Here’s what to expect when a cold front rolls into town for the end of a hotter-than-usual October in the Alamo City.
SAN ANTONIO — Recent years have conjured up a tale of two Halloweens in the Alamo City, with San Antonio reaching 90 degrees for the holiday in 2024 after recording a more seasonal high temperature of just 61 the year prior.
At this point, Halloween 2025 is looking like it may split the difference.
As of Monday, the KENS 5 forecast calls for San Antonio reaching 74 degrees Friday afternoon—the result of a cold front bringing brisker conditions at the end of what’s been a hotter-than-usual October for the city. We’ve averaged a daily high temperature of 91 degrees this month – a good eight degrees warmer than what we experience historically – while averaging a daily low of 67 compared to the historical norm of 61, according to National Weather Service data.
All that sets up a Halloween break from the heat likely to come as more of a relief than a nightmare for those with trick-or-treating plans. It also goes against recent history: Per the NWS, just nine times this century has the mercury stopped in the 70s or cooler on Halloween in San Antonio.
Temperatures are expected to fall into the 60s by 8 p.m. for the start of prime trick-or-treating hours. Sunset will be at 6:48 p.m., with mild winds.
Aside from that chilly Halloween in 2023, we’re set up for the briskest Halloween since 2019, when it reached just 58 degrees and trick or treaters had to incorporate layers into their costumes.
Friday’s morning low is expected to dip into the high 40s, conditions San Antonio hasn’t seen since early April.
The best news: After a stormy weekend, the skies should remain sunny and clear this Friday. The better for everyone to enjoy the best and spookiest Halloween yard decorations their neighborhoods have to offer.
Looking ahead, temperatures will rebound into the 80s for the start of November, but morning lows in the low-to-mid-60s look to become more consistent as we get further into the holiday season.
