Local Forecast

Port Saint John, FL Weather Forecast & Alerts

Current conditions, 5-day forecast, and active NWS weather alerts for Port Saint John, FL.

Active Alerts 2 active

Hour-by-Hour  Current Observation

Friday 1:55 PM EDTFriday 1:55 PM

°F °C
Regional Observations →
94°F

Mostly Clear

  • 95° / 77° High / Low
  • 106° Feels Like
  • 0% Chance of Rain

Wind

8 mph

SSW

UV Index

12

Extreme

Humidity

55%

Dew 75°F

Sun

6:25 AM · 8:22 PM

Rise · Set

Source: NASA SHUTTLE FCL (KTTS). Slider scrubs the next 12 hours.

5-Day Outlook

Through Tuesday

Local Radar →

Today

95° 77°

Thunderstorms Likely

Overnight: Thunderstorms Likely

Detailed forecast

Today

Showers and thunderstorms likely after 2pm. Partly sunny. High near 95, with temperatures falling to around 91 in the afternoon. Heat index values as high as 107. Southwest wind 5 to 10 mph. Chance of precipitation is 60%. New rainfall amounts between a quarter and half of an inch possible.

Night

Showers and thunderstorms likely before midnight. Mostly cloudy, with a low around 77. Southwest wind 0 to 5 mph. Chance of precipitation is 70%. New rainfall amounts between a quarter and half of an inch possible.

Saturday

93° 77°

Thunderstorms

Overnight: Thunderstorms

Detailed forecast

Saturday

Showers and thunderstorms after 1pm. Mostly sunny. High near 93, with temperatures falling to around 88 in the afternoon. Heat index values as high as 103. West southwest wind around 5 mph. Chance of precipitation is 80%. New rainfall amounts between a quarter and half of an inch possible.

Night

Showers and thunderstorms likely before 2am, then patchy fog. Mostly cloudy, with a low around 76. South southwest wind 0 to 5 mph. Chance of precipitation is 70%.

Sunday

93° 77°

Thunderstorms Likely

Overnight: Partly Sunny

Detailed forecast

Sunday

Patchy fog before 8am, then patchy fog and a slight chance of rain showers between 8am and 11am, then showers and thunderstorms likely. Mostly sunny, with a high near 92. Northwest wind 0 to 5 mph. Chance of precipitation is 60%.

Night

Showers and thunderstorms likely before 8pm. Partly cloudy, with a low around 77. South southeast wind 0 to 5 mph. Chance of precipitation is 60%.

Monday

95° 78°

Chance of Scattered Thunderstorms

Overnight: Partly Sunny

Detailed forecast

Monday

A chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 94. South southwest wind 0 to 5 mph. Chance of precipitation is 30%.

Night

A chance of showers and thunderstorms before 8pm. Partly cloudy, with a low around 78. South wind 0 to 5 mph. Chance of precipitation is 30%.

Tuesday

95° 78°

Isolated T-storm

Overnight: Partly Sunny

Detailed forecast

Tuesday

A slight chance of showers and thunderstorms after 2pm. Sunny, with a high near 95. South southwest wind 0 to 10 mph. Chance of precipitation is 20%.

Night

A slight chance of showers and thunderstorms before 8pm. Partly cloudy, with a low around 78. South southwest wind 5 to 10 mph. Chance of precipitation is 20%.

Port Saint John, FL Weather Analysis Tools