Casselberry, FL 7-Day Night Weather Forecast
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Casselberry, FL Weather Forecast


Casselberry, FL Weather Forecast Date: 345 AM EDT Tue Aug 25 2026
The area/counties/county of: Seminole, including the cities of: Altamonte Springs, Casselberry, Oviedo, Sanford, and Winter Springs.or toggle through each period.
Today... Partly sunny with a slight chance of showers and thunderstorms late in the morning, then considerable cloudiness with showers and thunderstorms likely late in the afternoon and towards sunset. Highs in the lower 90s. Southwest winds around 5 mph. Chance of rain 60%. Heat index values up to 102.
Tonight... Partly cloudy. A slight chance of showers and thunderstorms in the late evening and early morning. Lows in the mid 70s. Light and variable winds. Chance of rain 20%.
Wednesday... Mostly sunny with a chance of showers and thunderstorms late in the morning, then partly cloudy with showers and thunderstorms likely late in the afternoon and towards sunset. Highs in the lower 90s. South winds around 5 mph becoming southeast 5 to 10 mph late in the afternoon and towards sunset. Chance of rain 70%. Heat index values up to 102.
Wednesday Night... Partly cloudy. A slight chance of showers and thunderstorms in the late evening and early morning. Lows in the mid 70s. South winds around 5 mph. Chance of rain 20%.
Thursday... Mostly sunny late in the morning, then partly cloudy with showers and thunderstorms likely late in the afternoon and towards sunset. Highs in the lower 90s. South winds 5 to 10 mph. Chance of rain 70%. Heat index values up to 101.
Thursday Night... Partly cloudy. A slight chance of showers and thunderstorms in the late evening and early morning. Lows in the mid 70s. Chance of rain 20%.
Friday... Mostly sunny late in the morning, then partly cloudy with showers and thunderstorms likely late in the afternoon and towards sunset. Highs in the lower 90s. Chance of rain 70%.
Friday Night... Partly cloudy. A chance of showers and thunderstorms in the late evening and early morning. Lows in the mid 70s. Chance of rain 30%.
Saturday... Mostly sunny late in the morning, then partly cloudy with showers and thunderstorms likely late in the afternoon and towards sunset. Highs in the lower 90s. Chance of rain 70%.
Saturday Night... Partly cloudy. A slight chance of showers and thunderstorms in the late evening and early morning. Lows in the mid 70s. Chance of rain 20%.
Sunday... Partly sunny. A slight 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%.
Sunday Night... Partly cloudy. Lows in the mid 70s.
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