McKinney, Texas Weather
Camellia Blooms Break Through. Day 50 of autumn. Read this microseason across nine climate regions →
McKinney weather forecast — hour by hour, 7-day outlook, NOAA radar
Conditions updated 1:53 PM CST · Open-Meteo
- TodayNov 10Clear15%0.02″77°60°—
- WednesdayNov 11Clear——80°58°+3°
- ThursdayNov 12Clear——74°54°-6°
- FridayNov 13Overcast——70°53°-4°
- SaturdayNov 14Light Drizzle——66°51°-4°
- SundayNov 15Drizzle29%0.16″56°45°-10°
- MondayNov 16Rain17%0.59″51°44°-5°
Air quality now AQI 61 · Moderate
AQI 61 (Moderate), driven by Ozone. AQI flat over the last 6 hours (within ±3 points). Ozone at AQI 37 now. With UV 3.1 peaking around 1 PM under clear skies, surface ozone likely climbs to AQI 15.
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 now. With UV 3.1 peaking around 1 PM under clear skies, surface ozone likely climbs to AQI 15.
- Present
- AQI 37
- UV peak
- 3.1 at 1 PM
- Sky at peak
- clear
- Projected peak
- AQI 15
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).
When the wind is in the west, the weather is at its best.
- Moonrise
- 8:25 AM
- Moonset
- —
- In sign
- ♐︎ Sagittarius
Camellia Blooms Break Through
Read this microseason across nine climate regions →
All 72 microseasons on the year wheel →
McKinney at a glance
- Today vs. normal: Today averages 69°F (high 77°F, low 60°F), 11°F above the 58°F normal for Nov 10
- Last frost: March 17 (1991–2020 median, NOAA station 7 km away)
- Microseason: Nov 6–10
- Planting calendar: November — harvest tomatoes, peppers, beans, summer squash, winter squash, fall brassicas, carrots
16-Day Forecast — McKinney
- Tue76°60°17%
- Wed80°58°2%
- Thu74°49°0%
- Fri70°53°0%
- Sat66°51°8%
- Sun56°45°43%
- Mon51°44°36%
- Tue60°42°3%
- Wed59°53°17%
- Thu68°57°21%
- Fri70°62°31%
- Sat67°39°41%
- Sun48°36°32%
- Mon43°31°13%
- Tue49°30°20%
- Wed63°41°23%
Forecast data from Open-Meteo (CC BY 4.0).
Live wind & temperature near McKinney
Interactive wind and temperature map centered on McKinney — it loads in your browser. Open the full weather map.
Right now in the garden
Fall planting + final harvests
As of November 10, the season's first frost (typically November 15) is approaching. Pick what frost-tender plants still carry before the next cold front. This city's planting calendar for November: harvest tomatoes, peppers, beans, summer squash, winter squash, fall brassicas, and carrots.
Sun & seasons in McKinney
McKinney sits in Collin County, where the year’s longest day runs 14h 21m of daylight and its shortest just 9h 57m — a swing of +4h 24m between the June and December solstices. Clocks spring forward on Sunday, March 8, 2026 and fall back on Sunday, November 1, 2026.
Houston, the state’s largest city, lies about 248 miles to the SSE. The nearest town McKinney tracks is Frisco, roughly 9 miles to the WSW.
Air quality in McKinney
Air quality in McKinney’s county has trended dirtier since 2020; its cleanest year on record was 2020 (median AQI 37). See the full air-quality history for McKinney.
Planting calendar
| Month | Plant | Harvest |
|---|---|---|
| February | lettuce, peas, spinach, radishes | — |
| March | lettuce, peas, spinach, radishes | radishes |
| April | tomatoes, peppers, beans, squash | lettuce, peas, spinach, radishes |
| May | tomatoes, squash | lettuce, peas, spinach, radishes, beans, summer squash |
| June | squash | tomatoes, peppers, beans, summer squash, garlic |
| July | tomatoes, peppers, beans, squash | tomatoes, peppers, summer squash, winter squash |
| August | tomatoes, peppers, beans, squash, fall brassicas, carrots | summer squash, winter squash |
| September | — | beans, summer squash, winter squash |
| October | garlic (overwinter) | tomatoes, peppers, beans, summer squash, winter squash |
| November | — | tomatoes, peppers, beans, summer squash, winter squash, fall brassicas, carrots |
| December | — | fall brassicas, carrots |
A year in weather
McKinney peaks at about 85°F in July and bottoms near 46°F in January; October brings the heaviest rain (5.3 inches) and July the least (2.2 inches).
