🇺🇸 Weather in McKinney
Map Overlays:
Hourly Forecast for McKinney
06:00
23°
73%
07:00
23°
30%
08:00
24°
75%
09:00
24°
73%
10:00
25°
28%
11:00
26°
10%
12:00
26°
7%
13:00
27°
5%
14:00
29°
3%
15:00
29°
2%
16:00
30°
2%
17:00
30°
73%
18:00
29°
6%
19:00
27°
73%
20:00
26°
74%
21:00
24°
73%
22:00
23°
94%
23:00
22°
81%
00:00
21°
78%
01:00
21°
89%
02:00
21°
73%
03:00
21°
88%
04:00
21°
74%
05:00
21°
27%
14-Day Forecast for McKinney
2026-06-06
Moderate rain
31° /
21°
2026-06-07
Moderate rain
31° /
20°
2026-06-08
Patchy rain nearby
32° /
23°
2026-06-09
Sunny
33° /
23°
2026-06-10
Sunny
34° /
23°
2026-06-11
Sunny
34° /
23°
2026-06-12
Patchy rain nearby
33° /
21°
Additional Forecasts for McKinney
Air Quality
💨 US EPA Index 1 (Good)
CO (Carbon Monoxide) 120.0 μg/m³
O₃ (Ozone) 49.0 μg/m³
NO₂ (Nitrogen Dioxide) 3.5 μg/m³
SO₂ (Sulphur Dioxide) 0.4 μg/m³
PM2.5 (Fine particles) 1.0 μg/m³
PM10 (Coarse particles) 1.1 μg/m³
Historical Weather
Weather Forecasts for Other Cities in United States
Weather in McKinney — FAQ
Answers refreshed each request based on current conditions in McKinney.
What is the weather like right now in McKinney?
Right now in McKinney, United States the temperature is 23.9°C (feels like 26.4°C), with light rain. Relative humidity is 94% and wind is 17.6 km/h.
What is today's high and low temperature in McKinney?
Today's forecast high in McKinney is 30.7°C and the overnight low is 20.7°C. The diurnal range — high minus low — depends on cloud cover; clear days swing more than overcast ones.
Will it rain in McKinney today?
The chance of precipitation in McKinney today is 88%. Forecast accuracy is highest within the next 6 hours and decreases steadily out to 14 days.
How often does the weather here update?
Current observations refresh every 15-60 minutes from the nearest monitoring stations operated by national meteorological agencies. The hourly forecast updates approximately every hour; the 7- and 14-day outlook is recomputed several times per day.
What does 'feels like' temperature mean?
Feels-like (apparent) temperature accounts for humidity, wind chill and direct sunshine — variables that change how the human body perceives heat or cold. On hot, humid days it can be 3-7°C above the actual reading; on cold windy days it can be 5-15°C below.
Why does the temperature in McKinney differ from nearby cities?
Even short distances can change temperatures noticeably. McKinney's reading reflects altitude, proximity to large bodies of water, urban heat island effects, and the exact location of the monitoring stations supplying the data. Coastal cities are typically milder and more humid than inland equivalents.