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Illinois Heights Colonia, Texas Weather Forecast
Illinois Heights Colonia, Texas Weather
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Weather Forecast for Illinois Heights Colonia, Texas : Cameron County
Issued: 7:45 am CST Dec 18, 2025 Latitude: 25.9373025 Longitude: -97.4152587 View on Google Maps

MouseOver for Detail Forecast
Today Tonight Friday Saturday Sunday Monday Tuesday Wednesday
Morning Fog on Today Morning Fog on Tonight Mostly Sunny on Friday Sunny on Saturday Sunny on Sunday Mostly Sunny on Monday Patchy Fog on Tuesday Patchy Fog on Wednesday
High: 83°F Low: 62°F High: 76°F High: 83°F High: 84°F High: 82°F High: 82°F High: 82°F
Low: 62°F Low: 67°F Low: 67°F Low: 66°F Low: 65°F  
Morning Fog Morning Fog Mostly Sunny Sunny Sunny Mostly Sunny Patchy Fog Patchy Fog
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Current Conditions at
BROWNSVILLE - (KBRO)
61°
Mostly Clear
Mist
as of 7:43 AM CST
Rel. Humidity: 87%
Dew Point: 57°F
Visibility: 1 1/2 Miles
Pressure: 29.84 in.
Flight Rule: IFR
Wind Data
3 MPH
140° Southeast
Cloud Level(s): Few at 900ft
Current Conditions at
PORT ISABEL - (KPIL)
61°
Mostly Clear
Mist
as of 7:36 AM CST
Rel. Humidity: 100%
Dew Point: 61°F
Visibility: 3 Miles
Pressure: 29.84 in.
Flight Rule: MVFR
Wind Data
3 MPH
150° Southeast
Cloud Level(s): Few at 600ft, Few at 1400ft
Current Conditions at
HARLINGEN - (KHRL)
57°
Clear
Fog
as of 7:41 AM CST
Rel. Humidity: 100%
Dew Point: 57°F
Visibility: 1/4 Miles
Pressure: 29.83 in.
Flight Rule: IFR
Wind Data
3 MPH
200° South
Cloud Level(s): Clear
Morning Fog on Today Today... Areas of fog before 9am. Otherwise, sunny, with a high near 83. Calm wind becoming south southwest 5 to 7 mph in the morning.

Morning Fog on Tonight Tonight... Patchy dense fog between midnight and 2am. Otherwise, increasing clouds, with a low around 62. Light and variable wind becoming north northeast 5 to 7 mph in the evening.

Mostly Sunny on Friday Friday... Mostly sunny, with a high near 76. North northeast wind around 7 mph.

Morning Fog on Friday Night Friday Night... Patchy fog between 11pm and 2am. Otherwise, mostly clear, with a low around 62. East northeast wind around 6 mph becoming light and variable.

Sunny on Saturday Saturday... Sunny, with a high near 83. South wind 6 to 14 mph, with gusts as high as 23 mph.

Mostly Clear on Saturday Night Saturday Night... Mostly clear, with a low around 67. South wind 7 to 10 mph, with gusts as high as 21 mph.

Sunny on Sunday Sunday... Sunny, with a high near 84. South wind 7 to 10 mph.

Cloudy on Sunday Night Sunday Night... Partly cloudy, with a low around 67. Southeast wind 3 to 7 mph.

Mostly Sunny on Monday Monday... Mostly sunny, with a high near 82. Light southeast wind becoming south southeast 5 to 9 mph in the morning.

Morning Fog on Monday Night Monday Night... Patchy fog after 2am. Otherwise, mostly clear, with a low around 66. Southeast wind 3 to 7 mph.

Patchy Fog on Tuesday Tuesday... Patchy fog. Otherwise, sunny, with a high near 82. Light southeast wind increasing to 5 to 10 mph in the morning.

Patchy Fog on Tuesday Night Tuesday Night... Patchy fog. Otherwise, mostly clear, with a low around 65.

Patchy Fog on Wednesday Wednesday... Patchy fog. Otherwise, mostly sunny, with a high near 82.

Sun Almanac for Illinois Heights Colonia, Texas
Sunrise: 07:11 AM
Sunset: 5:42 PM
Civil Sunrise:06:46 AM
Civil Sunset: 6:07 PM
Nautical Sunrise: 06:17 AM
Nautical Sunset: 6:36 PM
Astro Sunrise: 05:49 AM
Astro Sunset: 7:04 PM
Any use of the information on this page is at your own risk. This information should not be relied upon in life-threatening situations, potential financial loss situations or in lieu of any officially disseminated information. Visit the National Weather Service for official information.