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Radar shows storms rolling into San Antonio this afternoon – MySA

Radar shows storms rolling into San Antonio this afternoon  MySA Isolated showers and thunderstorms are moving into San Antonio, bringing slight rain chances to South Central Texas, according to National Weather Service (NWS) radar. Forecast maps show Alamo City…
One Place News   •   September 21, 2026   •   Updated September 21, 2026
Radar shows storms rolling into San Antonio this afternoon – MySA

Radar shows storms rolling into San Antonio this afternoon  MySA

Isolated showers and thunderstorms are moving into San Antonio, bringing slight rain chances to South Central Texas, according to National Weather Service (NWS) radar. Forecast maps show Alamo City will have a 15% chance of rain in the afternoon and evening on Monday, September 21, though rain chances and timing will vary across the metro. The San Antonio International Airport is reporting a 20 percent chance of showers and thunderstorms after 1 p.m. before returning later on Tuesday night, according to the 7-Day Forecast map. West of Bexar County, near the Castroville Municipal Airport (KCVB), conditions also show a 20% chance of showers and thunderstorms after arriving at 1 p.m. today, with a calm wind kicking up in the afternoon.

Meanwhile, in Balcones Heights, there is also a 20% chance of storms barreling down after 4 p.m, thouhg much of the day will be sunny with calm winds. Observation of a Weather.com radar map shows little activity approaching the San Antonio area through parts of the early afternoon, but by 2 p.m.and into the evening, that activity begins to blossom, moving across the region. The east and south portions of the city appear to expect mostly dry, sunny weather until Tuesday. That's when, according to the NWS, storm chances appear to increase to a cumulative 20% through both Tuesday and

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