FPUS52 KKEY 262007 ZFPKEY Zone Forecasts for the Florida Keys National Weather Service Key West FL 407 PM EDT Thu Mar 26 2026 FLZ076>078-271030- Monroe Upper Keys-Monroe Middle Keys-Monroe Lower Keys- Including the communities of Key Largo, Marathon, and Key West 407 PM EDT Thu Mar 26 2026 .TONIGHT...Mostly clear with a slight chance of showers. Lows in the lower 70s. Northeast to east winds 10 to 15 mph. Chance of rain 10 percent. .FRIDAY...Mostly sunny with a slight chance of showers. Highs near 80. Northeast to east winds 10 to 15 mph. Chance of rain 10 percent. .FRIDAY NIGHT...Mostly clear with a slight chance of showers. Lows in the lower 70s. Northeast to east winds 10 to 15 mph, becoming northeast. Chance of rain 20 percent. .SATURDAY...Mostly sunny with a slight chance of showers. Highs near 80. Northeast winds near 10 mph, becoming northeast to east and increasing to 10 to 15 mph. Chance of rain 20 percent. .SATURDAY NIGHT...Mostly clear with a slight chance of showers. Becoming breezy. Northeast to east winds 10 to 15 mph, increasing to 15 to 20 mph. Lows in the lower 70s. Chance of rain 20 percent. .SUNDAY...Mostly clear with a slight chance of showers. Windy. Highs near 80. Chance of rain 20 percent. .SUNDAY NIGHT AND MONDAY...Partly cloudy. A slight chance of showers. Windy. Lows in the lower 70s. Highs in the upper 70s. Chance of rain 20 percent. .MONDAY NIGHT...Partly cloudy in the evening, then becoming mostly cloudy. A slight chance of showers. Windy. Lows in the lower 70s. Chance of rain 10 percent. .TUESDAY...Mostly sunny with a slight chance of showers. Windy at times. Highs in the upper 70s. Chance of rain 20 percent. .TUESDAY NIGHT AND WEDNESDAY...Mostly cloudy. A slight chance of showers. Windy at times. Lows in the lower 70s. Highs near 80. Chance of rain 10 percent. .WEDNESDAY NIGHT...Mostly cloudy with a slight chance of showers. Breezy. Lows in the lower 70s. Chance of rain 20 percent. .THURSDAY...Partly sunny with a slight chance of showers. Breezy. Highs near 80. Chance of rain 10 percent. $$