Griffith, IN Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Griffith, a town in Lake County, Indiana.
This Afternoon
65°F
Slight Chance Rain Showers
A slight chance of rain showers and a slight chance of drizzle. Cloudy. High near 65, with temperatures falling to around 58 in the afternoon. West southwest wind around 15 mph, with gusts as high as 25 mph.
7-day forecast for Griffith
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 65°F | Slight Chance Rain Showers | 15 mph WSW | 2% |
| Tonight | 47°F | Slight Chance Rain Showers then Slight Chance Rain | 10 to 15 mph SW | 17% |
| Thursday | 55°F | Mostly Cloudy then Chance Rain | 10 to 15 mph WSW | 44% |
| Thursday Night | 40°F | Rain | 10 mph NW | 77% |
| Friday | 50°F | Slight Chance Rain | 10 to 15 mph NNW | 20% |
| Friday Night | 36°F | Partly Cloudy | 5 to 10 mph NNW | 6% |
| Saturday | 50°F | Mostly Sunny | 5 mph NW | 2% |
| Saturday Night | 33°F | Mostly Clear | 0 to 5 mph W | 0% |
| Sunday | 56°F | Sunny | 5 to 10 mph W | 1% |
| Sunday Night | 36°F | Mostly Clear | 0 to 5 mph W | 0% |
| Monday | 60°F | Sunny | 0 to 10 mph SW | 0% |
| Monday Night | 40°F | Mostly Clear | 5 mph WSW | 0% |
| Tuesday | 61°F | Sunny | 0 to 5 mph WNW | 1% |
| Tuesday Night | 39°F | Partly Cloudy | 0 mph | 2% |
Forecast source: National Weather Service (api.weather.gov) for Griffith (41.528, -87.424). Updated through the day.
Growing snapshot for Griffith
Last spring frost
Apr 23
First fall frost
Oct 20
Growing season
179 days
Hardiness zone
6a
More local growing data for Griffith: nearby ZIP 46319 weather · frost dates · planting calendar · Indiana frost dates
Nearby towns & communities
Cedar Lake
Crown Point
Dyer
East Chicago
Gary
Hammond
Highland
Hobart
Lake Dalecarlia
Lake Station
Leroy
Lowell
Merrillville
Munster
New Chicago
Ross
Schererville
Schneider
Shelby
St. John
Whiting
Winfield
Climate data from the nearest NOAA station, Park Forest, Il (13.5 mi from Griffith). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.