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Every US forecast, compared
CheckWeather US›Indianapolis

Indianapolis weather

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NWSNational Blend (NBM)
78°
Mainly clear
Feels 79° · Wind 5 mph · Humidity 41%
AmericanNOAA GFS
78°
Clear
Feels 78° · Wind 6 mph · Humidity 31%
EuropeanECMWF
77°
Overcast
Feels 77° · Wind 4 mph · Humidity 40%

Latest for Indianapolis: NWS (National Blend (NBM)): 78° Mainly clear · American (NOAA GFS): 78° Clear · European (ECMWF): 77° Overcast.

The weather map: all three models at once

NWS, American, European side by side around Indianapolis 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

Indianapolis, IN is at its warmest in Jul (average highs near 85°F) and coldest in Jan (lows around 26°F), with roughly 42 in of precipitation across the year. Below, compare what NWS, American, European forecast for Indianapolis right now, and see exactly where they disagree.

Indianapolis climate by month

average daytime high and overnight low across a typical year
Jan
39°
26°
Feb
50°
30°
Mar
54°
35°
Apr
64°
44°
May
75°
55°
Jun
83°
62°
Jul
85°
66°
Aug
83°
65°
Sep
79°
60°
Oct
68°
48°
Nov
54°
38°
Dec
45°
32°

Which forecast is most accurate in Indianapolis?

CheckWeather Score — graded against the weather that actually happened
ProviderCheckWeather Score🌡 Temp💨 Wind🌧 RainRun by
European logo
European ★ Best
Behind Apple Weather, Windy
97
/100rank #1
95±0.5°F97±0.9 mph100100% hitECMWF — European Centre for Medium-Range Weather ForecastsReading, United Kingdom
American logo
American
Behind Windy & many free apps
70
/100rank #2
84±1.6°F94±2.0 mph3665% hitNOAA / NCEP (United States)College Park, Maryland, USA

The CheckWeather Score blends temperature, wind and rain accuracy — each measured against ERA5 (the recorded weather) over the last 30 days across 40 cities. Lower error means a higher score. The apps you know (AccuWeather, Apple Weather, The Weather Channel) are built on these models.

Common questions

What's the weather in Indianapolis today?
On this page we show what NWS, American, European each forecast for Indianapolis 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 Indianapolis today or tomorrow?
Check the hourly strip and 7-day forecast above. We compare rain from NWS, American, European for Indianapolis 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 Indianapolis?
No single model is always right. NWS, American, European each run their own physics, so we line all three up: when they agree the Indianapolis 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 Indianapolis?
Jul is typically the warmest month in Indianapolis, with average highs around 85°F.
How cold does Indianapolis get?
The coldest month in Indianapolis is Jan, when overnight lows average about 26°F.
How much rain does Indianapolis get?
Indianapolis sees roughly 42 in of precipitation a year, with Mar 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.

NWSNational Weather Service
Open model · shown above ✓AWAccuWeather
Closed model · open ↗↗TWCThe Weather Channel
Closed model · open ↗↗

Nearby

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