Brownsville Weather Radar
Brownsville Live Weather
Brownsville Live Weather Radar
Brownsville Hourly Weather Forecast
Brownsville 7-Day Weather Forecast
Brownsville Weather Overview
Brownsville sits at the southern tip of Texas along the Rio Grande, where the river meets the Gulf of Mexico. The city's humid subtropical climate — bordering tropical — means warm, moist Gulf air year-round, hot summers, and mild winters. The Brownsville weather radar, served by NWS Brownsville/Rio Grande Valley (WFO BRO), covers one of the most hurricane-vulnerable corridors in the country.
Hurricane season defines the local weather calendar. September is peak month for tropical activity, and Brownsville has seen major landfalls: Hurricane Beulah (1967) struck as a Category 3 and spawned over 115 tornadoes across Texas; Hurricane Dolly (2008) came ashore near South Padre Island as a Category 2, dropping 8–12 inches of rain across the Valley and causing roughly $1.5 billion in damage. The brownsville weather radar lets residents monitor tropical bands and rainfall intensity in real time as systems approach from the Gulf. Flash flooding is a persistent secondary threat — flat terrain and clay soils limit drainage, so moderate rain can swamp streets fast.
Brownsville averages 26.78 inches of annual rainfall (NOAA 1991–2020), with dry conditions the norm outside tropical season. Record highs have reached 106°F, and extended heat waves are common. Winters are generally warm, but rare Arctic outbreaks — like February 2021 — can push temperatures near 20°F. Check the Brownsville TX weather radar before driving US-77 or US-83, heading to Boca Chica, or visiting the Port of Brownsville to stay ahead of the Valley's fast-moving weather.
Brownsville Weather Risks & Safety
Hurricane & Tropical Storm Risk
Brownsville sits in the path of Atlantic and Gulf tropical systems. Hurricane season runs June 1 through November 30, peaking in August and September when warm sea surface temperatures fuel rapid intensification. On the radar, you can track the eye wall, rain bands, and embedded tornadoes as a storm approaches. If you live in Brownsville, keep your evacuation plan current and check the radar frequently once a tropical advisory is issued.
Flooding & Flash Flood Risk
Flash flooding is Brownsville's most persistent weather hazard. Slow-moving thunderstorms or tropical moisture can dump enough rain to overwhelm drainage systems within hours — especially in paved urban areas where water has nowhere to go. Check the radar to see where the heaviest rain is falling and which areas to avoid. The standing rule: turn around, don't drown. Never drive through flooded roads, even if they look shallow.
Extreme Heat Risk
Summers in Brownsville get dangerously hot — heat indices regularly push past 100°F, and heat waves can last for weeks. When the radar shows clear skies with no storm activity for days, that usually means the heat is building. Outdoor workers, elderly residents, and anyone without reliable AC are most at risk. Stay hydrated, avoid outdoor activity during peak afternoon hours, and check on neighbors who might be struggling.
Severe Thunderstorm Risk
Severe thunderstorms roll through Brownsville regularly, especially spring through early fall. Expect damaging winds above 58 mph, large hail, and dangerous lightning. The radar shows you each storm cell's position, movement, and intensity — so you can tell if one is headed your way. When a thunderstorm warning drops for Brownsville, get indoors and away from windows until it passes.
How to Use Brownsville Weather Radar
Check Current Conditions
Look at the weather status bar at the top of the Brownsville radar page — it shows current temperature, humidity, wind speed, and sky conditions. During June through November, note any tropical advisories issued by the NWS Brownsville office.
Watch the Radar Map
The radar map shows precipitation moving across the Rio Grande Valley. Toggle between precipitation and cloud layers and hit play on the animation — you can see whether storm bands are tracking inland from the Gulf toward Brownsville or moving along the coast.
Check the Forecast
Scroll to the hourly and 7-day forecast. During hurricane season, look for tropical moisture and heavy rain windows. Outside of storm season, watch for dry-hot stretches — Brownsville summers regularly push past 95°F for days at a time.
Plan Around the Weather
Heading to Boca Chica or the Port of Brownsville? Check the radar first. Flash floods can close low-lying roads on US-77 and US-83 quickly after heavy rain. When a tropical advisory is active, check back every few hours as conditions can shift fast.
Who Benefits from Brownsville Weather Radar
Commuters & Drivers
Check radar before driving US-77 or US-83 — spot flash flood risks and storm cells crossing the Valley.
Outdoor Enthusiasts
Visitors to Gladys Porter Zoo or Resaca de la Palma State Park — see storms 30–60 minutes before they arrive.
Event Planners & Families
Planning events near South Padre Island or downtown Brownsville? Radar shows exactly when Gulf squalls move in.
Outdoor Workers
Port of Brownsville crews and Boca Chica/SpaceX workers — track incoming tropical bands before outdoor shifts.