National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce
Current conditions at

McAllen, Miller International Airport (KMFE)

Lat: 26.18°NLon: 98.24°WElev: 105ft.

Fair

81°F

27°C

Humidity 82%
Wind Speed SE 5 mph
Barometer 29.97 in (1014.4 mb)
Dewpoint 75°F (24°C)
Visibility 10.00 mi
Heat Index87°F (31°C)
Last update 2 Sep 2:53 am CDT
Extended Forecast for

San Juan TX

  • Overnight

    Overnight: A slight chance of showers and thunderstorms between 3am and 4am, then a slight chance of showers after 4am. Mostly clear, with a low around 78. Calm wind. Chance of precipitation is 20%.

    Low: 78 °F

    Slight Chance
    T-storms

  • Tuesday

    Tuesday: Showers and thunderstorms, mainly before 4pm. High near 96. Calm wind becoming north 5 to 7 mph in the afternoon. Chance of precipitation is 80%.

    High: 96 °F

    Slight Chance
    T-storms then
    T-storms

  • Tuesday Night

    Tuesday Night: A 30 percent chance of showers and thunderstorms, mainly before 7pm. Partly cloudy, with a low around 76. Northeast wind 5 to 7 mph becoming calm in the evening.

    Low: 76 °F

    Chance
    T-storms then
    Partly Cloudy

  • Wednesday

    Wednesday: Sunny, with a high near 97. Calm wind becoming north northeast 5 to 8 mph in the morning.

    High: 97 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 75. East wind 5 to 9 mph becoming light and variable after midnight.

    Low: 75 °F

    Mostly Clear

  • Thursday

    Thursday: Sunny and hot, with a high near 100. Calm wind becoming east 5 to 8 mph in the afternoon.

    High: 100 °F

    Hot

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 75. Southeast wind 6 to 11 mph, with gusts as high as 20 mph.

    Low: 75 °F

    Mostly Clear

  • Friday

    Friday: Mostly sunny, with a high near 98. Light southeast wind increasing to 5 to 10 mph in the morning.

    High: 98 °F

    Mostly Sunny

  • Friday Night

    Friday Night: Partly cloudy, with a low around 78. Southeast wind 6 to 13 mph, with gusts as high as 21 mph.

    Low: 78 °F

    Partly Cloudy

Detailed Forecast

Overnight
A slight chance of showers and thunderstorms between 3am and 4am, then a slight chance of showers after 4am. Mostly clear, with a low around 78. Calm wind. Chance of precipitation is 20%.
Tuesday
Showers and thunderstorms, mainly before 4pm. High near 96. Calm wind becoming north 5 to 7 mph in the afternoon. Chance of precipitation is 80%.
Tuesday Night
A 30 percent chance of showers and thunderstorms, mainly before 7pm. Partly cloudy, with a low around 76. Northeast wind 5 to 7 mph becoming calm in the evening.
Wednesday
Sunny, with a high near 97. Calm wind becoming north northeast 5 to 8 mph in the morning.
Wednesday Night
Mostly clear, with a low around 75. East wind 5 to 9 mph becoming light and variable after midnight.
Thursday
Sunny and hot, with a high near 100. Calm wind becoming east 5 to 8 mph in the afternoon.
Thursday Night
Mostly clear, with a low around 75. Southeast wind 6 to 11 mph, with gusts as high as 20 mph.
Friday
Mostly sunny, with a high near 98. Light southeast wind increasing to 5 to 10 mph in the morning.
Friday Night
Partly cloudy, with a low around 78. Southeast wind 6 to 13 mph, with gusts as high as 21 mph.
Saturday
A slight chance of showers, then a chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 97. Southeast wind 6 to 10 mph. Chance of precipitation is 30%.
Saturday Night
A 30 percent chance of showers and thunderstorms. Partly cloudy, with a low around 78. East southeast wind 6 to 11 mph, with gusts as high as 21 mph.
Sunday
A 50 percent chance of showers and thunderstorms. Mostly sunny, with a high near 96.
Sunday Night
A 30 percent chance of showers and thunderstorms. Partly cloudy, with a low around 78.
Monday
A 50 percent chance of showers and thunderstorms. Mostly sunny, with a high near 95.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
San Juan TX
 26.18°N 98.16°W
Last Update:
2:47 am CDT Sep 2, 2025
Forecast Valid:
2am CDT Sep 2, 2025-6pm CDT Sep 8, 2025
 
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Additional Resources

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Hourly Weather Forecast

National Digital Forecast Database

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation