Friday's forecast calls for scattered clouds, a high near 97 degrees, and a 20% chance of rain.
Heat Builds Through The Afternoon
East-southeasterly winds of 5 to 10 knots are forecast Friday. Rainfall amounts are not specified, so outdoor plans should account for the heat.
Friday night will be mostly clear with a low around 76.
Weekend Heat Stays Put
How This Stretch Compares
This forecast is hot but falls short of San Antonio's most prolonged recent extremes. The San Antonio Report noted that the city tied a record with 21 consecutive days above 100 degrees in summer 2023, when projected highs reached 104 to 105 degrees. Meanwhile, the National Weather Service Austin/San Antonio said its seasonal drought outlook called for drought to persist in areas already experiencing it. Longer-term records provide broader context but do not determine this short-range forecast. A City of San Antonio climate report found that observed daily temperature and rainfall records at San Antonio International Airport show trends consistent with broader patterns documented across the United States and Texas.
Saturday will be sunny with a high near 97 and heat index values up to 102. Sunday could be slightly warmer near 98 under mostly sunny skies, followed by another high near 98 Monday.
Small Rain Window Arrives Tuesday
Tuesday brings a slight chance of thunderstorms. The available forecast does not specify Wednesday's conditions, while Thursday is expected to be partly sunny with highs in the upper 90s to near 100.
No watches, warnings, or advisories are listed for the San Antonio area. With afternoons near 100 and warm nights in the mid-to-upper 70s, residents should move strenuous outdoor activity to cooler hours, take breaks in shade or air conditioning, and check on people and pets vulnerable to heat. Bexar County identifies adults 65 and older, children 4 and younger, people with conditions such as heart disease, and residents without air conditioning as higher-risk groups when temperatures and heat indexes rise.
