Marion, IN Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Marion, a city in Grant County, Indiana.
This Afternoon
79°F
Showers And Thunderstorms Likely
Showers and thunderstorms likely before 5pm, then a chance of showers and thunderstorms. Partly sunny, with a high near 79. South wind around 5 mph. Chance of precipitation is 70%. New rainfall amounts between a quarter and half of an inch possible.
7-day forecast for Marion
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 79°F | Showers And Thunderstorms Likely | 5 mph S | 74% |
| Tonight | 67°F | Chance Showers And Thunderstorms | 0 to 5 mph S | 54% |
| Sunday | 80°F | Showers And Thunderstorms Likely | 0 to 10 mph NW | 59% |
| Sunday Night | 56°F | Showers And Thunderstorms Likely | 10 to 15 mph NE | 62% |
| Monday | 67°F | Chance Rain Showers | 10 to 15 mph NE | 45% |
| Monday Night | 52°F | Chance Rain Showers | 10 to 15 mph NE | 31% |
| Tuesday | 66°F | Chance Rain Showers | 10 to 15 mph NE | 31% |
| Tuesday Night | 54°F | Chance Rain Showers | 5 to 15 mph NE | 31% |
| Wednesday | 67°F | Chance Showers And Thunderstorms | 10 mph NE | 35% |
| Wednesday Night | 54°F | Chance Showers And Thunderstorms | 5 to 10 mph NE | 31% |
| Thursday | 69°F | Mostly Cloudy | 5 mph NE | 8% |
| Thursday Night | 53°F | Mostly Cloudy | 0 to 5 mph NE | 9% |
| Friday | 72°F | Partly Sunny | 0 to 5 mph NE | 9% |
| Friday Night | 51°F | Partly Cloudy | 0 to 5 mph NE | 4% |
Forecast source: National Weather Service (api.weather.gov) for Marion (40.550, -85.660). Updated through the day.
Growing snapshot for Marion
Last spring frost
Apr 26
First fall frost
Oct 20
Growing season
175 days
Hardiness zone
6a
More local growing data for Marion: nearby ZIP 46953 weather · frost dates · planting calendar · Indiana frost dates
Nearby towns & communities
Converse
Fairmount
Fowlerton
Gas City
Herbst
Jalapa
Jonesboro
Landess
Matthews
Mier
Point Isabel
Shamrock Lakes
Sims
Swayzee
Sweetser
Upland
Van Buren
Climate data from the nearest NOAA station, Marion 2 N, In (4.2 mi from Marion). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.