Indianapolis Weather Forecast
Indianapolis weather: 62°F, partly cloudy. Hourly forecast, 14-day outlook, UV, air quality and the best time to visit.
Summary
Indianapolis is a city in Indiana. Indianapolis is known for Motor Speedway and canal walk. It has a population of about 880.000.
Right now it is 62°F (17°C) in Indianapolis with partly cloudy. It feels like 61°F. Today runs from 56°F to 63°F. Chance of precipitation is 2%. Sightseeing conditions score 9.5/10 - excellent - go now.
The best time to visit Indianapolis is May, July, August, September and October. The climate is continental. January, February and December tend to be the least comfortable months. July is the warmest month with average highs near 86°F, while January is the coldest with lows near 19°F.
The closest major airport is O'Hare International Airport (ORD), about 178 mi away. Nearby highlights include Indiana Dunes National Park, Mammoth Cave National Park, Starved Rock State Park and Hocking Hills State Park.
In plain terms. Today is much colder than average for September. The forecast high of 63°F is 16.2°F below the 80°F typical for this month. The best window to be outside is roughly 2 PM to 5 PM, when temperature, rain chance and wind line up best. sightseeing is the strongest bet in Indianapolis today at 9.5/10. No weather-related travel disruption is expected today. Roads and airports should run normally.
Compiled from this page's own data: atlas facts plus live Open-Meteo readings.
Weather in Indianapolis right now
Wear sunglasses and use SPF 30+ if you are outside for long.
Source: Open-Meteo. Updated 3:17 PM, Sep 22 local time.
See the Indianapolis forecast by time range
Next 24 hours
Hour-by-hour temperature, precipitation chance and wind.
16-day forecast for Indianapolis
Daily highs and lows, precipitation and UV.
| Day | Conditions | High / Low | Precip | Wind | UV |
|---|---|---|---|---|---|
| Tue, Sep 22 | ☁️ Overcast | 63° / 56° | 2% | 10 mph | 5 |
| Wed, Sep 23 | 🌦️ Light drizzle | 60° / 59° | 8% · 0,0 in | 8 mph | 4 |
| Thu, Sep 24 | ☁️ Overcast | 73° / 57° | 13% | 10 mph | 5 |
| Fri, Sep 25 | ☁️ Overcast | 72° / 55° | 0% | 8 mph | 6 |
| Sat, Sep 26 | ☁️ Overcast | 74° / 53° | 0% | 6 mph | 5 |
| Sun, Sep 27 | ☁️ Overcast | 73° / 61° | 2% | 6 mph | 4 |
| Mon, Sep 28 | ⛅ Partly cloudy | 79° / 57° | 2% | 6 mph | 5 |
| Tue, Sep 29 | 🌦️ Light drizzle | 82° / 61° | 20% · 0,0 in | 10 mph | 4 |
| Wed, Sep 30 | ☁️ Overcast | 84° / 69° | 25% | 16 mph | 4 |
| Thu, Oct 1 | ☁️ Overcast | 82° / 60° | 21% | 5 mph | 5 |
| Fri, Oct 2 | ☁️ Overcast | 89° / 62° | 19% | 10 mph | 5 |
| Sat, Oct 3 | ☁️ Overcast | 90° / 70° | 23% | 13 mph | 5 |
| Sun, Oct 4 | ☁️ Overcast | 73° / 59° | 16% | 11 mph | 4 |
| Mon, Oct 5 | 🌦️ Light drizzle | 62° / 51° | 13% · 0,0 in | 10 mph | 4 |
| Tue, Oct 6 | 🌦️ Light drizzle | 54° / 48° | 13% · 0,1 in | 10 mph | 2 |
| Wed, Oct 7 | ⛅ Partly cloudy | 64° / 46° | 19% | 7 mph | 5 |
Climate in Indianapolis month by month
Average high, average low and total rainfall, based on three years of reanalysis data.
| Month | Avg high | Avg low | Rainfall | Rating |
|---|---|---|---|---|
| January | 32° | 19° | 2,7 in | ★★☆☆☆ |
| February | 44° | 26° | 1,7 in | ★★★☆☆ |
| March | 58° | 38° | 5,2 in | ★★★☆☆ |
| April | 66° | 47° | 6,3 in | ★★★☆☆ |
| May | 72° | 54° | 4,5 in | ★★★★☆ |
| June | 83° | 65° | 5,5 in | ★★★★☆ |
| July | 86° | 69° | 4,3 in | ★★★★☆ |
| August | 83° | 66° | 3,3 in | ★★★★☆ |
| September | 80° | 60° | 2,7 in | ★★★★☆ |
| October | 68° | 49° | 2,1 in | ★★★★☆ |
| November | 53° | 38° | 2,6 in | ★★★☆☆ |
| December | 43° | 29° | 3,1 in | ★★☆☆☆ |
Climate type: Continental. Source: Open-Meteo archive (ERA5).
Weather map for Indianapolis
Animated model layers. Pick a layer to load it.
Animated layers by Windy. For pin-level detail and nearby places, see the interactive map below.
Air quality and pollen in Indianapolis
Air quality: Open-Meteo (CAMS). US AQI scale.
Sun, twilight and moon
Golden and blue hour are the standard photographic approximation around sunrise and sunset.
Best time to visit Indianapolis
Go in May, July, August, September and October. These months score highest on comfortable temperatures, low rainfall and useful daylight.
Hardest months: January, February and December - expect the least comfortable mix of heat, cold or rain.
Explore Indianapolis
Every topic we hold for this place, and the same topic for the places around it.
Weather for related places
Frequently asked questions
Where is Indianapolis?
Indianapolis is a city in Indiana. Its coordinates are 39.7684, -86.1581. It lies in North America.
What is the weather like in Indianapolis right now?
It is currently 62°F (17°C) with partly cloudy. Humidity is 84% and wind is 9 mph.
When is the best time to visit Indianapolis?
May, July, August, September and October offer the most comfortable conditions in Indianapolis, which has a continental climate. January, February and December are usually the hardest months for outdoor plans.
What time zone is Indianapolis in?
Indianapolis observes America/Indiana/Indianapolis (UTC-04:00). The local time is 3:17 PM.
How many people live in Indianapolis?
Indianapolis has a population of approximately 880.000.
What is the nearest airport to Indianapolis?
The closest airports are O'Hare International Airport (ORD), 178 mi away and Nashville International Airport (BNA), 253 mi away.
What are the top things to do in Indianapolis?
Popular options include Indiana Dunes National Park, Mammoth Cave National Park, Starved Rock State Park, Hocking Hills State Park, Cumberland Falls State Resort Park and Gateway Arch National Park.
Related articles
Data sources and methodology
| Place data | USPOTUS Atlas dataset (cities-us) - coordinates, hierarchy and facts. |
|---|---|
| Forecast and observations | Open-Meteo (ECMWF and national models). |
| Air quality and pollen | Copernicus CAMS via Open-Meteo. US AQI scale. |
| Climate averages | ERA5 reanalysis via the Open-Meteo archive, aggregated over 3 years. |
| Official alerts | US National Weather Service. |
| Method | Scores, comparisons and advice on this page are computed from the inputs above. Distances are straight-line. Nothing is estimated where data is missing - the block is simply not shown. |
Last updated September 22, 2026 at 3:17 PM local time. Live blocks refresh every 15 minutes; climate averages monthly.
