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Troy, MO Weather & Growing Conditions

Local forecast, frost dates, hardiness zone and planting guidance for Troy, a city in Lincoln County, Missouri.

This Afternoon
96°F
Partly Sunny
Partly sunny, with a high near 96. Heat index values as high as 102. West wind 2 to 6 mph.

7-day forecast for Troy

WhenTempForecastWindPrecip
This Afternoon 96°F Partly Sunny 2 to 6 mph W 2%
Tonight 70°F Partly Cloudy 2 mph SW 3%
Sunday 89°F Chance Rain Showers then Chance Showers And Thunderstorms 3 mph W 41%
Sunday Night 64°F Chance Showers And Thunderstorms then Showers And Thunderstorms 2 to 6 mph N 83%
Monday 75°F Showers And Thunderstorms 2 to 6 mph NE 83%
Monday Night 58°F Chance Showers And Thunderstorms 2 to 6 mph N 49%
Tuesday 68°F Slight Chance Rain Showers then Mostly Cloudy 5 to 8 mph NE 15%
Tuesday Night 52°F Mostly Cloudy 2 to 7 mph N 2%
Wednesday 72°F Mostly Sunny 6 mph N 1%
Wednesday Night 53°F Partly Cloudy 0 to 5 mph NE 0%
Thursday 75°F Mostly Sunny 3 mph NE 4%
Thursday Night 56°F Partly Cloudy 2 mph NE 5%
Friday 76°F Mostly Sunny 1 to 5 mph NE 7%
Friday Night 56°F Partly Cloudy 3 mph NE 4%

Forecast source: National Weather Service (api.weather.gov) for Troy (38.970, -90.967). Updated through the day.

Growing snapshot for Troy

Last spring frost
Apr 14
First fall frost
Oct 23
Growing season
191 days
Hardiness zone
6b

More local growing data for Troy: nearby ZIP 63379 weather · frost dates · planting calendar · Missouri frost dates

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Climate data from the nearest NOAA station, Warrenton 1 N, Mo (13.8 mi from Troy). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.