Dangerous heat and humidity from the central U.S. to East Coast this weekend

Hot and very humid conditions will push the heat index to well over 100 degrees across a large portion of the central and eastern U.S. Excessive Heat Warnings and Heat Advisories are in effect for much of the Plains, Miss. Valley, Midwest, Ohio Valley, Mid-Atlantic and southern states. Be very cautious if you must do outdoor activities in these areas during the afternoon and evening this weekend. Read More >

Current conditions at

Honolulu, Honolulu International Airport (PHNL)

Lat: 21.33°NLon: 157.94°WElev: 10ft.

Overcast

77°F

25°C

Humidity 69%
Wind Speed NE 8 mph
Barometer 29.92 in (1013.2 mb)
Dewpoint 66°F (19°C)
Visibility 10.00 mi
Heat Index79°F (26°C)
Last update 23 Jul 4:53 am HST
Extended Forecast for

Pearl Harbor HI

Flash Flood Watch July 23, 06:00pm until July 25, 06:00am
Click here for hazard details and duration
Flash Flood Watch
  • Overnight

    Overnight: Scattered showers.  Mostly cloudy, with a low around 75. Breezy, with a northeast wind around 17 mph, with gusts as high as 23 mph.  Chance of precipitation is 30%.

    Scattered
    Showers and
    Breezy

    Low: 75 °F

  • Saturday

    Saturday: Scattered showers, mainly before noon.  Partly sunny, with a high near 89. Heat index values as high as 96. Breezy, with a northeast wind 17 to 21 mph.  Chance of precipitation is 40%. New precipitation amounts of less than a tenth of an inch possible.

    Scattered
    Showers and
    Breezy

    High: 89 °F

  • Saturday
    Night

    Saturday Night: Tropical storm conditions expected. Showers likely, mainly after midnight. The rain could be heavy at times.  Mostly cloudy, with a low around 75. Northeast wind 26 to 31 mph.  Chance of precipitation is 60%. New precipitation amounts between a half and three quarters of an inch possible.

    Tropical
    Storm
    Conditions
    Expected

    Low: 75 °F

  • Sunday

    Sunday: Tropical storm conditions expected. Frequent showers before noon, then rain and possibly a thunderstorm after noon. Some of the storms could produce heavy rainfall.  High near 87. North wind 29 to 34 mph becoming east. Winds could gust as high as 48 mph.  Chance of precipitation is 100%. New rainfall amounts between 2 and 3 inches possible.

    Tropical
    Storm
    Conditions
    Expected

    High: 87 °F

  • Sunday
    Night

    Sunday Night: Tropical Storm conditions possible. Frequent showers and possibly a thunderstorm. Some of the storms could produce heavy rainfall.  Low around 75. Chance of precipitation is 100%. New precipitation amounts between 2 and 3 inches possible.

    Tropical
    Storm
    Conditions
    Possible

    Low: 75 °F

  • Monday

    Monday: Showers likely, mainly before noon. The rain could be heavy at times.  Mostly cloudy, with a high near 89. Breezy, with a southeast wind 9 to 17 mph, with gusts as high as 26 mph.  Chance of precipitation is 70%. New precipitation amounts between 1 and 2 inches possible.

    Heavy Rain
    and Breezy
    then
    Scattered
    Showers

    High: 89 °F

  • Monday
    Night

    Monday Night: Scattered showers.  Mostly cloudy, with a low around 75. East wind around 9 mph.  Chance of precipitation is 50%.

    Scattered
    Showers

    Low: 75 °F

  • Tuesday

    Tuesday: Scattered showers, mainly after noon.  Mostly sunny, with a high near 89. East wind 7 to 9 mph.  Chance of precipitation is 30%.

    Scattered
    Showers

    High: 89 °F

  • Tuesday
    Night

    Tuesday Night: Isolated showers after midnight.  Partly cloudy, with a low around 75. Northeast wind around 9 mph.  Chance of precipitation is 20%.

    Mostly Clear
    then Isolated
    Showers

    Low: 75 °F

Detailed Forecast

Overnight
Scattered showers. Mostly cloudy, with a low around 75. Breezy, with a northeast wind around 17 mph, with gusts as high as 23 mph. Chance of precipitation is 30%.
Saturday
Scattered showers, mainly before noon. Partly sunny, with a high near 89. Heat index values as high as 96. Breezy, with a northeast wind 17 to 21 mph. Chance of precipitation is 40%. New precipitation amounts of less than a tenth of an inch possible.
Saturday Night
Tropical storm conditions expected. Showers likely, mainly after midnight. The rain could be heavy at times. Mostly cloudy, with a low around 75. Northeast wind 26 to 31 mph. Chance of precipitation is 60%. New precipitation amounts between a half and three quarters of an inch possible.
Sunday
Tropical storm conditions expected. Frequent showers before noon, then rain and possibly a thunderstorm after noon. Some of the storms could produce heavy rainfall. High near 87. North wind 29 to 34 mph becoming east. Winds could gust as high as 48 mph. Chance of precipitation is 100%. New rainfall amounts between 2 and 3 inches possible.
Sunday Night
Tropical Storm conditions possible. Frequent showers and possibly a thunderstorm. Some of the storms could produce heavy rainfall. Low around 75. Chance of precipitation is 100%. New precipitation amounts between 2 and 3 inches possible.
Monday
Showers likely, mainly before noon. The rain could be heavy at times. Mostly cloudy, with a high near 89. Breezy, with a southeast wind 9 to 17 mph, with gusts as high as 26 mph. Chance of precipitation is 70%. New precipitation amounts between 1 and 2 inches possible.
Monday Night
Scattered showers. Mostly cloudy, with a low around 75. East wind around 9 mph. Chance of precipitation is 50%.
Tuesday
Scattered showers, mainly after noon. Mostly sunny, with a high near 89. East wind 7 to 9 mph. Chance of precipitation is 30%.
Tuesday Night
Isolated showers after midnight. Partly cloudy, with a low around 75. Northeast wind around 9 mph. Chance of precipitation is 20%.
Wednesday
Scattered showers before noon. Mostly sunny, with a high near 89. Breezy, with a northeast wind 8 to 16 mph, with gusts as high as 22 mph. Chance of precipitation is 40%.
Wednesday Night
Mostly clear, with a low around 75. Breezy, with a northeast wind around 16 mph, with gusts as high as 22 mph.
Thursday
Sunny, with a high near 89. Breezy, with a northeast wind 15 to 18 mph, with gusts as high as 25 mph.
Thursday Night
Isolated showers. Mostly clear, with a low around 75. Breezy, with a northeast wind 15 to 18 mph, with gusts as high as 25 mph. Chance of precipitation is 20%.
Friday
Isolated showers. Mostly sunny, with a high near 89. Breezy, with a northeast wind 15 to 18 mph, with gusts as high as 25 mph. Chance of precipitation is 20%.
Click Map For Forecast
Point Forecast:
Pearl Harbor HI
 21.36°N 157.94°W (Elev. 13 ft)
4:52 am HST Jul 23, 2016
5am HST Jul 23, 2016-6pm HST Jul 29, 2016
 
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Additional Resources

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Hourly Weather Forecast

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