Hammond, IN Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Hammond, a city in Lake County, Indiana.
Overnight
63°F
Showers And Thunderstorms Likely
Showers and thunderstorms likely. Cloudy. Low around 63, with temperatures rising to around 65 overnight. East southeast wind around 10 mph, with gusts as high as 20 mph. Chance of precipitation is 60%. New rainfall amounts between a quarter and half of an inch possible.
7-day forecast for Hammond
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Overnight | 63°F | Showers And Thunderstorms Likely | 10 mph ESE | 58% |
| Saturday | 77°F | Showers And Thunderstorms then Showers And Thunderstorms Likely | 5 to 10 mph SE | 100% |
| Saturday Night | 64°F | Showers And Thunderstorms | 5 mph S | 94% |
| Sunday | 70°F | Showers And Thunderstorms Likely | 10 to 15 mph NNE | 64% |
| Sunday Night | 57°F | Chance Rain Showers | 15 mph NE | 36% |
| Monday | 66°F | Chance Rain Showers | 15 mph ENE | 33% |
| Monday Night | 54°F | Slight Chance Rain Showers then Mostly Cloudy | 10 to 15 mph ENE | 18% |
| Tuesday | 64°F | Slight Chance Rain Showers | 10 to 15 mph NE | 16% |
| Tuesday Night | 54°F | Mostly Cloudy | 10 to 15 mph NE | 14% |
| Wednesday | 65°F | Partly Sunny | 10 mph NE | 12% |
| Wednesday Night | 55°F | Mostly Cloudy | 5 to 10 mph NNE | 7% |
| Thursday | 67°F | Partly Sunny | 5 to 10 mph NNE | 3% |
| Thursday Night | 56°F | Mostly Cloudy | 5 mph NE | 3% |
| Friday | 69°F | Mostly Sunny | 5 to 10 mph NE | 3% |
Forecast source: National Weather Service (api.weather.gov) for Hammond (41.619, -87.495). Updated through the day.
Growing snapshot for Hammond
Last spring frost
Apr 23
First fall frost
Oct 20
Growing season
179 days
Hardiness zone
6a
More local growing data for Hammond: nearby ZIP 46320 weather · frost dates · planting calendar · Indiana frost dates
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Merrillville
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St. John
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Climate data from the nearest NOAA station, Park Forest, Il (12.3 mi from Hammond). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.