NWS, American, European side by side around Waterbury 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
Waterbury, CT is at its warmest in Jul (average highs near 83°F) and coldest in Feb (lows around 25°F), with roughly 59 in of precipitation across the year. Below, compare what NWS, American, European forecast for Waterbury right now, and see exactly where they disagree.
Waterbury climate by month
average daytime high and overnight low across a typical year
Jan
41°
27°
Feb
43°
25°
Mar
49°
32°
Apr
59°
40°
May
69°
49°
Jun
78°
58°
Jul
83°
66°
Aug
79°
62°
Sep
73°
57°
Oct
65°
47°
Nov
51°
35°
Dec
43°
29°
Common questions
What's the weather in Waterbury today?
On this page we show what NWS, American, European each forecast for Waterbury 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 Waterbury today or tomorrow?
Check the hourly strip and 7-day forecast above. We compare rain from NWS, American, European for Waterbury 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 Waterbury?
No single model is always right. NWS, American, European each run their own physics, so we line all three up: when they agree the Waterbury 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 Waterbury?
Jul is typically the warmest month in Waterbury, with average highs around 83°F.
How cold does Waterbury get?
The coldest month in Waterbury is Feb, when overnight lows average about 25°F.
How much rain does Waterbury get?
Waterbury sees roughly 59 in of precipitation a year, with Jul 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.