Grand Prairie, Texas Weather
Fireflies pulse through the magnolias. Day 77 of spring. Read this microseason across nine climate regions →
Grand Prairie weather forecast — hour by hour, 7-day outlook, NOAA radar
- TodayJun 4Heavy Drizzle26%0.05″85°72°—
- FridayJun 5Overcast19%—86°73°+1°
- SaturdayJun 6Showers57%0.19″89°73°+3°
- SundayJun 7Showers56%—91°73°+2°
- MondayJun 8Overcast——96°74°+5°
- TuesdayJun 9Clear——95°76°-1°
- WednesdayJun 10Partly Cloudy——96°77°+1°
Ozone at AQI 37 — peak already passed at 1 PM under overcast skies. AQI down 7 over the last 6 hours (steady decline since this morning). Levels should ease through evening.
OK No precautions needed for the general population; unusually sensitive individuals may consider limiting prolonged outdoor exertion.
What's driving it
Ozone × UV × Sky
Ozone at AQI 37 — peak already passed at 1 PM under overcast skies. Levels should ease through evening.
- Present
- AQI 37
- UV peak
- 1.3 at earlier today
- Sky at peak
- overcast
- Projected peak
- AQI 37
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).
A summer fog for fair, a winter fog for rain.
- Moonrise
- 4:37 AM
- Moonset
- 2:52 PM
- In sign
- ♒︎ Aquarius
Fireflies pulse through the magnolias
Grand Prairie at a glance
- Today vs. normal: 3°F above the seasonal normal for this latitude
- Last frost: March 3 (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 4, 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 — Grand Prairie
SPC has placed Grand Prairie 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 | — | — |
| March | lettuce, peas, spinach, radishes | — |
| April | lettuce, peas, spinach, radishes, tomatoes, peppers, beans, squash | — |
| May | tomatoes, peppers, beans, squash | lettuce, peas, radishes |
| June | tomatoes, peppers, beans, squash | 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 Grand Prairie's warmest temperatures (~86°F mean) while January delivers the coldest (~47°F). October sees peak rainfall at 4.7 inches, contrasting with August's low of 1.7 inches.
| Month | Mean temp | Precip | Rainy days |
|---|---|---|---|
| January | 47° | 2.3″ | 4 |
| February | 51° | 2.6″ | 4 |
| March | 59° | 3.4″ | 5 |
| April | 66° | 3.1″ | 4 |
| May | 74° | 4.3″ | 6 |
| June | 82° | 3.5″ | 5 |
| July | 85° | 1.7″ | 3 |
| August | 86° | 1.7″ | 3 |
| September | 79° | 3.3″ | 4 |
| October | 68° | 4.7″ | 5 |
| November | 57° | 2.6″ | 4 |
| December | 49° | 2.8″ | 4 |
Regional context
Grand Prairie belongs to a humid subtropical climate region that shares similar temperature ranges, seasonal patterns, and growing conditions with nearby cities.
Similar climates: Houston, TX, Dallas, TX, San Antonio, TX, Austin, TX, Fort Worth, TX.
Naturalist notes
By late May, eastern bluebirds typically finish their second broods in Grand Prairie's open areas.
Native Texas bluebonnets complete their blooming cycle by early May, setting seed before summer heat arrives.
Frequently asked
- When does it freeze in Grand Prairie?
- Grand Prairie's last spring frost typically falls around mid-March, and the first fall frost arrives around mid-December.
- What is the rainy season in Grand Prairie?
- October is the wettest month with about 4.7 inches of rain on average; the city receives roughly 36 inches annually.
- What is the warmest month in Grand Prairie?
- August is typically warmest, averaging about 86°F.
- What is the coldest month in Grand Prairie?
- January is typically coldest, averaging about 47°F.
- When can I start a vegetable garden in Grand Prairie?
- Cool-season crops (peas, lettuce) can be sown around the last spring frost (mid-March); warm-season crops (tomatoes, peppers) wait until 1–2 weeks after.
- How many rainy days does Grand Prairie get?
- Grand Prairie averages about 49 rainy days per year.
- What hardiness zone is Grand Prairie?
- Grand Prairie's USDA hardiness zone is determined by its lowest average winter temperature; check the USDA's online lookup with the city ZIP for the current zone designation.
Climate
Grand Prairie, Texas sits in a humid subtropical climate zone. January temperatures hover near 47°F while July averages 85°F — a 38°F seasonal swing.
Throughout the year, Grand Prairie receives about 36 inches of precipitation spread over roughly 49 rainy days.
Location determines the yearly rhythm here: latitude (32.7°N), proximity to large water bodies, and elevation all shape what grows, when frost arrives, and daily weather patterns.