NWS, American, European side by side around McKinney and nearby towns.Live rain radar →
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Next 14 hours
consensus of the three models
7-day forecast
where the models agree, and where they split
McKinney, TX is at its warmest in Aug (average highs near 99°F) and coldest in Jan (lows around 37°F), with roughly 55 in of precipitation across the year. Below, compare what NWS, American, European forecast for McKinney right now, and see exactly where they disagree.
McKinney climate by month
average daytime high and overnight low across a typical year
Jan
54°
37°
Feb
62°
44°
Mar
68°
50°
Apr
74°
56°
May
82°
66°
Jun
90°
73°
Jul
94°
76°
Aug
99°
79°
Sep
90°
71°
Oct
81°
62°
Nov
67°
49°
Dec
59°
43°
Common questions
What's the weather in McKinney today?
On this page we show what NWS, American, European each forecast for McKinney today, side by side and updated live. When all three agree the forecast is reliable; when they split, we flag it so you know the day is genuinely less certain.
Will it rain in McKinney today or tomorrow?
Check the hourly strip and 7-day forecast above. We compare rain from NWS, American, European for McKinney and flag the days where the models disagree on whether showers actually arrive, which is exactly when a single app can catch you out.
Which forecast is most accurate for McKinney?
No single model is always right. NWS, American, European each run their own physics, so we line all three up: when they agree the McKinney forecast is reliable, and when they split you should expect surprises. See our tested US accuracy scoreboard for how the models compare.
What is the warmest month in McKinney?
Aug is typically the warmest month in McKinney, with average highs around 99°F.
How cold does McKinney get?
The coldest month in McKinney is Jan, when overnight lows average about 37°F.
How much rain does McKinney get?
McKinney sees roughly 55 in of precipitation a year, with Oct usually the wettest month.
The forecasts Americans check
The two biggest apps keep their model a secret, so we can't show their numbers, only link you to them. The National Weather Service is public, so its data sits right in the comparison above.