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Grothaus Lake, TX Weather Forecast
Grothaus Lake, TX Weather Forecast Date: 124 AM CDT Tue Aug 04 2026
The area/counties/county of: Bexar, including the city of San Antonio.or toggle through each period.
Rest of Tonight... Mostly clear. Lows in the mid 70s. Southeast winds 5 to 10 mph with gusts up to 20 mph.
Tuesday... Partly cloudy in the morning, then clearing. Highs in the upper 90s. Southeast winds 10 to 15 mph. Highest heat index readings up to 105.
Tuesday Night... Mostly clear in the evening, then becoming partly cloudy. Lows in the upper 70s. Southeast winds 10 to 15 mph.
Wednesday... Partly cloudy in the morning, then clearing. Highs in the upper 90s. Southeast winds 10 to 15 mph. Highest heat index readings up to 105.
Wednesday Night... Mostly clear in the evening, then becoming partly cloudy. Lows in the mid 70s. Southeast winds 10 to 15 mph.
Thursday... Partly cloudy in the morning, then clearing. Highs in the upper 90s. Highest heat index readings up to 105.
Thursday Night... Partly cloudy. Lows in the mid 70s. Highs in the mid 90s. Highest heat index readings up to 105.
Friday... Partly cloudy. Lows in the mid 70s. Highs in the mid 90s. Highest heat index readings up to 105.
Friday Night... Mostly clear. Lows in the mid 70s.
Saturday... Partly cloudy in the morning, then clearing. Highs in the mid 90s. Highest heat index readings up to 105.
Saturday Night... Mostly clear. Lows in the mid 70s. Highs in the mid 90s. Highest heat index readings up to 105.
Sunday... Mostly clear. Lows in the mid 70s. Highs in the mid 90s. Highest heat index readings up to 105.
POP = Probability of Precipitation
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