Southwest Florida Airport (RSW) Weather 09/18/2025
Today
90
Heavy Rain
Tonight
76
Heavy Rain then Scattered T-storms
Saturday
89
Showers Likely
Saturday Night
77
Scattered T-storms
Sunday
90
Scattered T-storms then Showers Likely
Sunday Night
76
Showers Likely then Scattered T-storms
Monday
91
Scattered T-storms then Showers
Monday Night
74
Showers then Scattered T-storms
Tuesday
90
Scattered T-storms then Showers Likely
Tuesday Night
75
Showers Likely then Scattered T-storms
Wednesday
91
Scattered T-storms then Showers Likely
Wednesday Night
75
Showers Likely then Scattered T-storms
Thursday
90
Scattered T-storms then Showers Likely
Weekly Forecast
Today
Showers and thunderstorms likely, mainly after 3pm. Some of the storms could produce heavy rainfall. Partly sunny, with a high near 90. Heat index values as high as 102. Calm wind becoming south 5 to 7 mph in the morning. Chance of precipitation is 60%. New rainfall amounts between three quarters and one inch possible.
Tonight
Showers and thunderstorms likely, mainly before 8pm. Some of the storms could produce heavy rainfall. Mostly cloudy, with a low around 76. East southeast wind 3 to 7 mph. Chance of precipitation is 60%. New rainfall amounts between a half and three quarters of an inch possible.
Saturday
Scattered showers and thunderstorms, then showers likely and possibly a thunderstorm after 8am. Partly sunny, with a high near 89. Heat index values as high as 101. South southeast wind 5 to 9 mph becoming southwest in the afternoon. Chance of precipitation is 70%. New rainfall amounts between a quarter and half of an inch possible.
Saturday Night
Scattered showers and thunderstorms, mainly before 2am. Mostly cloudy, with a low around 77. South southwest wind around 6 mph becoming calm in the evening. Chance of precipitation is 30%.
Sunday
Scattered showers and thunderstorms, then showers likely and possibly a thunderstorm after 2pm. Mostly sunny, with a high near 90. Light and variable wind becoming southwest 5 to 8 mph in the morning. Chance of precipitation is 70%.
Sunday Night
Showers likely and possibly a thunderstorm before 8pm, then scattered showers and thunderstorms, mainly between 8pm and 2am. Partly cloudy, with a low around 76. West wind around 5 mph becoming calm in the evening. Chance of precipitation is 60%.
Monday
Scattered showers and thunderstorms, then showers and possibly a thunderstorm after 2pm. High near 91. Calm wind becoming west southwest 5 to 7 mph in the afternoon. Chance of precipitation is 80%.
Monday Night
Showers and possibly a thunderstorm before 8pm, then scattered showers and thunderstorms, mainly between 8pm and 2am. Low around 74. North wind around 5 mph becoming light and variable in the evening. Chance of precipitation is 80%.
Tuesday
Scattered showers and thunderstorms, then showers likely and possibly a thunderstorm after 2pm. Partly sunny, with a high near 90. East wind 5 to 7 mph becoming south southwest in the afternoon. Chance of precipitation is 70%.
Tuesday Night
Showers likely and possibly a thunderstorm before 8pm, then scattered showers and thunderstorms, mainly between 8pm and 2am. Mostly cloudy, with a low around 75. Chance of precipitation is 60%.
Wednesday
Showers and thunderstorms likely. Partly sunny, with a high near 91. Chance of precipitation is 70%.
Wednesday Night
Showers and thunderstorms likely. Mostly cloudy, with a low around 75. Chance of precipitation is 60%.
Thursday
Showers and thunderstorms likely. Partly sunny, with a high near 90. Chance of precipitation is 70%.