NWS, American, European side by side around Champaign 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
Champaign, IL is at its warmest in Jun (average highs near 84°F) and coldest in Jan (lows around 25°F), with roughly 37 in of precipitation across the year. Below, compare what NWS, American, European forecast for Champaign right now, and see exactly where they disagree.
Champaign climate by month
average daytime high and overnight low across a typical year
Jan
38°
25°
Feb
49°
29°
Mar
53°
34°
Apr
64°
44°
May
76°
55°
Jun
84°
64°
Jul
83°
66°
Aug
82°
65°
Sep
78°
60°
Oct
67°
49°
Nov
53°
38°
Dec
43°
31°
Common questions
What's the weather in Champaign today?
On this page we show what NWS, American, European each forecast for Champaign 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 Champaign today or tomorrow?
Check the hourly strip and 7-day forecast above. We compare rain from NWS, American, European for Champaign 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 Champaign?
No single model is always right. NWS, American, European each run their own physics, so we line all three up: when they agree the Champaign 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 Champaign?
Jun is typically the warmest month in Champaign, with average highs around 84°F.
How cold does Champaign get?
The coldest month in Champaign is Jan, when overnight lows average about 25°F.
How much rain does Champaign get?
Champaign sees roughly 37 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.