Harman US

Oldsmar, FL Weather & Growing Conditions

Local forecast, frost dates, hardiness zone and planting guidance for Oldsmar, a city in Pinellas County, Florida.

This Afternoon
92°F
Scattered Showers And Thunderstorms
Scattered showers and thunderstorms. Mostly sunny. High near 92, with temperatures falling to around 88 in the afternoon. Heat index values as high as 97. East northeast wind around 8 mph. Chance of precipitation is 40%. New rainfall amounts between a tenth and quarter of an inch possible.

7-day forecast for Oldsmar

WhenTempForecastWindPrecip
This Afternoon 92°F Scattered Showers And Thunderstorms 8 mph ENE 41%
Tonight 74°F Scattered Showers And Thunderstorms then Partly Cloudy 2 to 8 mph ENE 46%
Saturday 91°F Mostly Sunny then Scattered Showers And Thunderstorms 6 mph NE 40%
Saturday Night 74°F Chance Showers And Thunderstorms 5 mph ENE 56%
Sunday 90°F Mostly Sunny then Showers And Thunderstorms 5 mph NE 79%
Sunday Night 74°F Showers And Thunderstorms then Scattered Showers And Thunderstorms 3 mph ENE 79%
Monday 89°F Isolated Showers And Thunderstorms 5 mph ENE 78%
Monday Night 75°F Showers And Thunderstorms then Scattered Showers And Thunderstorms 5 mph ENE 78%
Tuesday 89°F Chance Showers And Thunderstorms 5 mph SSE 64%
Tuesday Night 76°F Chance Showers And Thunderstorms 5 mph NE 64%
Wednesday 89°F Isolated Showers And Thunderstorms then Chance Showers And Thunderstorms 6 mph NE 66%
Wednesday Night 76°F Chance Showers And Thunderstorms then Isolated Showers And Thunderstorms 7 mph ENE 66%
Thursday 89°F Mostly Sunny then Scattered Showers And Thunderstorms 9 mph NE 53%
Thursday Night 76°F Scattered Showers And Thunderstorms 9 mph NE 53%

Forecast source: National Weather Service (api.weather.gov) for Oldsmar (28.048, -82.671). Updated through the day.

Growing snapshot for Oldsmar

Last spring frost
Jan 20
First fall frost
Jan 9
Growing season
354 days
Hardiness zone
10a

More local growing data for Oldsmar: nearby ZIP 34677 weather · frost dates · planting calendar · Florida frost dates

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Climate data from the nearest NOAA station, Tarpon Spgs Sewage Plt, Fl (8.9 mi from Oldsmar). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.