MCALLEN, TX 78503 Weather Forecast & Current Conditions

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MCALLEN, TX
Current Weather

11:53 PM CDT AUG 9, 2026
Clear
82°F
Feels Like: 89°F
Dewpoint: 75°F
Rel. Hum.: 79%
Visibility: 10 miles
Wind: SSE at 10 mph
Pressure: 30.00 inches
Last 72 hours

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MCALLEN, TX 78503
Weather Forecast

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THIS AFTERNOON
Partly sunny with a chance of showers and thunderstorms. Near steady temperature in the mid 90s. East winds 5 to 10 mph with gusts up to 20 mph. Chance of rain 40 percent. Heat index values up to 108.
TONIGHT
Mostly clear. A slight chance of showers and thunderstorms in the evening. Humid with lows in the upper 70s. Southeast winds 10 to 15 mph with gusts up to 20 mph, diminishing to around 5 mph after midnight. Chance of rain 20 percent.
MONDAY
Sunny. Highs in the upper 90s. Southeast winds 10 to 15 mph with gusts up to 25 mph. Heat index values up to 108.
MONDAY NIGHT
Mostly clear. Humid with lows in the upper 70s. Southeast winds 10 to 15 mph with gusts up to 25 mph. Heat index values up to 105 early in the evening.
TUESDAY
Sunny, hot with highs around 100. Southeast winds 10 to 15 mph with gusts up to 25 mph. Heat index values up to 110.
TUESDAY NIGHT
Mostly clear. Lows in the upper 70s. Heat index values up to 105 early in the evening.
WEDNESDAY
Sunny, hot with highs around 100. Heat index values up to 110.
WEDNESDAY NIGHT
Mostly clear. Lows in the upper 70s.
THURSDAY
Sunny, hot with highs around 100. Heat index values up to 110.
THURSDAY NIGHT
Mostly clear. Lows around 80. Heat index values up to 105 early in the evening.
FRIDAY
Sunny. Highs in the upper 90s. Heat index values up to 110.
FRIDAY NIGHT
Mostly clear in the evening, then becoming partly cloudy. Lows around 80. Heat index values up to 105 early in the evening.
SATURDAY
Mostly sunny. Highs in the upper 90s. Heat index values up to 105.

Visible Weather Satellite
MCALLEN, TX 78503
Infrared Weather Satellite
MCALLEN, TX 78503
NEXRAD Weather Radar
MCALLEN, TX 78503

MCALLEN, TX 3 hourly weather forecast

weather forecast created  8:00 PM EDT  8/ 9/2026
Monday
10 AUG 2026
MCALLEN, TX 78503 weather forecast Day 1, 0 hours 1 AM 82° 89° Clear 1%

0% Thunder
( 2% severe)
SSE   9 82% 76°
Low 79° MCALLEN, TX 78503 weather forecast Day 1, 3 hours 4 AM 81° 88° Clear SSE   7 88% 77°
High 102° MCALLEN, TX 78503 weather forecast Day 1, 6 hours 7 AM 80° 85° Clear 2%

0% Thunder
( 3% severe)
SE   7 88% 76°

Partly Cloudy



MCALLEN, TX 78503 weather forecast Day 1, 9 hours 10 AM 88° 98° Clear SSE   12 66% 75°
MCALLEN, TX 78503 weather forecast Day 1, 12 hours 1 PM 97° 106° Partly Cloudy 4%

0% Thunder
( 17% severe)
SSE   14 45% 72°
MCALLEN, TX 78503 weather forecast Day 1, 15 hours 4 PM 99° 106° Partly Cloudy SE   17 39% 70°
MCALLEN, TX 78503 weather forecast Day 1, 18 hours 7 PM 94° 99° Partly Cloudy 1%

0% Thunder
( 3% severe)
SE   20 44% 69°
MCALLEN, TX 78503 weather forecast Day 1, 21 hours 10 PM 86° 94° Partly Cloudy SE   16 68% 74°
Tuesday
11 AUG 2026
MCALLEN, TX 78503 weather forecast Day 2, 0 hours 1 AM 83° 92° Clear 1%

0% Thunder
( 2% severe)
SSE   14 82% 77°
Low 81° MCALLEN, TX 78503 weather forecast Day 2, 3 hours 4 AM 82° 90° Partly Cloudy SSE   12 85% 77°
High 102° MCALLEN, TX 78503 weather forecast Day 2, 6 hours 7 AM 81° 88° Partly Cloudy 0%

0% Thunder
( 5% severe)
SE   10 88% 77°

Partly Cloudy



MCALLEN, TX 78503 weather forecast Day 2, 9 hours 10 AM 88° 99° Partly Cloudy SE   14 68% 76°
MCALLEN, TX 78503 weather forecast Day 2, 12 hours 1 PM 98° 107° Clear 0%

0% Thunder
( 23% severe)
SE   17 43% 72°
MCALLEN, TX 78503 weather forecast Day 2, 15 hours 4 PM 100° 108° Clear SE   18 38% 70°
MCALLEN, TX 78503 weather forecast Day 2, 18 hours 7 PM 94° 100° Clear 0%

0% Thunder
( 3% severe)
SE   20 46% 70°
MCALLEN, TX 78503 weather forecast Day 2, 21 hours 10 PM 86° 95° Clear SE   17 70% 75°

MCALLEN, TX extended weather forecast

BAD DAY
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Low 81° Low 80° Low 81° Low 78° Low 80°
High 101° High 102° High 102° High 100° High 101°
MCALLEN, TX 78503 weather forecast Day 3 MCALLEN, TX 78503 weather forecast Day 4 MCALLEN, TX 78503 weather forecast Day 5 MCALLEN, TX 78503 weather forecast Day 6 MCALLEN, TX 78503 weather forecast Day 7
Clear
17% Rain
Clear
13% Rain
Clear
17% Rain
Partly Cloudy
25% Rain
Partly Cloudy
23% Rain
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