NWS, American, European side by side around Nampa 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
Nampa, ID is at its warmest in Jul (average highs near 97°F) and coldest in Jan (lows around 25°F), with roughly 16 in of precipitation across the year. Below, compare what NWS, American, European forecast for Nampa right now, and see exactly where they disagree.
Nampa climate by month
average daytime high and overnight low across a typical year
Jan
39°
25°
Feb
47°
29°
Mar
50°
31°
Apr
61°
39°
May
74°
49°
Jun
83°
58°
Jul
97°
68°
Aug
91°
64°
Sep
81°
56°
Oct
67°
44°
Nov
49°
33°
Dec
41°
29°
Common questions
What's the weather in Nampa today?
On this page we show what NWS, American, European each forecast for Nampa 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 Nampa today or tomorrow?
Check the hourly strip and 7-day forecast above. We compare rain from NWS, American, European for Nampa 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 Nampa?
No single model is always right. NWS, American, European each run their own physics, so we line all three up: when they agree the Nampa 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 Nampa?
Jul is typically the warmest month in Nampa, with average highs around 97°F.
How cold does Nampa get?
The coldest month in Nampa is Jan, when overnight lows average about 25°F.
How much rain does Nampa get?
Nampa sees roughly 16 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.