Plymouth, IN Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Plymouth, a city in Marshall County, Indiana.
This Afternoon
82°F
Sunny
Sunny, with a high near 82. South wind around 5 mph.
7-day forecast for Plymouth
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 82°F | Sunny | 5 mph S | 0% |
| Tonight | 62°F | Mostly Clear | 0 to 5 mph S | 0% |
| Wednesday | 83°F | Slight Chance Rain Showers | 5 mph SW | 20% |
| Wednesday Night | 65°F | Chance Showers And Thunderstorms | 0 to 5 mph SW | 73% |
| Thursday | 78°F | Showers And Thunderstorms Likely | 0 to 5 mph SW | 58% |
| Thursday Night | 63°F | Chance Showers And Thunderstorms | 0 to 5 mph E | 44% |
| Friday | 81°F | Slight Chance Rain Showers then Slight Chance Showers And Thunderstorms | 0 to 5 mph SW | 17% |
| Friday Night | 64°F | Slight Chance Showers And Thunderstorms then Chance Showers And Thunderstorms | 0 to 5 mph SW | 28% |
| Saturday | 82°F | Mostly Sunny then Slight Chance Showers And Thunderstorms | 5 to 10 mph SW | 20% |
| Saturday Night | 64°F | Chance Showers And Thunderstorms | 0 to 5 mph SW | 33% |
| Sunday | 82°F | Chance Showers And Thunderstorms | 5 to 10 mph S | 44% |
| Sunday Night | 68°F | Chance Showers And Thunderstorms | 5 to 10 mph SW | 44% |
| Monday | 84°F | Chance Showers And Thunderstorms | 5 to 10 mph SW | 46% |
| Monday Night | 68°F | Chance Showers And Thunderstorms then Showers And Thunderstorms Likely | 5 to 10 mph SW | 61% |
Forecast source: National Weather Service (api.weather.gov) for Plymouth (41.349, -86.319). Updated through the day.
Growing snapshot for Plymouth
Last spring frost
Apr 25
First fall frost
Oct 21
Growing season
178 days
Hardiness zone
6a
More local growing data for Plymouth: nearby ZIP 46563 weather · frost dates · planting calendar · Indiana frost dates
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Talma
Teegarden
Tippecanoe
Tyner
Climate data from the nearest NOAA station, Plymouth, In (1.2 mi from Plymouth). Frost dates are 1991–2020 averages, not a forecast. Page updated Aug 4, 2026.