San Antonio wakes up cloudy and muggy this morning, with temperatures hovering near 81°F and dew points stuck in the mid 70s. Another hot afternoon is on tap, with highs around 92°F and a late day heat index near 100°F that will make any time outside feel noticeably hotter than the thermometer suggests.
Afternoon Storm Threat
There is a slight chance of rain through the late morning, but the main window for scattered showers and a few thunderstorms runs from about 1 to 4 p.m. this afternoon (Friday, June 12). Any storm that does pop up could bring brief heavy downpours and some gusty winds, although coverage is expected to stay limited. According to the NWS Austin/San Antonio, precipitation chances this afternoon are in the mid 20% range.
Heat Through The Weekend
Highs are expected to hold near 92°F through Sunday (June 14), with overnight lows only dipping into the mid to upper 70s, so the nights will not offer much relief. That persistent humidity will keep heat index values elevated, so it is best to plan strenuous outdoor activities for early morning or later in the evening when conditions are a bit more tolerable.
Early-Week Front Brings Heavier Rain
A rare June cold front is forecast to slide into the area Monday, June 15, bringing a noticeable jump in rain chances and scattered showers and thunderstorms Monday into Tuesday (June 16). Forecasters note that the primary concerns are gusty winds and locally heavy rainfall, with at least a marginal risk for excessive rainfall on Monday. See the NWS Austin/San Antonio discussion for the latest thinking on timing and impacts.
What To Do Today
Hydrate early and often, limit exertion during the peak heat hours, and keep an eye on radar if you have afternoon plans that keep you outside. The City of San Antonio has cooling center and resilience hub information available for residents, so check the City of San Antonio resources for locations and hours.
Bottom line, expect hot and humid conditions with isolated late day storms through the weekend, followed by a wetter Monday into Tuesday. We will report any watches or warnings if they are issued.
