Indianapolis, IN 14-Day Forecast
Indiana, United States 🇺🇸
92°
Sunny right now
Today: high 92°, low 64°
Updated just now
Indianapolis weather for the next 14 days
Wednesday, September 16
Light rain shower High 83° Low 71°Precipitation
81%
· 0.26 in
Max wind
6 mph
Humidity
86%
UV index
3 - Moderate
Sunrise / sunset
07:26 AM / 07:52 PM
Thursday, September 17
Overcast High 88° Low 74°Precipitation
63%
· 0.08 in
Max wind
7 mph
Humidity
77%
UV index
6 - High
Sunrise / sunset
07:27 AM / 07:50 PM
Friday, September 18
Sunny High 79° Low 69°Precipitation
45%
· 0.02 in
Max wind
9 mph
Humidity
83%
UV index
5 - Moderate
Sunrise / sunset
07:28 AM / 07:48 PM
Saturday, September 19
Sunny High 87° Low 69°Precipitation
60%
· 0.08 in
Max wind
8 mph
Humidity
76%
UV index
6 - High
Sunrise / sunset
07:29 AM / 07:47 PM
Sunday, September 20
Sunny High 90° Low 72°Precipitation
18%
· 0.01 in
Max wind
7 mph
Humidity
64%
UV index
8 - Very High
Sunrise / sunset
07:30 AM / 07:45 PM
Monday, September 21
Overcast High 88° Low 76°Precipitation
58%
· 0.16 in
Max wind
9 mph
Humidity
58%
UV index
8 - Very High
Sunrise / sunset
07:31 AM / 07:44 PM
Tuesday, September 22
Overcast High 82° Low 67°Precipitation
64%
· 0.11 in
Max wind
6 mph
Humidity
69%
UV index
7 - High
Sunrise / sunset
07:32 AM / 07:42 PM
Wednesday, September 23
Overcast High 82° Low 66°Precipitation
13%
· 0.0 in
Max wind
8 mph
Humidity
69%
UV index
7 - High
Sunrise / sunset
07:33 AM / 07:40 PM
Thursday, September 24
Light rain shower High 78° Low 68°Precipitation
88%
· 0.93 in
Max wind
10 mph
Humidity
88%
UV index
6 - High
Sunrise / sunset
07:34 AM / 07:39 PM
Friday, September 25
Light rain shower High 71° Low 63°Precipitation
89%
· 0.77 in
Max wind
8 mph
Humidity
88%
UV index
5 - Moderate
Sunrise / sunset
07:35 AM / 07:37 PM
Saturday, September 26
Sunny High 72° Low 60°Precipitation
36%
· 0.02 in
Max wind
13 mph
Humidity
73%
UV index
6 - High
Sunrise / sunset
07:36 AM / 07:35 PM
Sunday, September 27
Overcast High 61° Low 53°Precipitation
10%
· 0.0 in
Max wind
10 mph
Humidity
64%
UV index
4 - Moderate
Sunrise / sunset
07:37 AM / 07:34 PM
Monday, September 28
Sunny High 63° Low 49°Precipitation
2%
· 0.0 in
Max wind
8 mph
Humidity
52%
UV index
5 - Moderate
Sunrise / sunset
07:38 AM / 07:32 PM
Indianapolis 14-day outlook: the story
The warmest day of Indianapolis's 14-day outlook is Tuesday, September 15 with a high near 92°F (33°C); the coolest night comes Monday, September 28, dipping to 49°F (9°C). The trend points cooler: week two runs about 14°F below week one. Highs over the next two weeks average 87°F (30°C), about 8°F (4°C) above the typical September high of 79°F (26°C).
Precipitation is most likely on Tuesday 15, Wednesday 16, Thursday 17, Saturday 19 and beyond; the wettest day looks like Thursday, September 24 with about 0.93 in (23.6 mm) expected. For the weekend, expect Saturday 87°F (31°C) and sunny / Sunday 90°F (32°C) and sunny.
For typical conditions month by month, see the Indianapolis climate & average temperatures guide.
Indianapolis forecast questions
Will it rain in Indianapolis this week?
The forecast currently shows meaningful precipitation chances on 8 of the next 14 days, peaking around Thursday, September 24.
What will be the warmest day in Indianapolis over the next 14 days?
Tuesday, September 15, with a forecast high near 92°F (33°C).
How accurate is a 14-day forecast for Indianapolis?
Days 1-3 are highly reliable, days 4-7 capture the overall pattern well, and days 8-14 indicate trends rather than exact figures - check back as the date approaches; this page refreshes throughout the day.
Average temperatures in Indianapolis by month
| Month | High | Low | Rain days | Precipitation | Sunshine | Humidity |
|---|---|---|---|---|---|---|
| January | 38° | 23° | 10 | 3.4 in | 5.1 h/day | 72% |
| February | 43° | 25° | 9 | 3.2 in | 6.6 h/day | 69% |
| March | 52° | 34° | 13 | 5.3 in | 7.4 h/day | 68% |
| April | 62° | 43° | 12 | 4.1 in | 8.7 h/day | 66% |
| May | 73° | 55° | 14 | 4.9 in | 9.9 h/day | 70% |
| June | 82° | 64° | 12 | 4.0 in | 11.6 h/day | 67% |
| July | 85° | 67° | 13 | 4.6 in | 11.7 h/day | 73% |
| August | 83° | 66° | 11 | 3.5 in | 11.3 h/day | 72% |
| September | 79° | 61° | 7 | 2.9 in | 10.0 h/day | 69% |
| October | 66° | 49° | 10 | 3.1 in | 8.0 h/day | 69% |
| November | 52° | 36° | 9 | 3.2 in | 6.4 h/day | 71% |
| December | 44° | 29° | 9 | 3.5 in | 5.1 h/day | 74% |