Franklin, Indiana Weather
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Climate of Franklin: monthly averages
Based on 25 years of satellite and reanalysis data (2001-2025), August is usually the hottest month in Franklin, with average daytime highs around 29°C. January is the coolest, when nights typically fall to about -7°C and frost is possible on the coldest nights. That is a wide yearly range of roughly 36°C, so the seasons feel very different from each other.
The area receives about 1190 mm of rain in a typical year. Most of it falls from April to July, and June is the wettest month at roughly 135 mm.
For outdoor plans and travel, August to October usually offer the most comfortable weather in Franklin, with mild days and relatively little rain.
| Month | Avg high | Avg low | Rainfall | Humidity |
|---|---|---|---|---|
| Jan | 2° | -7° | 81 mm | 86% |
| Feb | 4° | -6° | 73 mm | 85% |
| Mar | 11° | 0° | 98 mm | 82% |
| Apr | 18° | 6° | 119 mm | 79% |
| May | 23° | 12° | 125 mm | 80% |
| Jun | 27° | 17° | 135 mm | 79% |
| Jul | 29° | 19° | 114 mm | 77% |
| Aug | 29° | 18° | 88 mm | 73% |
| Sep | 26° | 14° | 83 mm | 71% |
| Oct | 19° | 7° | 99 mm | 74% |
| Nov | 11° | 0° | 88 mm | 79% |
| Dec | 4° | -4° | 91 mm | 86% |
Source: NASA POWER (MERRA-2 reanalysis), averaged over the roughly 50 km grid area around Franklin. Values describe typical conditions, not a forecast.
About Franklin weather
Franklin is set in Indiana's humid continental climate, typical of the US Midwest, about 33 km south of Indianapolis. Summers bring warm, humid summers (June–August). The year winds down with cold winters (December–February) with regular snow. This page shows live, auto-refreshing weather for Franklin: current conditions, an hourly breakdown, a 16-day outlook, a date-lookup tool for any past or future date, and real-time air quality, sourced from Open-Meteo. Local timezone: America/Indiana/Indianapolis.
Frequently asked questions
Franklin is about 33 km south of Indianapolis, in Indiana.
Franklin sees cold winters (December–February) with regular snow.
The live current conditions, hourly forecast and 16-day outlook above are pulled in real time for Franklin's exact coordinates. No fixed schedule, the page updates whenever you load it.
August is usually the hottest month in Franklin, with average daytime highs of about 29°C and nights around 18°C.
The coldest nights come in January, when the average low is about -7°C and daytime highs reach around 2°C. Frost is possible on clear, calm nights.
Franklin receives about 1190 mm of rain in a typical year. June is the wettest month at roughly 135 mm, and the main rainy period is April to July.
August to October usually offer the most comfortable weather in Franklin, with mild daytime temperatures and little rain.
In November Franklin typically sees daytime highs near 11°C and lows near 0°C, with about 88 mm of rain over the month and average humidity around 79%. Check the live forecast above for this week's actual conditions.
Up to 16 days ahead using the extended forecast and date picker above; further-out or historical dates use the same date lookup tool.
Live temperature for Franklin is shown at the top of this page and refreshes automatically — see the hourly breakdown below for how it changes through the day.
Franklin's day-to-day weather follows the broader pattern of Indiana described above. See the hourly weather forecast or the air quality index for more detail.