	Partly Cloudy	75º	9%	NNW 2 mph	91%
7am	Partly Cloudy	75º	9%	N 3 mph	92%
8am	Partly Cloudy	76º	13%	NNW 3 mph	92%
9am	Partly Cloudy	78º	12%	N 4 mph	86%
10am	Partly Cloudy	81º	24%	N 5 mph	77%
11am	Partly Cloudy	83º	23%	NNE 6 mph	72%
12pm	Partly Cloudy	85º	24%	NE 7 mph	68%
1pm	Scattered Thunderstorms	85º	42%	NE 7 mph	67%
2pm	Scattered Thunderstorms	86º	42%	ENE 8 mph	65%
3pm	Mostly Cloudy	85º	24%	ENE 9 mph	68%
4pm	Mostly Cloudy	84º	17%	ENE 9 mph	70%
5pm	Partly Cloudy	83º	15%	ENE 9 mph	73%
6pm	Partly Cloudy	83º	5%	ENE 9 mph	74%
7pm	Partly Cloudy	82º	6%	ENE 7 mph	77%
8pm	Partly Cloudy	80º	8%	ENE 6 mph	81%
9pm	Mostly Clear	79º	5%	ENE 5 mph	83%
10pm	Mostly Clear	79º	11%	ENE 4 mph	85%
11pm	Mostly Clear	78º	15%	NE 3 mph	88%
Wed Sep 23	PM Thunderstorms View Hourly	85º / 73º	38%	NNE 12 mph	79%
12am	Mostly Clear	78º	7%	NE 3 mph	90%
1am	Partly Cloudy	77º	7%	NNE 3 mph	91%
2am	Mostly Clear	77º	9%	N 2 mph	91%
3am	Partly Cloudy	77º	9%	NNW 2 mph	91%
4am	Partly Cloudy	76º	9%	N 3 mph	92%
5am	Partly Cloudy	76º	10%	NNW 4 mph	92%
6am	Partly Cloudy	76º	10%	NNW 4 mph	92%
Thu Sep 24	Showers	81º / 69º	37%	NNE 14 mph	78%
Fri Sep 25	Partly Cloudy	79º / 64º	16%	NNE 12 mph	73%
Sat Sep 26	Partly Cloudy	81º / 64º	6%	NNE 10 mph	63%
Sun Sep 27	Partly Cloudy	84º / 67º	9%	NNW 9 mph	60%
Mon Sep 28	Partly Cloudy	85º / 69º	18%	N 9 mph	61%

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

NOAA Weather Marine Forecast for Main Street Bridge, St Johns River, FL

Today

High : 86ºF
NW wind 5 to 14 kt becoming ENE in the afternoon. Winds could gust as high as 21 kt. A chance of showers, with thunderstorms also possible after 10am. Seas 1 ft or less.

Tonight

Low : 75ºF
E wind 5 to 10 kt becoming S after midnight. A slight chance of showers and thunderstorms before midnight, then a slight chance of showers between midnight and 5am. Seas 1 ft or less.

Tuesday

High : 85ºF
Variable winds less than 5 kt becoming ENE 5 to 10 kt in the morning. A chance of showers and thunderstorms before 4pm, then a slight chance of showers and thunderstorms after 5pm. Seas 1 ft or less.

Tuesday Night

Low : 75ºF
Variable winds 5 kt or less. A slight chance of showers and thunderstorms before 7pm, then a slight chance of showers after 2am. Seas 1 ft or less.

Wednesday

High : 84ºF
N wind 5 to 13 kt becoming NE in the afternoon. Showers likely, with thunderstorms also possible after 11am. Seas 1 ft or less.

Wednesday Night

Low : 75ºF
NE wind 6 to 9 kt. A chance of showers and thunderstorms. Seas 1 ft or less.

Thursday

High : 82ºF
NNE wind 13 to 18 kt, with gusts as high as 25 kt. A chance of showers and thunderstorms. Seas 1 ft or less.

Thursday Night

Low : 72ºF
NNE wind 13 to 15 kt. A chance of showers, mainly before 2am. Seas 1 ft or less.

Friday

High : 79ºF
N wind 15 to 17 kt. A slight chance of showers. Seas 1 ft or less.

Current Weather Conditions In Main Street Bridge, St Johns River, FL

As Of: 3 minutes ago

Temperature: 75ºF
Feels Like: 75ºF

Wind Speed: 4mph
Direction: 0º (NNW)
Gusts: 4mph

Cloud Cover: Mostly Cloudy
Visibility: 7mi

Pressure: 29.93"
Humidity: 94%
Dew Point: 0ºF

The weather right now in Main Street Bridge, St Johns River, FL is Mostly Cloudy. The current temperature is 75°F, and the expected high and low for today, Monday, September 21, 2026, are 86° high temperature and 74°F low temperature. The wind is currently blowing at 4 miles per hour, and coming from the North Northwest. The wind is gusting to 4 mph. With the wind and the atmosphere the temperature feels like 75° Fahrenheit. Expected precipitation is 10 percent, with current humidity at 94 percent, and air pressure at 29.93 in. Visibility is 7 nautical miles. There are no current weather alert(s).