Notice of NWS' New Version of Forecast
A new version of Forecast is coming soon!
Click here to visit the new site for details.

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

Hilo, Hilo International Airport (PHTO)

Lat: 19.72°NLon: 155.06°WElev: 36ft.

Mostly Cloudy

75°F

24°C

Humidity 88%
Wind Speed SW 5 mph
Barometer 30.01 in (1015.9 mb)
Dewpoint 71°F (22°C)
Visibility 10.00 mi
Last update 19 Aug 9:53 pm HST
Extended Forecast for

Hilo HI

  • Tonight

    Tonight: Showers likely.  Mostly cloudy, with a low around 68. West wind 3 to 5 mph.  Chance of precipitation is 70%. New precipitation amounts of less than a tenth of an inch possible.

    Showers
    Likely

    Low: 68 °F

  • Sunday

    Sunday: Showers likely, with thunderstorms also possible after noon.  Mostly cloudy, with a high near 85. Calm wind becoming east northeast around 6 mph.  Chance of precipitation is 70%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    Showers
    Likely

    High: 85 °F

  • Sunday
    Night

    Sunday Night: Occasional showers and possibly a thunderstorm.  Low around 69. Calm wind.  Chance of precipitation is 90%. New precipitation amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    Showers

    Low: 69 °F

  • Monday

    Monday: Occasional showers, with thunderstorms also possible after noon.  High near 86. Light and variable wind becoming east northeast 5 to 10 mph.  Chance of precipitation is 80%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    Showers then
    Scattered
    Showers

    High: 86 °F

  • Monday
    Night

    Monday Night: Showers likely and possibly a thunderstorm, then occasional showers after 8pm.  Low around 69. Light and variable wind.  Chance of precipitation is 80%. New precipitation amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    Showers

    Low: 69 °F

  • Tuesday

    Tuesday: Showers likely, with thunderstorms also possible after noon.  Mostly cloudy, with a high near 83. Calm wind becoming east 5 to 8 mph in the afternoon.  Chance of precipitation is 70%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    Showers
    Likely

    High: 83 °F

  • Tuesday
    Night

    Tuesday Night: Occasional showers.  Low around 69. West northwest wind around 5 mph becoming calm  in the evening.  Chance of precipitation is 80%.

    Showers

    Low: 69 °F

  • Wednesday

    Wednesday: Occasional showers, mainly before noon.  High near 86. Light and variable wind becoming east northeast 5 to 9 mph in the afternoon.  Chance of precipitation is 80%.

    Showers then
    Scattered
    Showers

    High: 86 °F

  • Wednesday
    Night

    Wednesday Night: Scattered showers.  Mostly cloudy, with a low around 69. North northwest wind around 6 mph becoming calm.  Chance of precipitation is 50%.

    Scattered
    Showers

    Low: 69 °F

Detailed Forecast

Tonight
Showers likely. Mostly cloudy, with a low around 68. West wind 3 to 5 mph. Chance of precipitation is 70%. New precipitation amounts of less than a tenth of an inch possible.
Sunday
Showers likely, with thunderstorms also possible after noon. Mostly cloudy, with a high near 85. Calm wind becoming east northeast around 6 mph. Chance of precipitation is 70%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Sunday Night
Occasional showers and possibly a thunderstorm. Low around 69. Calm wind. Chance of precipitation is 90%. New precipitation amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Monday
Occasional showers, with thunderstorms also possible after noon. High near 86. Light and variable wind becoming east northeast 5 to 10 mph. Chance of precipitation is 80%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Monday Night
Showers likely and possibly a thunderstorm, then occasional showers after 8pm. Low around 69. Light and variable wind. Chance of precipitation is 80%. New precipitation amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Tuesday
Showers likely, with thunderstorms also possible after noon. Mostly cloudy, with a high near 83. Calm wind becoming east 5 to 8 mph in the afternoon. Chance of precipitation is 70%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Tuesday Night
Occasional showers. Low around 69. West northwest wind around 5 mph becoming calm in the evening. Chance of precipitation is 80%.
Wednesday
Occasional showers, mainly before noon. High near 86. Light and variable wind becoming east northeast 5 to 9 mph in the afternoon. Chance of precipitation is 80%.
Wednesday Night
Scattered showers. Mostly cloudy, with a low around 69. North northwest wind around 6 mph becoming calm. Chance of precipitation is 50%.
Thursday
Scattered showers. Mostly sunny, with a high near 86. East northeast wind 5 to 10 mph becoming north in the afternoon. Chance of precipitation is 40%.
Thursday Night
Occasional showers. Low around 69. North wind 5 to 7 mph becoming light and variable. Chance of precipitation is 80%.
Friday
Scattered showers. Partly sunny, with a high near 86. Northeast wind around 7 mph. Chance of precipitation is 50%.
Friday Night
Showers likely. Mostly cloudy, with a low around 69. North northwest wind around 6 mph becoming light and variable in the evening. Chance of precipitation is 60%.
Saturday
Scattered showers. Partly sunny, with a high near 86. Light and variable wind becoming east northeast 5 to 8 mph in the afternoon. Chance of precipitation is 50%.
Click Map For Forecast
Point Forecast:
Hilo HI
 19.7°N 155.09°W (Elev. 217 ft)
4:01 pm HST Aug 19, 2017
10pm HST Aug 19, 2017-6pm HST Aug 26, 2017
 
Get as KML Get as XML

Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database