Hammond, Indiana Weather
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Climate of Hammond: monthly averages
Based on 25 years of satellite and reanalysis data (2001-2025), July is usually the hottest month in Hammond, with average daytime highs around 28°C. January is the coolest, when nights typically fall to about -8°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 980 mm of rain in a typical year. Most of it falls from May to August, and May is the wettest month at roughly 112 mm.
For outdoor plans and travel, September usually offers the most comfortable weather in Hammond, with mild days and relatively little rain.
| Month | Avg high | Avg low | Rainfall | Humidity |
|---|---|---|---|---|
| Jan | 0° | -8° | 51 mm | 86% |
| Feb | 1° | -7° | 53 mm | 84% |
| Mar | 8° | -2° | 62 mm | 80% |
| Apr | 15° | 4° | 94 mm | 77% |
| May | 21° | 10° | 112 mm | 77% |
| Jun | 26° | 16° | 106 mm | 77% |
| Jul | 28° | 19° | 101 mm | 74% |
| Aug | 28° | 18° | 106 mm | 73% |
| Sep | 24° | 14° | 81 mm | 73% |
| Oct | 17° | 7° | 93 mm | 75% |
| Nov | 9° | 0° | 61 mm | 80% |
| Dec | 2° | -5° | 57 mm | 86% |
Source: NASA POWER (MERRA-2 reanalysis), averaged over the roughly 50 km grid area around Hammond. Values describe typical conditions, not a forecast.
About Hammond weather
Hammond is a place in Indiana's humid continental climate, typical of the US Midwest, located about 231 km north-west of Indianapolis. Hammond gets warm, humid summers (June–August) each year. Hammond closes out the year with cold winters (December–February) with regular snow. This page shows live, auto-refreshing weather for Hammond: 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/Chicago.
Frequently asked questions
Hammond is about 231 km north-west of Indianapolis, in Indiana.
Hammond 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 Hammond's exact coordinates. No fixed schedule, the page updates whenever you load it.
July is usually the hottest month in Hammond, with average daytime highs of about 28°C and nights around 19°C.
The coldest nights come in January, when the average low is about -8°C and daytime highs reach around 0°C. Frost is possible on clear, calm nights.
Hammond receives about 980 mm of rain in a typical year. May is the wettest month at roughly 112 mm, and the main rainy period is May to August.
September usually offers the most comfortable weather in Hammond, with mild daytime temperatures and little rain.
In November Hammond typically sees daytime highs near 9°C and lows near 0°C, with about 61 mm of rain over the month and average humidity around 80%. 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 Hammond 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.
Hammond'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.