Port Isabel, Texas Weather
Fireflies pulse through the magnolias. Day 78 of spring. Read this microseason across nine climate regions →
Port Isabel weather forecast — hour by hour, 7-day outlook, NOAA radar
- TodayJun 4Thunderstorm22%—89°77°—
- FridayJun 5Overcast14%—88°77°-1°
- SaturdayJun 6Showers10%0.18″89°79°+1°
- SundayJun 7Light Drizzle17%—90°81°+1°
- MondayJun 8Light Drizzle17%—89°80°-1°
- TuesdayJun 9Partly Cloudy——88°80°-1°
- WednesdayJun 10Clear——88°80°0°
PM2.5/PM10 ratio 0.60 with 10 mph wind — characteristic of long-range haze transport rather than a local source. AQI flat over the last 6 hours (within ±3 points).
OK No precautions needed for the general population; unusually sensitive individuals may consider limiting prolonged outdoor exertion.
What's driving it
PM × Wind × Precip
PM2.5/PM10 ratio 0.60 with 10 mph wind — characteristic of long-range haze transport rather than a local source.
- PM2.5/PM10
- 0.60
- Wind
- breezy
- Recent rain
- 0h in last 6h
- Pattern
- transport
Trends
Seven days of AQI and PM2.5.
Hourly air-quality data from the Copernicus Atmosphere Monitoring Service, charted across the past and next several days. Dashed lines mark the AQI breakpoints at 50 (Good → Moderate) and 100 (Moderate → Unhealthy for Sensitive Groups).
The higher the clouds, the finer the weather.
- Moonrise
- 4:59 AM
- Moonset
- 4:05 PM
- In sign
- ♒︎ Aquarius
Fireflies pulse through the magnolias
Port Isabel at a glance
- Today vs. normal: 7°F below the seasonal normal for this latitude
- Last frost: January 22 (climatological average for this latitude)
- Microseason: Jun 1–5
- Planting window: Harvest spring lettuce before it bolts. Sow heat-tolerant greens.
Right now in the garden
Peak growing season
As of June 5, the growing season is at its peak — frost is months away. Continue succession-planting beans and summer squash. Start fall brassicas (broccoli, cabbage, kale) from seed indoors for transplanting in late summer.
SPC Convective Outlook
Storm Prediction Center — Port Isabel
SPC has placed Port Isabel in the General Thunderstorms category for severe thunderstorms today.
- TODAYTSTMGeneral Thunderstorms
- TOMORROWTSTMGeneral Thunderstorms
- DAY 3TSTMGeneral Thunderstorms
Thunderstorms possible. Not severe, but capable of producing lightning and brief heavy rain.
Source: NOAA / NWS Storm Prediction Center categorical convective outlook. Outlooks are re-issued multiple times per day; this page reflects the most recent SPC polygons covering the city’s coordinates.