Indianapolis, Indiana, United States climate

Average temperatures, precipitation and all-time records for Indianapolis, Indiana, United States, with every day graded against ~46 years of local climate history (1980–2026). Its warmest month is July, averaging a high of 85°F, and its coldest is January, with an average low of 22°F.

Indianapolis, colloquially known as Indy, is the capital and most populous city of the U.S. state of Indiana and the county seat of Marion County. Indianapolis is situated in the state's central till plain region along the west fork of the White River. via Wikipedia

How today compares

Latest recorded day: 2026-07-24. Each reading placed on Indianapolis, Indiana, United States's own ±7-day seasonal distribution.

High 79°F Low · 15th pct

Low 60°F Low · 10th pct

Feels-like 82°F Low · 19th pct

Humidity 12.9 g/m³ Low · 16th pct

Wind 7 mph Below Normal · 31st pct

Gust 8 mph Near Record · 1st pct

Precip 0.00 in Dry

Open Indianapolis in the live weather grader →

Indianapolis average temperatures by month

Typical daily high and low, and average precipitation, for each month in Indianapolis, Indiana, United States, based on 1980–2026 records. The wettest month is April (0.20 in on an average day).

Month	Avg high	Avg low	Avg precip
January	36°F	22°F	0.10 in
February	41°F	26°F	0.10 in
March	52°F	34°F	0.10 in
April	64°F	44°F	0.20 in
May	73°F	55°F	0.20 in
June	82°F	65°F	0.20 in
July	85°F	68°F	0.10 in
August	83°F	66°F	0.10 in
September	78°F	58°F	0.10 in
October	66°F	46°F	0.10 in
November	52°F	37°F	0.10 in
December	40°F	27°F	0.10 in

Jan 4°–51°

Feb 9°–58°

Mar 21°–69°

Apr 32°–77°

May 43°–83°

Jun 56°–90°

Jul 61°–92°

Aug 58°–90°

Sep 48°–87°

Oct 35°–77°

Nov 25°–66°

Dec 12°–54°

Each bar spans the 10th-percentile daily low to the 90th-percentile daily high (the range most days fall within), coloured cold → hot on a shared -10°F to 115°F scale, so the whole year's rhythm reads at a glance.

Thinking of visiting Indianapolis?

Trips live and die by the weather. See how Indianapolis's comfort stacks up against where you live. Indianapolis is pre-loaded, just add your city.

Compare Indianapolis's comfort with your city →

Record extremes

Hottest day on record: 102°F on 1988-06-25
Coldest day on record: -24°F on 1994-01-19

All Indianapolis weather records →

Percentiles compare each day to Indianapolis, Indiana, United States's own history, so grades are relative to this location: a “Near Record” day here isn't the same temperature as elsewhere. How the grades work →