Justin Horne

San Antonio

Meteorologist and Reporter at KSAT-TV (San Antonio, TX)

KSAT 12 Meteorologist, Native Texan, Storm Chaser, Basketball lover, & Dad

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Articles

San Antonio’s first triple digit day of 2025 was a record breaker

1 day ago | tspantx.com | Justin Horne |Adam Caskey

RECORD HEAT: Through Friday100°+: Next two daysPEAK HEAT WEDNESDAY: Hottest temps expected tomorrow“COOL DOWN”: Dropping below 100° this weekendAnd so it begins… Our infamous triple digit count meter makes a return today. The last three years have been brutal:YEARNo. OF 100° DAYS20242720237520225820213HOTTEST DAY ON WEDNESDAYRecords will be broken. Tomorrow likely brings the peak of this heat wave. Triple digits are a certainty, it’s just a matter of how far above 100° we go.
San Antonio’s first triple digits of 2025 expected today

2 days ago | ksat.com | Justin Horne

WeatherMost locations in South Texas will reach 100 or aboveJustin Horne, KSAT Weather Authority MeteorologistPublished: May 13, 2025 at 4:55 AMTags: ForecastFORECAST HIGHLIGHTS100°+: Most all of South Texas will exceed 100 this afternoonPEAK HEAT WEDNESDAY: Hottest temps expected tomorrow“COOL DOWN”: Temps do subside some this weekend FORECASTAnd so it begins... Our infamous triple digit count meter makes a return today.
WATCH LIVE: South Texas will be one of the hottest places on Earth this week

2 days ago | tspantx.com | Justin Horne |Sarah Spivey

HOT TODAY: Low-90s this afternoonRECORD-SETTING HEAT: 100°+ likely Tuesday through FridayBy now, you’ve probably heard the news. South Texas is about to get blasted by some unusual May heat. In fact, we’ll likely be setting multiple records, from daily record highs to potentially some of the hottest May temperatures all-time. Here’s an update. RECORD HEAT WAVEStarting Tuesday, temperatures will skyrocket into the 100s. Mostly sunny skies and a southwest wind will help us get there.
ERCOT: Will the power stay on through this record heat wave? Details here

2 days ago | tspantx.com | Rebecca Salinas |Sarah Spivey |Justin Horne

SAN ANTONIO – South Texas is expected to be one of the hottest places on the globe this week, as temperatures are forecast to soar to near 105 degrees. >> Check out the latest forecast hereThe Electric Reliability Council of Texas anticipates that the power grid will handle the increased demand, largely thanks to solar power. Texas will likely set multiple records this week. Starting Tuesday, temperatures will skyrocket into the 100s.
Record heat expected in Texas this week. Good thing ERCOT relies on solar power.

3 days ago | ksat.com | Rebecca Salinas |Sarah Spivey |Justin Horne

Local NewsMore than 50% of Texas’ fuel mix is renewable energyPublished: May 12, 2025 at 1:13 PMTags: ERCOT, Energy, Texas, Weather, Whatever The WeatherFILE IMAGESAN ANTONIO – South Texas is expected to be one of the hottest places on the globe this week, as temperatures are forecast to soar to near 105 degrees.
South Texas could be one of the hottest places on Earth by Wednesday

3 days ago | ksat.com | Justin Horne

WeatherTemperatures are forecast to soar to near 105°Justin Horne, KSAT Weather Authority MeteorologistPublished: May 12, 2025 at 4:52 AMUpdated: May 12, 2025 at 7:07 AMTags: ForecastFORECAST HIGHLIGHTSCOOL MORNING: Before the heat, it’ll be in the 50s this AMHOT TODAY: Low-90s this afternoonRECORD-SETTING HEAT: 100°+ likely Tuesday through Friday FORECASTBy now, you’ve probably heard the news. South Texas is about to get blasted by some unusual May heat.
South Texas could be one of the hottest places on Earth by Wednesday

3 days ago | tspantx.com | Justin Horne

COOL MORNING: Before the heat, it’ll be in the 50s this AMHOT TODAY: Low-90s this afternoonRECORD-SETTING HEAT: 100°+ likely Tuesday through FridayBy now, you’ve probably heard the news. South Texas is about to get blasted by some unusual May heat. In fact, we’ll likely be setting multiple records, from daily record highs to potentially some of the hottest May temperatures all-time. Here’s an update.
Mother’s Day looks perfect. Next week... not so much.

6 days ago | ksat.com | Justin Horne

WeatherTemperatures are forecast to soar to near 100°Justin Horne, KSAT Weather Authority MeteorologistPublished: May 9, 2025 at 4:43 AMTags: ForecastFORECAST HIGHLIGHTSSTRAY POP-UP TODAY/SAT: Brief, shower or storm possible during afternoon COOL MORNINGS: 50s are forecast next three mornings TRIPLE DIGITS?: San Antonio will approach 100° next week FORECAST🌹Roses are red💙Violets are blue🌞Rain is ending🥵and the cool weather is, too.
Last rain chance for a while: showers & storms this afternoon

1 week ago | ksat.com | Justin Horne

Weather Scattered rain is expected by the late afternoon into the evening Justin Horne, KSAT Weather Authority Meteorologist Published: May 8, 2025 at 4:41 AM Tags: Forecast FORECAST HIGHLIGHTS SCATTERED RAIN: Arrives by afternoon, could affect evening commute DRY WEATHER TAKES OVER: A much drier pattern takes hold this weekend COOL MORNINGS: Mornings will dip into the 50s Saturday/Sunday FORECAST An area of low pressure combined with a cool front will give us a decent chance for showers and...
Last rain chance for a while: showers & storms this afternoon

1 week ago | tspantx.com | Justin Horne

SCATTERED RAIN: Arrives by afternoon, could affect evening commuteDRY WEATHER TAKES OVER: A much drier pattern takes hold this weekendCOOL MORNINGS: Mornings will dip into the 50s Saturday/SundayAn area of low pressure combined with a cool front will give us a decent chance for showers and even a few storms this afternoon and this evening. This may affect after school practices and the evening commute.