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Orlando weather: Humidity peaks with heat index values over 100°F

By
FOX 35 Orlando
Weather Forecast
Published May 20, 2026 6:41 AM EDT
Published May 20, 2026 6:41 AM EDT
Orlando Weather Forecast: Tracking Memorial Day Weather
Orlando Weather Forecast: Tracking Memorial Day Weather

Orlando Weather Forecast: Tracking Memorial Day Weather

FOX 35 Storm Team Senior Meteorologist Noah Bergren is tracking showers for parts of the holiday weekend.

The Brief

    • Central Florida is bracing for a notable surge in humidity heading into Memorial Day weekend, driving afternoon heat index values toward 100°F despite standard high temperatures holding steady in the low 90s.
    • The feels-like temperature is forecast to peak at a scorching 101°F on Sunday, while overnight lows will offer little relief as they remain sticky and warm in the low 70s.
    • Although the region is inching closer to the official summer rainy season, any afternoon pop-up showers or storms this week will remain isolated and non-widespread, with the highest rain chances dropping off just in time for Memorial Day.

ORLANDO, Fla. - The humidity in Central Florida is expected to ramp up and get more intense heading into Memorial Day weekend. 

Though temperatures remain in the low90s, the heat index is pushing toward 100 degrees throughout the remainder of this week. 

Heat index this week

What we know:

The heat index is expected to peak on Sunday this week – reaching 101.

Here's what the forecast shows: 

  • Thursday, May 21: 91 degrees, 30% rain. Heat index: 96
  • Friday, May 22: 91 degrees, 30% rain. Heat index: 98
  • Saturday, May 23: 91 degrees, 30% rain. Heat index: 99
  • Sunday, May 24: 90 degrees, 20% rain. Heat index: 101
  • Monday, May 25: 90 degrees, 20% rain. Heat index: 98

Daily 90-degree weather

Wednesday night: Tonight will be warm and humid with overnight lows into the 70s across central Florida, and a bit of an east breeze continuing overnight.

This week: The weather will be mostly sunny in the morning with afternoon pop-up showers or storms around Orlando and points west. Highs will be around 90 for the Orlando area. Afternoon/evening storms and showers won't be widespread, and will peak outside our region, in the Tampa and I-75 corridor area.

Looking ahead

Getting closer to declaring the start of the rainy season in Central Florida, a few afternoon showers will pop up Friday and Saturday afternoon. Chances will actually drop Sunday into next Monday, for Memorial Day.

The Source: Information in this story was gathered by FOX 35's Noah Bergren. 

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