Indianapolis Weather Forecast
Indianapolis weather: 73°F, mainly clear. Hourly forecast, 14-day outlook, UV, air quality and the best time to visit.
Snow forecast for Indianapolis
No snow is in the current forecast window for Indianapolis.
0 of the next 16 nights are forecast to reach freezing.
Historically, average lows drop below freezing in January, February and December.
16-day forecast for Indianapolis
Daily highs and lows, precipitation and UV.
| Day | Conditions | High / Low | Precip | Wind | UV |
|---|---|---|---|---|---|
| Fri, Sep 18 | 🌧️ Rain | 80° / 67° | 35% · 0,2 in | 9 mph | 5 |
| Sat, Sep 19 | 🌧️ Heavy drizzle | 82° / 64° | 40% · 0,1 in | 9 mph | 6 |
| Sun, Sep 20 | 🌦️ Drizzle | 91° / 69° | 40% · 0,0 in | 11 mph | 6 |
| Mon, Sep 21 | 🌦️ Light showers | 74° / 62° | 55% · 0,3 in | 11 mph | 4 |
| Tue, Sep 22 | 🌦️ Light showers | 64° / 58° | 47% · 0,2 in | 9 mph | 2 |
| Wed, Sep 23 | ☁️ Overcast | 63° / 58° | 6% | 9 mph | 3 |
| Thu, Sep 24 | ☁️ Overcast | 62° / 53° | 1% | 10 mph | 4 |
| Fri, Sep 25 | ☁️ Overcast | 69° / 58° | 3% | 10 mph | 4 |
| Sat, Sep 26 | ☁️ Overcast | 72° / 52° | 4% | 9 mph | 5 |
| Sun, Sep 27 | ☁️ Overcast | 76° / 55° | 11% | 7 mph | 5 |
| Mon, Sep 28 | ☁️ Overcast | 78° / 55° | 10% | 6 mph | 5 |
| Tue, Sep 29 | 🌦️ Light rain | 64° / 57° | 11% · 0,3 in | 8 mph | 1 |
| Wed, Sep 30 | 🌧️ Rain | 59° / 57° | 11% · 1,1 in | 7 mph | 0 |
| Thu, Oct 1 | ☁️ Overcast | 66° / 54° | 10% | 6 mph | 3 |
| Fri, Oct 2 | ☁️ Overcast | 72° / 56° | 32% | 9 mph | 5 |
| Sat, Oct 3 | ☀️ Clear sky | -- / -- | 23% | -- | — |
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).
What to pack, what to skip
- Lightweight, light-coloured clothing and a refillable water bottle
- Sunglasses, a brimmed hat and SPF 30+
- A packable rain shell - 4 of the next 7 days carry a real chance of rain
- If your dates are flexible, avoid January, February and December - historically the least comfortable months here.
See the Indianapolis forecast by time range
Indianapolis weather - more answers
Explore Indianapolis
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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 73°F (23°C) with mainly clear. Humidity is 92% and wind is 2 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 5:18 AM.
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 18, 2026 at 5:18 AM local time. Live blocks refresh every 15 minutes; climate averages monthly.
