National Weather Service United States Department of Commerce

Flash flooding threat continues from the Great Basin across the southern Plains

The wet pattern in place will continue from the Great Basin across the central and southern Rockies into the southern Plains into Wednesday. Ample monsoonal moisture with a frontal boundary in place will allow for shower and thunderstorm development with locally heavy rainfall at times. The heavier showers could lead to flash flooding in some areas, especially urban areas and burn scars.
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Hazardous Weather Conditions

Current Conditions

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Marathon FL

7 Day Forecast

For More Weather Information:

Key West, FL Local Forecast Office

Overnight

Slight Chance Thunderstorms Chance for Measurable Precipitation 20%

Slight Chc
Thunderstorms

Low: 82 °F

Wednesday

Slight Chance Thunderstorms Chance for Measurable Precipitation 20%

Slight Chc
Thunderstorms

High: 94 °F

Wednesday
Night

Slight Chance Thunderstorms Chance for Measurable Precipitation 20%

Slight Chc
Thunderstorms

Low: 81 °F

Thursday

Chance Showers Chance for Measurable Precipitation 30%

Chance
Showers

High: 92 °F

Thursday
Night

Chance Showers Chance for Measurable Precipitation 30%

Chance
Showers

Low: 81 °F

Friday

Chance Showers Chance for Measurable Precipitation 30%

Chance
Showers

High: 92 °F

Friday
Night

Chance Showers Chance for Measurable Precipitation 30%

Chance
Showers

Low: 81 °F

Saturday

Chance Thunderstorms Chance for Measurable Precipitation 40%

Chance
Thunderstorms

High: 92 °F

Saturday
Night

Chance Thunderstorms Chance for Measurable Precipitation 40%

Chance
Thunderstorms

Low: 81 °F

Detailed Forecast

  • Overnight A slight chance of showers and thunderstorms. Mostly cloudy, with a low around 82. Calm wind. Chance of precipitation is 20%.
  • Wednesday A slight chance of showers and thunderstorms. Partly sunny, with a high near 94. Calm wind becoming southwest around 5 mph. Chance of precipitation is 20%.
  • Wednesday Night A slight chance of showers and thunderstorms. Mostly cloudy, with a low around 81. West wind around 5 mph becoming calm in the evening. Chance of precipitation is 20%.
  • Thursday A chance of showers and thunderstorms. Mostly sunny, with a high near 92. Calm wind becoming south around 5 mph. Chance of precipitation is 30%.
  • Thursday Night A chance of showers and thunderstorms. Partly cloudy, with a low around 81. Southeast wind around 5 mph. Chance of precipitation is 30%.
  • Friday A chance of showers and thunderstorms. Partly sunny, with a high near 92. Chance of precipitation is 30%.
  • Friday Night A chance of showers and thunderstorms. Partly cloudy, with a low around 81. Chance of precipitation is 30%.
  • Saturday A chance of showers and thunderstorms. Partly sunny, with a high near 92. Chance of precipitation is 40%.
  • Saturday Night A chance of showers and thunderstorms. Partly cloudy, with a low around 81. Chance of precipitation is 40%.
  • Sunday A chance of showers and thunderstorms. Partly sunny, with a high near 92. Chance of precipitation is 40%.
  • Sunday Night A chance of showers and thunderstorms. Mostly cloudy, with a low around 81. Chance of precipitation is 40%.
  • Monday A chance of showers and thunderstorms. Partly sunny, with a high near 92. Chance of precipitation is 40%.
  • Monday Night A chance of showers and thunderstorms. Partly cloudy, with a low around 81. Chance of precipitation is 30%.
  • Tuesday A chance of showers and thunderstorms. Mostly sunny, with a high near 92. Chance of precipitation is 30%.