NWS, American, European side by side around Bethlehem 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
Bethlehem, PA is at its warmest in Jul (average highs near 87°F) and coldest in Feb (lows around 27°F), with roughly 44 in of precipitation across the year. Below, compare what NWS, American, European forecast for Bethlehem right now, and see exactly where they disagree.
Bethlehem climate by month
average daytime high and overnight low across a typical year
Jan
43°
29°
Feb
47°
27°
Mar
52°
33°
Apr
64°
43°
May
73°
50°
Jun
82°
60°
Jul
87°
67°
Aug
82°
63°
Sep
76°
58°
Oct
67°
47°
Nov
54°
37°
Dec
44°
30°
Common questions
What's the weather in Bethlehem today?
On this page we show what NWS, American, European each forecast for Bethlehem 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 Bethlehem today or tomorrow?
Check the hourly strip and 7-day forecast above. We compare rain from NWS, American, European for Bethlehem 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 Bethlehem?
No single model is always right. NWS, American, European each run their own physics, so we line all three up: when they agree the Bethlehem 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 Bethlehem?
Jul is typically the warmest month in Bethlehem, with average highs around 87°F.
How cold does Bethlehem get?
The coldest month in Bethlehem is Feb, when overnight lows average about 27°F.
How much rain does Bethlehem get?
Bethlehem sees roughly 44 in of precipitation a year, with Dec 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.