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Heavy rain and flash flooding possible in portions of the Southwest this weekend

An upper-level low in the Southwest U.S. will act as a trigger for thunderstorms this weekend. The area of greatest concern is in New Mexico, southeast Utah and portions of southern Colorado. Storms will be slow moving and could bring several rounds of rain to the same areas. Rainfall amounts may exceed 3 inches in localized areas. Flash Flood Watches are in effect. Read More >

Hazardous Weather Conditions

Current conditions at

The Florida Keys - Marathon International Airport (KMTH)

Lat: 24.73°NLon: 81.05°WElev: 0ft.

Mostly Cloudy

85°F

29°C

Humidity 82%
Wind Speed NE 8 mph
Barometer 29.96 in (1014.3 mb)
Dewpoint 79°F (26°C)
Visibility 10.00 mi
Heat Index98°F (37°C)
Last update 20 Aug 7:53 am EDT
Extended Forecast for

23 Miles NNW Long Key FL

  • Today

    Today: A slight chance of showers before noon, then showers likely and possibly a thunderstorm between noon and 5pm, then a slight chance of showers and thunderstorms after 5pm.  Mostly cloudy, with a high near 87. East wind 8 to 15 mph, with gusts as high as 20 mph.  Chance of precipitation is 60%. New rainfall amounts between a quarter and half of an inch possible.

    Slight Chance
    Showers then
    Showers
    Likely

    High: 87 °F

  • Tonight

    Tonight: A 10 percent chance of showers and thunderstorms before 8pm.  Mostly cloudy, with a low around 82. East wind 8 to 15 mph, with gusts as high as 20 mph.

    Slight Chance
    T-storms then
    Mostly Cloudy

    Low: 82 °F

  • Monday

    Monday: A 20 percent chance of showers and thunderstorms after 2pm.  Mostly sunny, with a high near 90. Heat index values as high as 101. East wind 10 to 13 mph.

    Mostly Sunny
    then Slight
    Chance
    T-storms

    High: 90 °F

  • Monday
    Night

    Monday Night: A slight chance of showers and thunderstorms before 8pm, then a slight chance of showers and thunderstorms after 11pm.  Mostly cloudy, with a low around 80. East wind 9 to 11 mph.  Chance of precipitation is 20%.

    Slight Chance
    T-storms

    Low: 80 °F

  • Tuesday

    Tuesday: A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 2pm.  Mostly cloudy, with a high near 87. East wind 5 to 9 mph.  Chance of precipitation is 60%.

    Chance
    T-storms then
    Showers
    Likely

    High: 87 °F

  • Tuesday
    Night

    Tuesday Night: Showers likely and possibly a thunderstorm before 8pm, then a chance of showers and thunderstorms after 8pm.  Mostly cloudy, with a low around 80. Southeast wind around 7 mph.  Chance of precipitation is 60%.

    Showers
    Likely then
    Chance
    T-storms

    Low: 80 °F

  • Wednesday

    Wednesday: Showers and thunderstorms likely.  Mostly cloudy, with a high near 88. Southeast wind 5 to 9 mph.  Chance of precipitation is 70%.

    T-storms
    Likely

    High: 88 °F

  • Wednesday
    Night

    Wednesday Night: A 50 percent chance of showers and thunderstorms.  Mostly cloudy, with a low around 80. Southeast wind 7 to 9 mph.

    Chance
    T-storms

    Low: 80 °F

  • Thursday

    Thursday: Showers and thunderstorms likely.  Mostly cloudy, with a high near 89. South wind 8 to 11 mph.  Chance of precipitation is 60%.

    T-storms
    Likely

    High: 89 °F

Detailed Forecast

Today
A slight chance of showers before noon, then showers likely and possibly a thunderstorm between noon and 5pm, then a slight chance of showers and thunderstorms after 5pm. Mostly cloudy, with a high near 87. East wind 8 to 15 mph, with gusts as high as 20 mph. Chance of precipitation is 60%. New rainfall amounts between a quarter and half of an inch possible.
Tonight
A 10 percent chance of showers and thunderstorms before 8pm. Mostly cloudy, with a low around 82. East wind 8 to 15 mph, with gusts as high as 20 mph.
Monday
A 20 percent chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 90. Heat index values as high as 101. East wind 10 to 13 mph.
Monday Night
A slight chance of showers and thunderstorms before 8pm, then a slight chance of showers and thunderstorms after 11pm. Mostly cloudy, with a low around 80. East wind 9 to 11 mph. Chance of precipitation is 20%.
Tuesday
A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 2pm. Mostly cloudy, with a high near 87. East wind 5 to 9 mph. Chance of precipitation is 60%.
Tuesday Night
Showers likely and possibly a thunderstorm before 8pm, then a chance of showers and thunderstorms after 8pm. Mostly cloudy, with a low around 80. Southeast wind around 7 mph. Chance of precipitation is 60%.
Wednesday
Showers and thunderstorms likely. Mostly cloudy, with a high near 88. Southeast wind 5 to 9 mph. Chance of precipitation is 70%.
Wednesday Night
A 50 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 80. Southeast wind 7 to 9 mph.
Thursday
Showers and thunderstorms likely. Mostly cloudy, with a high near 89. South wind 8 to 11 mph. Chance of precipitation is 60%.
Thursday Night
A 40 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 80.
Friday
Showers and thunderstorms likely. Mostly cloudy, with a high near 90. Chance of precipitation is 60%.
Friday Night
A 30 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 80.
Saturday
Showers and thunderstorms likely. Mostly cloudy, with a high near 89. Chance of precipitation is 60%.
Click Map For Forecast
Point Forecast:
23 Miles NNW Long Key FL
 25.14°N 80.95°W
6:02 am EDT Aug 20, 2017
8am EDT Aug 20, 2017-6pm EDT Aug 26, 2017
 
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