Historical weather data, all-time temperature records, and monthly climate averages for Oldsmar, FL. Explore typical weather conditions by week for trip planning, and see how today compares to the historical record.
April 4th in Oldsmar typically lands right in that sweet spring spot — average high of 80° and a low around 62°. There's only a 16% chance of rain today, though the date's range tells a story: from a chilly 45° back in 1987 to this year's record-breaking 93°.
Oldsmar's weather has real range for a Florida town — the all-time high hit 100° in July 2025, while the coldest day on record bottomed out at 18° back in December 1962. The wettest single day was an extraordinary 11.45 inches on May 8, 1979, and yes, it has technically snowed here, a trace 0.2 inches in January 1977.
Summers run long and hot, with highs in the 90s from June through September and the wettest stretch arriving late June into July. If you're planning a visit, January through March offers the most comfortable weather, with highs in the low-to-mid 70s and far less humidity. Spring and fall are the sweet spots — warm but not punishing, and drier than the peak summer months.