Highland, IN Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Highland, a town in Lake County, Indiana.
Tonight
66°F
Showers And Thunderstorms
Showers and thunderstorms before 1am, then patchy fog and showers and thunderstorms. Some of the storms could produce heavy rain. Cloudy. Low around 66, with temperatures rising to around 68 overnight. Southeast wind around 5 mph, with gusts as high as 10 mph. Chance of precipitation is 100%. New rainfall amounts between 2 and 3 inches possible.
7-day forecast for Highland
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Tonight | 66°F | Showers And Thunderstorms | 5 mph SE | 96% |
| Sunday | 69°F | Patchy Fog | 5 to 15 mph NE | 85% |
| Sunday Night | 56°F | Chance Rain Showers | 10 to 15 mph NE | 48% |
| Monday | 65°F | Chance Rain Showers | 15 mph ENE | 39% |
| Monday Night | 53°F | Chance Rain Showers | 10 to 15 mph ENE | 31% |
| Tuesday | 63°F | Chance Rain Showers | 10 to 15 mph NE | 28% |
| Tuesday Night | 54°F | Chance Rain Showers | 5 to 10 mph NE | 28% |
| Wednesday | 64°F | Slight Chance Rain Showers then Mostly Cloudy | 5 to 10 mph NE | 15% |
| Wednesday Night | 54°F | Mostly Cloudy | 5 to 10 mph NE | 8% |
| Thursday | 67°F | Partly Sunny | 5 mph NNE | 1% |
| Thursday Night | 55°F | Mostly Cloudy | 0 to 5 mph NE | 8% |
| Friday | 70°F | Partly Sunny | 0 to 5 mph NE | 7% |
| Friday Night | 56°F | Partly Cloudy | 0 to 5 mph NE | 2% |
| Saturday | 72°F | Mostly Sunny | 0 to 5 mph NE | 3% |
Forecast source: National Weather Service (api.weather.gov) for Highland (41.547, -87.458). Updated through the day.
Growing snapshot for Highland
Last spring frost
Apr 23
First fall frost
Oct 20
Growing season
179 days
Hardiness zone
6a
More local growing data for Highland: nearby ZIP 46322 weather · frost dates · planting calendar · Indiana frost dates
Nearby towns & communities
Cedar Lake
Crown Point
Dyer
East Chicago
Gary
Griffith
Hammond
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 (12.1 mi from Highland). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 20, 2026.