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

Harlingen, Rio Grande Valley International Airport (KHRL)

Lat: 26.23°NLon: 97.66°WElev: 33ft.

Mostly Cloudy

82°F

28°C

Humidity 82%
Wind Speed SE 14 mph
Barometer 29.82 in (1009.5 mb)
Dewpoint 76°F (24°C)
Visibility 9.00 mi
Heat Index89°F (32°C)
Last update 17 May 10:52 pm CDT
Extended Forecast for

Primera TX

  • Overnight

    Overnight: A 30 percent chance of showers and thunderstorms, mainly between 2am and 3am. Mostly cloudy, with a low around 80. Breezy, with a south southeast wind 16 to 20 mph, with gusts as high as 36 mph.

    Low: 80 °F

    Chance
    Showers and
    Breezy

  • Monday

    Monday: A 20 percent chance of showers before 11am. Partly sunny, with a high near 96. Heat index values as high as 107. Breezy, with a south southeast wind 17 to 21 mph, with gusts as high as 32 mph.

    High: 96 °F

    Breezy.
    Slight Chance
    Showers then
    Partly Sunny

  • Monday Night

    Monday Night: A slight chance of showers and thunderstorms between 9pm and 4am, then a slight chance of showers after 4am. Mostly cloudy, with a low around 80. Breezy, with a southeast wind 13 to 18 mph, with gusts as high as 32 mph. Chance of precipitation is 20%.

    Low: 80 °F

    Slight Chance
    T-storms and
    Breezy

  • Tuesday

    Tuesday: A 20 percent chance of showers before 1pm. Partly sunny, with a high near 95. Heat index values as high as 107. Breezy, with a southeast wind 14 to 18 mph, with gusts as high as 28 mph.

    High: 95 °F

    Slight Chance
    Showers and
    Breezy

  • Tuesday Night

    Tuesday Night: A 40 percent chance of showers after 1am. Partly cloudy during the early evening, then becoming cloudy, with a low around 78. Southeast wind 9 to 16 mph, with gusts as high as 25 mph.

    Low: 78 °F

    Mostly Cloudy
    then Chance
    Showers

  • Wednesday

    Wednesday: Partly sunny, with a high near 92. Southeast wind 10 to 14 mph, with gusts as high as 23 mph.

    High: 92 °F

    Partly Sunny

  • Wednesday Night

    Wednesday Night: Mostly cloudy, with a low around 77. East southeast wind 7 to 14 mph, with gusts as high as 20 mph.

    Low: 77 °F

    Mostly Cloudy

  • Thursday

    Thursday: A slight chance of showers and thunderstorms, then a chance of showers after 1pm. Mostly cloudy, with a high near 90. Southeast wind 6 to 13 mph, with gusts as high as 22 mph. Chance of precipitation is 40%.

    High: 90 °F

    Slight Chance
    T-storms then
    Chance
    Showers

  • Thursday Night

    Thursday Night: A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 1am. Mostly cloudy, with a low around 75. Southeast wind 6 to 13 mph, with gusts as high as 21 mph. Chance of precipitation is 60%.

    Low: 75 °F

    Showers
    Likely

Detailed Forecast

Overnight
A 30 percent chance of showers and thunderstorms, mainly between 2am and 3am. Mostly cloudy, with a low around 80. Breezy, with a south southeast wind 16 to 20 mph, with gusts as high as 36 mph.
Monday
A 20 percent chance of showers before 11am. Partly sunny, with a high near 96. Heat index values as high as 107. Breezy, with a south southeast wind 17 to 21 mph, with gusts as high as 32 mph.
Monday Night
A slight chance of showers and thunderstorms between 9pm and 4am, then a slight chance of showers after 4am. Mostly cloudy, with a low around 80. Breezy, with a southeast wind 13 to 18 mph, with gusts as high as 32 mph. Chance of precipitation is 20%.
Tuesday
A 20 percent chance of showers before 1pm. Partly sunny, with a high near 95. Heat index values as high as 107. Breezy, with a southeast wind 14 to 18 mph, with gusts as high as 28 mph.
Tuesday Night
A 40 percent chance of showers after 1am. Partly cloudy during the early evening, then becoming cloudy, with a low around 78. Southeast wind 9 to 16 mph, with gusts as high as 25 mph.
Wednesday
Partly sunny, with a high near 92. Southeast wind 10 to 14 mph, with gusts as high as 23 mph.
Wednesday Night
Mostly cloudy, with a low around 77. East southeast wind 7 to 14 mph, with gusts as high as 20 mph.
Thursday
A slight chance of showers and thunderstorms, then a chance of showers after 1pm. Mostly cloudy, with a high near 90. Southeast wind 6 to 13 mph, with gusts as high as 22 mph. Chance of precipitation is 40%.
Thursday Night
A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 1am. Mostly cloudy, with a low around 75. Southeast wind 6 to 13 mph, with gusts as high as 21 mph. Chance of precipitation is 60%.
Friday
A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 1pm. Partly sunny, with a high near 89. Southeast wind 5 to 11 mph, with gusts as high as 21 mph. Chance of precipitation is 60%.
Friday Night
A 40 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 74. Southeast wind 6 to 9 mph.
Saturday
Showers and thunderstorms likely. Partly sunny, with a high near 88. Chance of precipitation is 60%.
Saturday Night
A 50 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 74.
Sunday
A 50 percent chance of showers and thunderstorms. Partly sunny, with a high near 88.
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ABOUT THIS FORECAST

 
Point Forecast:
Primera TX
 26.23°N 97.75°W
Last Update:
12:45 am CDT May 18, 2026
Forecast Valid:
12am CDT May 18, 2026-6pm CDT May 24, 2026
 
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Additional Resources

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Chance of Precipitation