NWS, American, European side by side around Allen 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
Allen, TX is at its warmest in Aug (average highs near 99°F) and coldest in Jan (lows around 37°F), with roughly 58 in of precipitation across the year. Below, compare what NWS, American, European forecast for Allen right now, and see exactly where they disagree.
Allen climate by month
average daytime high and overnight low across a typical year
Jan
55°
37°
Feb
63°
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°
50°
Dec
60°
43°
Common questions
What's the weather in Allen today?
On this page we show what NWS, American, European each forecast for Allen 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 Allen today or tomorrow?
Check the hourly strip and 7-day forecast above. We compare rain from NWS, American, European for Allen 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 Allen?
No single model is always right. NWS, American, European each run their own physics, so we line all three up: when they agree the Allen 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 Allen?
Aug is typically the warmest month in Allen, with average highs around 99°F.
How cold does Allen get?
The coldest month in Allen is Jan, when overnight lows average about 37°F.
How much rain does Allen get?
Allen sees roughly 58 in of precipitation a year, with May 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.