Miami Forecast: Highs Near 90°F With Afternoon Storms
Miami Forecast: Highs Near 90°F With Afternoon Storms
US · Published Sep 23, 2026
The National Weather Service and private weather models project that Miami will experience highs in the upper 80s to near 90°F (31-32°C) on September 25,
The day is expected to feature partly to mostly sunny skies, with a chance of afternoon showers and thunderstorms. This forecast aligns with late-September climatology, where the average daily maximum temperature typically reaches 88-89°F (31°C). A northwesterly flow and modest dew points are expected to limit extreme heat, keeping most temperature readings below 92°F (33°C). Brief peaks near 90°F (32°C) are possible before convection develops later in the day.

Impact & Risks

Residents and visitors in Miami should prepare for typical late-summer weather conditions, including warm temperatures and the potential for afternoon thunderstorms. While extreme heat is not anticipated, brief periods of high temperatures near 90°F (32°C) could cause discomfort, particularly for those engaging in outdoor activities. Afternoon storms may bring localized heavy rain and lightning, posing risks to outdoor events and travel.

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