10-Day Weather Forecast - Port Saint John, FL

Mostly sunny late in the morning then becoming partly sunny. A chance of showers and thunderstorms. Highs in the mid 90s. Southwest winds around 5 mph becoming southeast 5 to 10 mph late in the afternoon and towards sunset. Chance of rain 40 percent. Heat index values up to 109.

Partly cloudy. Lows in the upper 70s. South winds around 5 mph becoming southwest after midnight.

Mostly sunny. A slight chance of showers and thunderstorms late in the morning then a chance of showers and thunderstorms late in the afternoon and towards sunset. Highs in the mid 90s. Southwest winds around 5 mph becoming southeast 5 to 10 mph late in the afternoon and towards sunset. Chance of rain 30 percent. Heat index values up to 109.

Mostly clear. A slight chance of showers and thunderstorms in the late evening and early morning. Lows in the upper 70s. South winds around 5 mph becoming southwest after midnight. Chance of rain 20 percent.

Mostly sunny. A slight chance of showers and thunderstorms late in the morning then a chance of showers and thunderstorms late in the afternoon and towards sunset. Highs in the lower 90s. South winds around 5 mph becoming east 5 to 10 mph late in the afternoon and towards sunset. Chance of rain 50 percent. Heat index values up to 106.

Partly cloudy. A chance of showers and thunderstorms in the late evening and early morning then a slight chance of showers and thunderstorms after midnight. Lows in the upper 70s. Chance of rain 40 percent.

Partly sunny. A chance of showers and thunderstorms late in the morning then showers and thunderstorms likely late in the afternoon and towards sunset. Highs in the lower 90s. Chance of rain 70 percent.

Partly cloudy. A chance of showers and thunderstorms in the late evening and early morning then a slight chance of showers and thunderstorms after midnight. Lows in the upper 70s. Chance of rain 30 percent.

Partly sunny. A chance of showers and thunderstorms late in the morning then showers and thunderstorms likely late in the afternoon and towards sunset. Highs in the lower 90s. Chance of rain 70 percent.

Partly cloudy. A slight chance of showers and thunderstorms in the late evening and early morning. Lows in the upper 70s. Chance of rain 20 percent.

Partly sunny. A chance of showers and thunderstorms late in the morning then showers and thunderstorms likely late in the afternoon and towards sunset. Highs in the lower 90s. Chance of rain 60 percent.

Mostly clear. A slight chance of showers and thunderstorms in the late evening and early morning. Lows in the upper 70s. Chance of rain 20 percent.

Mostly sunny with a chance of showers and thunderstorms. Highs in the lower 90s. Chance of rain 50 percent.

Clear with a 35% chance for rain and thunderstorms. Low temperature around 78F. Dew point will be around 74F with an average humidity of 82%. Winds will be 3 mph from the NE.

Sunny with a 45% chance for rain and thunderstorms. High temperature around 93F. Dew point will be around 75F with an average humidity of 68%. Winds will be 3 mph from the W.

Partly cloudy with a 55% chance for rain and thunderstorms. Low temperature around 78F. Dew point will be around 74F with an average humidity of 79%. Winds will be 2 mph from the W.

Mostly sunny with a 50% chance for rain and thunderstorms. High temperature around 92F. Dew point will be around 75F with an average humidity of 68%. Winds will be 2 mph from the W.

Partly cloudy with a 65% chance for rain and thunderstorms. Low temperature around 78F. Dew point will be around 74F with an average humidity of 80%. Winds will be 1 mph from the SE.