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Lagoon Reservoir, TX Weather Forecast
Lagoon Reservoir, TX Weather Forecast Date: 122 AM CDT Fri Aug 14 2026
The area/counties/county of: Inland Brazoria, including the cities of: Pearland, Alvin, and Angleton.or toggle through each period.
Rest of Tonight... Partly cloudy. Near steady temperature in the upper 70s. South winds 5 to 10 mph.
Friday... Mostly sunny with a slight chance of showers and thunderstorms. Humid with highs in the lower 90s. Southeast winds 10 to 15 mph. Chance of rain 20%. Heat index values up to 106.
Friday Night... Partly cloudy. Humid with lows in the upper 70s. South winds 10 to 15 mph, diminishing to around 5 mph after midnight. Heat index values up to 105 early in the evening.
Saturday... Sunny with highs in the mid 90s. Southeast winds 5 to 10 mph. Heat index values up to 107.
Saturday Night... Mostly clear. Humid with lows in the mid 70s. South winds 5 to 10 mph.
Sunday... Sunny. Highs in the mid 90s.
Sunday Night... Mostly clear. Lows in the mid 70s.
Monday... Sunny, hot with highs in the mid 90s. Heat index values up to 105.
Monday Night... Clear. Lows in the mid 70s. Heat index values up to 105 early in the evening.
Tuesday... Sunny, hot with highs in the mid 90s. Heat index values up to 110.
Tuesday Night... Mostly clear. Lows in the mid 70s. Heat index values up to 105 early in the evening.
Wednesday... Sunny, hot with highs in the mid 90s. Heat index values up to 105.
Wednesday Night... Mostly clear. Lows in the mid 70s.
POP = Probability of Precipitation
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