McAllen, Texas Weather
Fireflies pulse through the magnolias. Day 78 of spring. Read this microseason across nine climate regions →
McAllen weather forecast — hour by hour, 7-day outlook, NOAA radar
- TodayJun 4Overcast19%—94°77°—
- FridayJun 5Overcast20%—94°78°0°
- SaturdayJun 6Overcast18%—94°78°0°
- SundayJun 7Overcast——97°79°+3°
- MondayJun 8Light Drizzle14%—98°79°+1°
- TuesdayJun 9Overcast——99°77°+1°
- WednesdayJun 10Mostly Clear13%—100°77°+1°
AQI 29 (Good), driven by PM2.5. AQI flat over the last 6 hours (within ±4 points). PM2.5 at 5.2 µg/m³ (AQI 29) with a 0.68 fine-to-coarse ratio and 5 mph wind — combustion smoke trapped in calm air, not road dust.
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 at 5.2 µg/m³ (AQI 29) with a 0.68 fine-to-coarse ratio and 5 mph wind — combustion smoke trapped in calm air, not road dust.
- PM2.5/PM10
- 0.68
- Wind
- light
- Recent rain
- 0h in last 6h
- Pattern
- stagnant smoke
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
- 5:03 AM
- Moonset
- 4:09 PM
- In sign
- ♒︎ Aquarius
Fireflies pulse through the magnolias
McAllen at a glance
- Today vs. normal: 7°F below the seasonal normal for this latitude
- Last frost: January 23 (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 — McAllen
SPC has placed McAllen 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.
Planting calendar
| Month | Plant | Harvest |
|---|---|---|
| January | — | — |
| February | lettuce, peas, spinach, radishes | — |
| March | lettuce, peas, spinach, radishes, tomatoes, peppers, beans, squash | — |
| April | tomatoes, peppers, beans, squash | — |
| May | tomatoes, peppers, beans, squash | lettuce, peas, radishes |
| June | — | lettuce, peas, radishes |
| July | — | tomatoes, beans, summer squash |
| August | — | tomatoes, beans, summer squash |
| September | — | tomatoes, beans, summer squash |
| October | fall brassicas, garlic (overwinter), carrots | winter squash, tomatoes (last) |
| November | fall brassicas, garlic (overwinter), carrots | — |
| December | — | — |
A year in weather
August brings McAllen's peak heat with mean temperatures around 88°F, while January delivers the year's coolest weather at about 60°F. September stands as the wettest month with 3.8 inches of rainfall, contrasting sharply with December's meager 0.6 inches.
| Month | Mean temp | Precip | Rainy days |
|---|---|---|---|
| January | 60° | 0.7″ | 2 |
| February | 65° | 0.6″ | 1 |
| March | 70° | 1.0″ | 2 |
| April | 76° | 1.4″ | 2 |
| May | 82° | 1.4″ | 2 |
| June | 86° | 3.0″ | 3 |
| July | 87° | 1.6″ | 2 |
| August | 88° | 1.4″ | 3 |
| September | 84° | 3.8″ | 5 |
| October | 78° | 2.0″ | 3 |
| November | 68° | 1.1″ | 2 |
| December | 62° | 0.6″ | 2 |
Regional context
McAllen belongs to the humid subtropical climate region, sharing temperature ranges, seasonal patterns, and growing conditions with other nearby cities in this climate zone.
Similar climates: Houston, TX, Dallas, TX, San Antonio, TX, Austin, TX, Fort Worth, TX.
Naturalist notes
Late May brings the arrival of scissor-tailed flycatchers, their distinctive forked tails marking the transition into summer breeding season.
Mexican buckeye trees bloom in March, their fragrant pink clusters appearing before the leaves unfurl.
Frequently asked
- When does it freeze in McAllen?
- Spring's final frost typically occurs around mid-February in McAllen, while the first fall frost returns around mid-December.
- What is the rainy season in McAllen?
- September receives the most rainfall with approximately 3.8 inches on average, contributing to the city's annual total of roughly 19 inches.
- What is the warmest month in McAllen?
- August typically records the highest temperatures, with averages around 88°F.
- What is the coldest month in McAllen?
- January brings the coolest temperatures, averaging about 60°F.
- When can I start a vegetable garden in McAllen?
- Cool-season crops like peas and lettuce can be planted around the last spring frost in mid-February, while warm-season crops such as tomatoes and peppers should wait 1–2 weeks after.
- How many rainy days does McAllen get?
- McAllen experiences about 29 rainy days per year on average.
- What hardiness zone is McAllen?
- McAllen's USDA hardiness zone depends on its lowest average winter temperature; use the USDA's online lookup tool with the city ZIP code for the current zone designation.
Climate
McAllen, Texas experiences a humid subtropical climate. Winter temperatures in January hover near 60°F, while July brings averages of 87°F, creating a 27°F seasonal swing.
Annual precipitation totals about 19 inches, distributed across roughly 29 rainy days throughout the year.
Geography shapes McAllen's weather patterns through its latitude of 26.2°N, proximity to large water bodies, and elevation. These factors determine what plants thrive here, frost timing, and daily weather conditions.