Brownsville, TX Weather
Brownsville hourly forecast: next 24 hours
Today's high of 100°F (38°C) is about 8°F (4°C) above the typical July high of 92°F (33°C).
Current conditions in detail
Brownsville weather tomorrow (Saturday, July 18)
Tomorrow in Brownsville looks sunny, with a high of 94° and an overnight low of 78°. Rain is unlikely (8% chance). Winds top out near 19 mph, and the UV index reaches 10 (very high).
Brownsville 14-day forecast
About the weather in Brownsville
Brownsville has a humid subtropical climate, marked by hot, humid summers and generally mild winters. Average daytime highs range from about 71°F (21°C) in January to around 93°F (34°C) in August, and the city records roughly 115 days of measurable precipitation a year.
Brownsville weather: quick facts
- Hottest month: August - highs near 93°F (34°C)
- Coldest month: January - highs near 71°F (21°C)
- Record high: 105°F (40°C) · Record low: 24°F (-5°C) (2015–2024)
- Wettest month: September (16 rainy days) · Sunniest: August (12.2 h sun/day)
- Climate type: humid subtropical - hot, humid summers and generally mild winters
Temperatures through the year
The warmest stretch of the year centers on August. Highs average 93°F (34°C) and overnight lows stay near 80°F (26°C). The coolest month is January, with typical highs of 71°F (21°C) and lows around 56°F (13°C). Based on 2015–2024 weather data, temperatures have reached as high as 105°F (40°C) and dropped as low as 24°F (-5°C).
Rain, sun and snow
September is usually the wettest month. It brings about 5.4 inches (136 mm) of rain over 16 days, while February is the driest. August brings the most sunshine, averaging 12.2 hours of sun a day.
Season by season
Spring (March through May)
Spring in Brownsville is hot, with daytime highs averaging 83°F (29°C) and nights around 70°F (21°C); expect showers on roughly 26 days across the season. With the humidity factored in, afternoons often feel hotter than the thermometer reads - run the numbers through the humidity and dew point converter to see why.
Summer (June through August)
Summer in Brownsville turns very hot, with daytime highs averaging 92°F (33°C) and nights around 79°F (26°C); expect showers on roughly 31 days across the season.
Fall (September through November)
Fall in Brownsville brings hot afternoons, with daytime highs averaging 84°F (29°C) and nights around 71°F (21°C); expect showers on roughly 37 days across the season.
Winter (December through February)
Winter in Brownsville brings comfortable warmth, with daytime highs averaging 73°F (23°C) and nights around 58°F (14°C); expect showers on roughly 22 days across the season.
Average temperatures in Brownsville by month
| Month | High | Low | Rain days | Precipitation | Sunshine | Humidity |
|---|---|---|---|---|---|---|
| January | 71° | 56° | 8 | 1.8 in | 7.5 h/day | 73% |
| February | 74° | 58° | 6 | 1.2 in | 8.1 h/day | 75% |
| March | 79° | 65° | 8 | 2.6 in | 8.3 h/day | 76% |
| April | 83° | 70° | 8 | 2.8 in | 9.8 h/day | 75% |
| May | 88° | 75° | 10 | 3.0 in | 11.4 h/day | 77% |
| June | 90° | 78° | 12 | 3.4 in | 12.0 h/day | 76% |
| July | 92° | 79° | 9 | 2.9 in | 12.0 h/day | 73% |
| August | 93° | 80° | 10 | 2.3 in | 12.2 h/day | 72% |
| September | 89° | 77° | 16 | 5.4 in | 10.4 h/day | 76% |
| October | 85° | 71° | 11 | 2.9 in | 9.7 h/day | 73% |
| November | 78° | 64° | 10 | 2.6 in | 7.9 h/day | 76% |
| December | 74° | 60° | 7 | 1.4 in | 7.4 h/day | 75% |