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

Hilo, Hilo International Airport (PHTO)

Lat: 19.72°NLon: 155.06°WElev: 36ft.

Mostly Cloudy

80°F

27°C

Humidity 90%
Wind Speed N 12 mph
Barometer 29.85 in (1010.6 mb)
Dewpoint 77°F (25°C)
Visibility 10.00 mi
Heat Index86°F (30°C)
Last update 23 Jul 6:53 am HST
Extended Forecast for

Hilo International Airport HI

Flash Flood Watch until July 24, 06:00pm
High Surf Warning until July 24, 06:00am
Click here for hazard details and duration
Flash Flood Watch
High Surf Warning
  •  
    Flash Flood Watch until July 24, 06:00pm
    High Surf Warning until July 24, 06:00am

    NOW: Multiple
    hazards in effect

    Click HERE for Details

  • Today

    Today: Tropical storm conditions expected. Rain and possibly a thunderstorm. Some of the storms could produce heavy rainfall.  High near 81. North wind 29 to 39 mph becoming southeast. Winds could gust as high as 55 mph.  Chance of precipitation is 100%. New rainfall amounts in excess of 4 inches possible.

    Tropical
    Storm
    Conditions
    Expected

    High: 81 °F

  • Tonight

    Tonight: Tropical storm conditions expected. Rain and possibly a thunderstorm. Some of the storms could produce heavy rainfall.  Low around 73. Southeast wind 29 to 39 mph decreasing to 17 to 22 mph. Winds could gust as high as 55 mph.  Chance of precipitation is 100%. New rainfall amounts between 3 and 4 inches possible.

    Tropical
    Storm
    Conditions
    Expected

    Low: 73 °F

  • Sunday

    Sunday: Frequent showers. The rain could be heavy at times.  High near 83. Breezy, with a southeast wind 15 to 21 mph, with gusts as high as 37 mph.  Chance of precipitation is 80%. New precipitation amounts between 3 and 4 inches possible.

    Heavy Rain
    and Breezy

    High: 83 °F

  • Sunday
    Night

    Sunday Night: Showers likely. The rain could be heavy at times.  Mostly cloudy, with a low around 72. Breezy, with a southeast wind 13 to 16 mph, with gusts as high as 20 mph.  Chance of precipitation is 60%. New precipitation amounts between 1 and 2 inches possible.

    Heavy Rain
    and Breezy

    Low: 72 °F

  • Monday

    Monday: Showers likely. The rain could be heavy at times.  Mostly cloudy, with a high near 83. Southeast wind 9 to 14 mph.  Chance of precipitation is 60%. New precipitation amounts between a half and three quarters of an inch possible.

    Heavy Rain

    High: 83 °F

  • Monday
    Night

    Monday Night: Showers likely, mainly before midnight.  Widespread haze before midnight. Mostly cloudy, with a low around 68. Southeast wind 5 to 8 mph becoming south after midnight.  Chance of precipitation is 60%. New precipitation amounts between a tenth and quarter of an inch possible.

    Showers
    Likely

    Low: 68 °F

  • Tuesday

    Tuesday: Scattered showers.  Partly sunny, with a high near 84. East wind 9 to 11 mph.  Chance of precipitation is 50%.

    Scattered
    Showers

    High: 84 °F

  • Tuesday
    Night

    Tuesday Night: Showers likely, mainly after midnight.  Mostly cloudy, with a low around 68. Light east wind.  Chance of precipitation is 70%.

    Scattered
    Showers then
    Showers
    Likely

    Low: 68 °F

Detailed Forecast

Today
Tropical storm conditions expected. Rain and possibly a thunderstorm. Some of the storms could produce heavy rainfall. High near 81. North wind 29 to 39 mph becoming southeast. Winds could gust as high as 55 mph. Chance of precipitation is 100%. New rainfall amounts in excess of 4 inches possible.
Tonight
Tropical storm conditions expected. Rain and possibly a thunderstorm. Some of the storms could produce heavy rainfall. Low around 73. Southeast wind 29 to 39 mph decreasing to 17 to 22 mph. Winds could gust as high as 55 mph. Chance of precipitation is 100%. New rainfall amounts between 3 and 4 inches possible.
Sunday
Frequent showers. The rain could be heavy at times. High near 83. Breezy, with a southeast wind 15 to 21 mph, with gusts as high as 37 mph. Chance of precipitation is 80%. New precipitation amounts between 3 and 4 inches possible.
Sunday Night
Showers likely. The rain could be heavy at times. Mostly cloudy, with a low around 72. Breezy, with a southeast wind 13 to 16 mph, with gusts as high as 20 mph. Chance of precipitation is 60%. New precipitation amounts between 1 and 2 inches possible.
Monday
Showers likely. The rain could be heavy at times. Mostly cloudy, with a high near 83. Southeast wind 9 to 14 mph. Chance of precipitation is 60%. New precipitation amounts between a half and three quarters of an inch possible.
Monday Night
Showers likely, mainly before midnight. Widespread haze before midnight. Mostly cloudy, with a low around 68. Southeast wind 5 to 8 mph becoming south after midnight. Chance of precipitation is 60%. New precipitation amounts between a tenth and quarter of an inch possible.
Tuesday
Scattered showers. Partly sunny, with a high near 84. East wind 9 to 11 mph. Chance of precipitation is 50%.
Tuesday Night
Showers likely, mainly after midnight. Mostly cloudy, with a low around 68. Light east wind. Chance of precipitation is 70%.
Wednesday
Showers likely, mainly before noon. Partly sunny, with a high near 84. Light east wind becoming northeast 8 to 13 mph in the morning. Chance of precipitation is 60%.
Wednesday Night
Scattered showers. Mostly cloudy, with a low around 68. Northeast wind 7 to 13 mph becoming west in the evening. Chance of precipitation is 50%.
Thursday
Scattered showers. Partly sunny, with a high near 84. Breezy, with a west wind 7 to 15 mph becoming northeast in the morning. Winds could gust as high as 21 mph. Chance of precipitation is 50%.
Thursday Night
Showers likely. Mostly cloudy, with a low around 68. Breezy, with a northeast wind 7 to 15 mph becoming west in the evening. Winds could gust as high as 21 mph. Chance of precipitation is 60%.
Friday
Scattered showers. Partly sunny, with a high near 84. Breezy, with a west wind 7 to 15 mph becoming northeast in the morning. Winds could gust as high as 21 mph. Chance of precipitation is 50%.
Click Map For Forecast
Point Forecast:
Hilo International Airport HI
 19.72°N 155.09°W (Elev. 95 ft)
6:00 am HST Jul 23, 2016
7am HST Jul 23, 2016-6pm HST Jul 29, 2016
 
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Additional Resources

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