Weather forecast for: Saint Augustine FL
Last Update: 2:21 pm EDT Sep 11, 2026
This Afternoon: Showers and thunderstorms likely, mainly after 5pm. Partly sunny, with a high near 91. Heat index values as high as 102. Southeast wind around 9 mph. Chance of precipitation is 60%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Tonight: A 40 percent chance of showers and thunderstorms, mainly before 1am. Mostly cloudy, with a low around 75. South wind 5 to 9 mph becoming east in the evening.
Saturday: A 40 percent chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 88. Light and variable wind becoming southeast 5 to 10 mph in the morning.
Saturday Night: A 30 percent chance of showers and thunderstorms, mainly before 8pm. Mostly cloudy, with a low around 75. South wind 3 to 8 mph.
Sunday: A 40 percent chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 89. Light and variable wind becoming east 5 to 8 mph in the afternoon.
Sunday Night: A 30 percent chance of showers and thunderstorms, mainly before 8pm. Mostly cloudy, with a low around 76.
Monday: A 40 percent chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 89.
Monday Night: A chance of showers and thunderstorms before 2am, then a slight chance of showers. Partly cloudy, with a low around 77. Chance of precipitation is 30%.
Tuesday: A slight chance of showers, then a chance of showers and thunderstorms after 8am. Mostly sunny, with a high near 86. Breezy. Chance of precipitation is 40%.
Tuesday Night: A chance of showers and thunderstorms. Mostly cloudy, with a low around 77. Breezy. Chance of precipitation is 30%.
Wednesday: Showers likely and possibly a thunderstorm. Mostly cloudy, with a high near 84. Very windy. Chance of precipitation is 70%.
Wednesday Night: A 40 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 76. Windy.
Thursday: A 50 percent chance of showers and thunderstorms. Partly sunny, with a high near 84. Breezy.