Harman US

Spencerville, IN Weather & Growing Conditions

Local forecast, frost dates, hardiness zone and planting guidance for Spencerville, a community in Dekalb County, Indiana.

This Afternoon
72°F
Chance Showers And Thunderstorms
A chance of showers and thunderstorms before 5pm, then a slight chance of showers and thunderstorms. Mostly cloudy, with a high near 72. Southeast wind around 5 mph. Chance of precipitation is 30%.

7-day forecast for Spencerville

WhenTempForecastWindPrecip
This Afternoon 72°F Chance Showers And Thunderstorms 5 mph SE 32%
Tonight 65°F Chance Showers And Thunderstorms 0 to 5 mph SE 84%
Sunday 73°F Showers And Thunderstorms 5 to 10 mph N 78%
Sunday Night 53°F Chance Showers And Thunderstorms 10 to 15 mph NE 47%
Monday 65°F Chance Rain Showers 10 to 15 mph NE 33%
Monday Night 50°F Slight Chance Rain Showers then Mostly Cloudy 10 to 15 mph NE 15%
Tuesday 63°F Slight Chance Rain Showers 10 to 15 mph NE 20%
Tuesday Night 52°F Chance Rain Showers 10 to 15 mph NE 39%
Wednesday 64°F Chance Rain Showers 10 to 15 mph NE 49%
Wednesday Night 51°F Chance Showers And Thunderstorms 10 to 15 mph NE 48%
Thursday 67°F Partly Sunny 10 mph NE 9%
Thursday Night 51°F Mostly Cloudy 5 to 10 mph NE 8%
Friday 70°F Partly Sunny 5 to 10 mph NE 7%
Friday Night 49°F Partly Cloudy 0 to 5 mph NE 7%

Forecast source: National Weather Service (api.weather.gov) for Spencerville (41.280, -84.929). Updated through the day.

Growing snapshot for Spencerville

Last spring frost
Apr 28
First fall frost
Oct 17
Growing season
170 days
Hardiness zone
6a

More local growing data for Spencerville: nearby ZIP 46788 weather · frost dates · planting calendar · Indiana frost dates

Nearby towns & communities

All Indiana locations ›

Climate data from the nearest NOAA station, Hicksville, Oh (7.8 mi from Spencerville). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.