SUNDAY NIGHT: Mostly dry with a stray thunderstorm west.
MONDAY THROUGH THURSDAY: Heavy downpours could result in localized flooding.
TEMPERATURES: Staying below-average with highs in the mid and upper 80s specifically on Tuesday and Wednesday.
FORECAST
MONDAY
Expect overcast conditions on your morning commute, but little to no shower activity. The day will stay primarily dry and temperatures will warm into the 90s in the afternoon. Rain and storm activity will begin after you leave work, and Hill Country areas will be the first to receive the activity. Showers and storms will move southward overnight.
Rain activity start over northern areas Monday evening. (Copyright 2026 by KSAT - All rights reserved.)
NEXT WEEK
Rain totals will be spotty through the start of the week. (Copyright 2026 by KSAT - All rights reserved.)
Scattered showers and thunderstorms are expected each day through at least Thursday morning. Deep tropical moisture will support periods of locally heavy rainfall. Some storms could produce intense downpours capable of causing minor flooding, especially in low-lying and poor drainage areas. While it’s still too early to determine exactly where the heaviest rain will fall, Tuesday and Wednesday appear to have the best potential for widespread coverage.
REST OF THE WEEK
Cloud cover and frequent rain will also keep temperatures below seasonal averages through the middle of the week. Some areas may even remain below 90 degrees Tuesday through Thursday. Rain chances begin to decrease late Thursday, with drier weather expected to return by the end of the week.
Extended Forecast (Copyright 2026 by KSAT - All rights reserved.)
Daily Forecast
KSAT meteorologists keep you on top of the ever-changing South Texas weather.
Shelby Ebertowski joined KSAT 12 News in January 2025. She came to San Antonio from Fargo, North Dakota via the University of North Dakota, where she learned the ropes as a weekend forecaster over two years at KVLY. Her love of weather love began after experiencing Hurricane Harvey in 2017.
Leah Rodriguez joined the Weather Authority Team in 2026 after watching KSAT 12 while growing up in Pearsall. She graduated with a Bachelor's Degree in Meteorology from Texas A&M University and worked in Lubbock for two years.
When she's not watching the radar, Leah enjoys spending time with her family and her dog Luby.