HARLINGEN, TX 78553 Weather Forecast & Current Conditions

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78553 WEATHER WARNINGS (SEVERE T-STORM & TORNADO)

CURRENT WEATHER
HARLINGEN, TX Current Weather
9:52 PM CDT MAY 17, 2026
Overcast 82°F
Feels Like:	89°F
Dewpoint:	75°F
Rel. Hum.:	79%
Visibility:	9 miles
Wind:	SSE at 15 mph, gusts to 23
Pressure:	29.81 inches
Last 72 hours
Local Area Snow Depth
Texas Current Weather
Texas MOS Forecast Weather

Regional Weather Maps

(Automated weather data from NWS/FAA)

78553 WEATHER FORECAST
10-Day model forecast maps 2025 Hurricanes	HARLINGEN, TX 78553 Weather Forecast	Snowfall Forecast pages Snow Depth pages

OVERNIGHT
Mostly cloudy. Near steady temperature in the lower 80s. Southeast winds 15 to 20 mph with gusts up to 35 mph.

MONDAY
Partly sunny. Humid with highs in the mid 90s. Southeast winds 15 to 20 mph with gusts up to 30 mph. Heat index values up to 110 in the afternoon.

MONDAY NIGHT
Mostly cloudy. Humid with lows in the lower 80s. Southeast winds 15 to 20 mph with gusts up to 30 mph. Heat index values up to 105 early in the evening.

TUESDAY
Partly sunny. A chance of showers in the afternoon. Humid with highs in the mid 90s. Southeast winds 15 to 20 mph with gusts up to 30 mph. Chance of rain 30 percent. Heat index values up to 108.

TUESDAY NIGHT
Mostly cloudy. A chance of showers after midnight. Humid with lows around 80. Southeast winds 10 to 15 mph with gusts up to 25 mph. Chance of rain 40 percent.

WEDNESDAY
Partly sunny. Highs in the lower 90s.

WEDNESDAY NIGHT
Mostly cloudy. Lows in the upper 70s.

THURSDAY
Mostly cloudy in the morning, then partly sunny with a chance of showers in the afternoon. Highs around 90. Chance of rain 50 percent.

THURSDAY NIGHT
Mostly cloudy. A chance of showers. Lows in the mid 70s. Chance of rain 50 percent.

FRIDAY
Mostly cloudy in the morning, then becoming partly sunny. A chance of thunderstorms. A chance of showers in the morning, then showers likely in the afternoon. Highs around 90. Chance of rain 70 percent.

FRIDAY NIGHT
A chance of thunderstorms in the evening. Mostly cloudy with a chance of showers. Lows in the mid 70s. Chance of rain 50 percent.

SATURDAY
Mostly cloudy with a chance of showers in the morning, then partly sunny with showers likely with a chance of thunderstorms in the afternoon. Highs in the upper 80s. Chance of rain 60 percent.

SATURDAY NIGHT
Mostly cloudy with a chance of showers. Lows in the mid 70s. Chance of rain 50 percent.

78553 WEATHER SATELLITE LOOPS

Visible Weather Satellite
HARLINGEN, TX 78553

Infrared Weather Satellite
HARLINGEN, TX 78553

78553 WEATHER RADAR LOOP

NEXRAD Weather Radar
HARLINGEN, TX 78553

MOS COMPUTER WEATHER FORECAST

HARLINGEN, TX 3 hourly weather forecast

weather forecast created 8:00 AM EDT 5/17/2026

DAY/DATE &
WEATHER FORECAST SUMMARY

Sunday
17 MAY 2026

1 PM

90°

99°

Mostly Cloudy

2%

0% Thunder
( 11% severe)

SSE 24

58%

73°

High 93°

4 PM

92°

102°

Mostly Cloudy

SSE 24

56%

74°

Mostly Cloudy

Windy

7 PM

87°

97°

Mostly Cloudy

6%

0% Thunder
( 23% severe)

SSE 21

68%

75°

10 PM

83°

92°

Mostly Cloudy

SSE 23

82%

77°

Monday
18 MAY 2026

1 AM

82°

90°

Mostly Cloudy

4%

0% Thunder
( 10% severe)

SSE 21

85%

77°

Low 79°

4 AM

81°

87°

Mostly Cloudy

SSE 16

82%

75°

High 95°

7 AM

80°

85°

Mostly Cloudy

5%

0% Thunder
( 14% severe)

SE 17

85%

75°

Partly Cloudy

Windy

10 AM

87°

97°

Partly Cloudy

SSE 21

68%

75°

1 PM

93°

103°

Partly Cloudy

7%

0% Thunder
( 15% severe)

SSE 22

54%

74°

4 PM

94°

106°

Partly Cloudy

SSE 23

54%

75°

7 PM

87°

98°

Mostly Cloudy

14%
RAIN
<.01 in

0% Thunder
( 32% severe)

SE 22

70%

76°

10 PM

83°

92°

Mostly Cloudy

SE 23

82%

77°

Tuesday
19 MAY 2026

1 AM

82°

90°

Mostly Cloudy

3%

0% Thunder
( 17% severe)

SE 18

85%

77°

Low 79°

4 AM

81°

87°

Mostly Cloudy

SE 15

85%

76°

High 95°

7 AM

80°

85°

Mostly Cloudy

0%

0% Thunder
( 16% severe)

SE 14

88%

76°

Mostly Cloudy

Breezy

10 AM

87°

98°

Mostly Cloudy

SE 18

70%

76°

1 PM

92°

103°

Mostly Cloudy

2%

0% Thunder
( 20% severe)

SE 18

58%

75°

4 PM

93°

105°

Mostly Cloudy

SE 18

56%

75°

7 PM

87°

98°

Mostly Cloudy

ESE 18

70%

76°


HARLINGEN, TX extended weather forecast
Wednesday 20 MAY 2026	Thursday 21 MAY 2026	Friday 22 MAY 2026	Saturday 23 MAY 2026	Sunday 24 MAY 2026
Low 75°	Low 74°	Low 75°	Low 76°	Low 75°
High 93°	High 91°	High 90°	High 91°	High 92°

Mostly Cloudy 28% Rain	Mostly Cloudy 25% Rain	Mostly Cloudy 43% Rain	Overcast 36% Rain	Mostly Cloudy 31% Rain

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