Bloomington, Indiana Weather
Hourly forecast in Bloomington
16-day forecast for Bloomington
Check any date
Bloomington air quality & conditions
Air quality index
Today's outlook for Bloomington
Loading today's outlook…
Explore nearby
Weather articles
Weather news
Climate of Bloomington: monthly averages
Based on 25 years of satellite and reanalysis data (2001-2025), August is usually the hottest month in Bloomington, with average daytime highs around 30°C. January is the coolest, when nights typically fall to about -6°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 1240 mm of rain in a typical year. Most of it falls from March to July and October (around 57% of the yearly total), and May is the wettest month at roughly 132 mm.
For outdoor plans and travel, August to September usually offer the most comfortable weather in Bloomington, with mild days and relatively little rain.
| Month | Avg high | Avg low | Rainfall | Humidity |
|---|---|---|---|---|
| Jan | 3° | -6° | 85 mm | 86% |
| Feb | 5° | -5° | 79 mm | 85% |
| Mar | 11° | 0° | 109 mm | 82% |
| Apr | 18° | 6° | 125 mm | 79% |
| May | 23° | 12° | 132 mm | 80% |
| Jun | 28° | 17° | 129 mm | 79% |
| Jul | 30° | 19° | 114 mm | 76% |
| Aug | 30° | 18° | 84 mm | 71% |
| Sep | 27° | 14° | 88 mm | 69% |
| Oct | 19° | 7° | 104 mm | 73% |
| Nov | 12° | 1° | 94 mm | 79% |
| Dec | 5° | -3° | 98 mm | 86% |
Source: NASA POWER (MERRA-2 reanalysis), averaged over the roughly 50 km grid area around Bloomington. Values describe typical conditions, not a forecast.
About Bloomington weather
Bloomington, in Indiana's humid continental climate, typical of the US Midwest, is positioned about 74 km south-west of Indianapolis. The warmer months mean warm, humid summers (June–August). Finally, there's cold winters (December–February) with regular snow. This page shows live, auto-refreshing weather for Bloomington: 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
Bloomington is about 74 km south-west of Indianapolis, in Indiana.
Bloomington 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 Bloomington's exact coordinates. No fixed schedule, the page updates whenever you load it.
August is usually the hottest month in Bloomington, with average daytime highs of about 30°C and nights around 18°C.
The coldest nights come in January, when the average low is about -6°C and daytime highs reach around 3°C. Frost is possible on clear, calm nights.
Bloomington receives about 1240 mm of rain in a typical year. May is the wettest month at roughly 132 mm, and the main rainy period is March to July and October.
August to September usually offer the most comfortable weather in Bloomington, with mild daytime temperatures and little rain.
In November Bloomington typically sees daytime highs near 12°C and lows near 1°C, with about 94 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.
The current temperature for Bloomington updates automatically at the top of this page — scroll to the hourly strip below to see how it's expected to change over the day.
Bloomington'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.