BOCA RATON, FL (BocaNewsNow.com) (Copyright © 2026 MetroDesk Media, LLC) — Fall is not here quite yet. Expect extreme heat Sunday with rain, then slightly cooler the rest of the week with more rain. Here is the BocaNewsNow.com/National Weather Service forecast for Boca Raton, Delray Beach, Boynton Beach, and South Palm Beach County:
Tonight: A chance of showers and thunderstorms before 11pm, then a slight chance of showers between 11pm and midnight. Mostly cloudy, with a low around 79. East wind around 8 mph. Chance of precipitation is 30%.
Sunday: A slight chance of showers, with thunderstorms also possible after 11am. Mostly sunny, with a high near 90. Heat index values as high as 102. Southeast wind 7 to 11 mph. Chance of precipitation is 20%.
Sunday Night: Partly cloudy, with a low around 77. East wind around 5 mph becoming calm in the evening.
Monday: A 50 percent chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 90. Calm wind becoming southeast 5 to 8 mph in the morning.
Monday Night: A 30 percent chance of showers and thunderstorms before 2am. Mostly cloudy, with a low around 76. Light southeast wind.
Tuesday: A slight chance of showers before 11am, then a slight chance of showers and thunderstorms between 11am and 2pm, then showers and possibly a thunderstorm after 2pm. High near 90. Calm wind becoming south around 6 mph in the afternoon. Chance of precipitation is 80%.
Tuesday Night: Showers and possibly a thunderstorm before 8pm, then a chance of showers and thunderstorms, mainly between 8pm and 2am. Low around 75. Calm wind. Chance of precipitation is 80%.
Wednesday: A chance of showers and thunderstorms, then showers and possibly a thunderstorm after 2pm. High near 90. Calm wind becoming south 5 to 7 mph in the afternoon. Chance of precipitation is 80%.
Wednesday Night: Showers and possibly a thunderstorm before 8pm, then a chance of showers and thunderstorms, mainly between 8pm and 2am. Low around 75. Chance of precipitation is 80%.
Thursday: Showers and thunderstorms. High near 89. Chance of precipitation is 80%.
Thursday Night: Showers and thunderstorms. Low around 75. Chance of precipitation is 80%.
Friday: Showers and thunderstorms likely. Mostly sunny, with a high near 89. Chance of precipitation is 60%.
Friday Night: Showers and thunderstorms likely. Mostly cloudy, with a low around 77. Chance of precipitation is 60%.
Saturday: A chance of showers and thunderstorms. Mostly sunny, with a high near 89.
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