| Month | Mean temp | Precip | Rainy days |
|---|---|---|---|
| January | 46° | 2.8″ | 5 |
| February | 50° | 3.4″ | 5 |
| March | 58° | 3.6″ | 6 |
| April | 65° | 3.5″ | 5 |
| May | 73° | 5.2″ | 7 |
| June | 81° | 3.8″ | 5 |
| July | 85° | 2.2″ | 4 |
| August | 85° | 2.5″ | 4 |
| September | 77° | 3.3″ | 4 |
| October | 67° | 5.3″ | 6 |
| November | 56° | 3.0″ | 4 |
| December | 48° | 3.4″ | 4 |
Regional context
Similar climates Fairview, TX, New Hope, TX, Allen, TX
McKinney swings from 46°F in January to 85°F in July (39°F) per NOAA NCEI 1991-2020 normals; precipitation in McKinney runs about 41.9 inches on roughly 57 measurable days.
Rainfall in McKinney splits evenly between the seasons: October tops out at 5.3 inches over 5.6 rainy days, and July logs 2.2 inches across 3.5 — neither half of McKinney's year dominates. It is a balanced pattern McKinney shares with places like Fairview, TX, New Hope, TX and Allen, TX.
Once McKinney passes March 17, freezes fade and McKinney's beds take lettuce, chard, arugula, and mustard greens. Tomatoes and peppers do best set out two weeks later in McKinney, once nights clear the mid-40s°F. By November 15, frost is back in McKinney — protect or harvest anything tender. That date is a median: McKinney freezes sooner in half of years.
Similar climates: Fairview, TX, New Hope, TX, Allen, TX, Lowry Crossing, TX, Prosper, TX.
Frequently asked
- When does it freeze in McKinney?
- McKinney's last spring frost lands near March 17, and in McKinney the first fall frost follows around November 15.
- What is the rainy season in McKinney?
- McKinney sees its heaviest rain in October (around 5.3 inches), part of roughly 42 inches a year.
- What is the warmest month in McKinney?
- The warmest stretch in McKinney comes in July, around 85°F on average.
- What is the coldest month in McKinney?
- On average January is the chilliest month in McKinney, about 46°F.
- When can I start a vegetable garden in McKinney?
- McKinney's last frost (March 17) cues hardy greens; in McKinney, hold heat-lovers two weeks past.
- How many rainy days does McKinney get?
- Expect roughly 57 wet days a year in McKinney.
- What hardiness zone is McKinney?
- McKinney sits in the USDA zone set by January lows near 46°F; the USDA ZIP tool gives the band.
- What is the 10-day forecast for McKinney?
- McKinney's extended outlook — daily high and low temperatures and precipitation chances for each upcoming day — is in the daily forecast above.
- Will it rain this week in McKinney?
- See this week's day-by-day rain chances for McKinney in the daily forecast above, and the next 24 hours in the hourly chart.
- What is the weather like right now in McKinney?
- Current conditions for McKinney and the next 24 hours — temperature, precipitation chance, and wind by the hour — are in the hourly forecast chart above.
- How often is the McKinney forecast updated?
- The McKinney forecast on this page is built from Open-Meteo weather-model data and refreshes regularly through the day.
- When are sunrise and sunset in McKinney?
- Today's sunrise and sunset times for McKinney are in the Almanac section above, along with civil dawn, civil dusk, and day length. Day length is longest near the summer solstice and shortest near the winter solstice.
- How accurate is the weather forecast for McKinney?
- The next few days in McKinney's forecast are the most reliable; accuracy declines beyond about a week as weather-model uncertainty grows.
McKinney sits at 33.2°N; its climate zone is humid subtropical (Köppen approximation).
ZIP codes in McKinney
- 75069
- 75070
- 75071
- 75072