Weather
Hilo, Hawaii
Current Conditions
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Almanac
Average High: 84°
Average Low: 69°
Record high/year: 87° (1995)
Record low/year: 65° (1979)
Sunrise: 6:02 AM
Sunset: 6:43 PM
Detailed History
Sun and Moon
Sunrise: 06:02 AM (HST)
Moon Rise: 10:03 PM (HST)
Sunset: 06:43 PM (HST)
Moon Set: 10:31 AM (HST)
Moon Phase
Next 12 Hours
Forecast data from the National Digital Forecast Database
5-Day Forecast
Forecast for Big Island North and East
Rest of Today
Partly sunny with scattered showers. Highs around 84 at the shore to around 73 at 4000 feet. East winds around 10 mph with higher gusts. Chance of rain 50 percent.
Tonight
Mostly cloudy with showers likely. Lows around 67 at the shore to around 54 at 4000 feet. Northeast winds around 10 mph shifting to the northwest in the late evening and overnight. Gusts up to 25 mph. Chance of rain 70 percent.
Friday
Partly sunny with scattered showers. Highs around 82 at the shore to around 72 at 4000 feet. East winds around 10 mph with higher gusts. Chance of rain 50 percent.
Friday Night
Mostly cloudy. Scattered showers in the evening... then showers likely after midnight. Lows 51 to 74. Northeast winds around 10 mph shifting to the northwest up to 10 mph in the late evening and overnight. Gusts up to 25 mph. Chance of rain 70 percent.
Saturday
Partly sunny with scattered showers. Highs 65 to 85. Northwest winds up to 10 mph shifting to the east around 10 mph in the late morning and afternoon. Gusts up to 25 mph. Chance of rain 50 percent.
Saturday Night
Mostly cloudy with scattered showers. Lows 52 to 74. Northwest winds up to 10 mph. Chance of rain 50 percent.
Sunday
Partly sunny with scattered showers. Highs 67 to 86. Northwest winds up to 10 mph shifting to the east around 10 mph in the late morning and afternoon. Chance of rain 50 percent.
Sunday Night
Mostly cloudy with scattered showers. Lows 51 to 74. Northwest winds up to 10 mph. Chance of rain 50 percent.
Monday
Partly sunny with scattered showers. Highs 66 to 85. Northwest winds up to 10 mph shifting to the east around 10 mph in the late morning and afternoon. Chance of rain 50 percent.
Monday Night
Mostly cloudy with scattered showers. Lows 51 to 73. Northwest winds up to 10 mph. Chance of rain 50 percent.
Tuesday
Partly sunny with scattered showers. Highs 66 to 86. Northwest winds up to 10 mph shifting to the east around 10 mph in the late morning and afternoon. Chance of rain 50 percent.
Tuesday Night
Mostly cloudy with showers likely. Lows 51 to 73. Northwest winds up to 10 mph. Chance of rain 70 percent.
Wednesday
Partly sunny with scattered showers. Highs 66 to 86. Northwest winds up to 10 mph shifting to the east around 10 mph in the late morning and afternoon. Chance of rain 50 percent.
Personal Weather Stations
Personal Weather Stations [Add your weather station!]
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Location: MesoWest WAIAKEA EXPERIMENTAL STATION NEA HI US, Hilo, HI Updated: 7:05 AM HST |
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| Temperature: 69 °F | Dew Point: - | Humidity: - | Wind: Calm | Pressure: - | Hourly Precipitation: 0.00 in | Heat Index: - | Historical Graphs |
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Location: Hawaiian Shores, Pahoa, HI Updated: 10:41 AM HST |
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| Temperature: 91.4 °F | Dew Point: 71 °F | Humidity: 51% | Wind: NE at 8.3 mph | Pressure: 29.86 in | Hourly Precipitation: 0.00 in | Heat Index: 98 °F | Historical Graphs |
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Location: RAWS HAKALAU HI US, Papaikou, HI Updated: 7:45 AM HST |
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| Temperature: 54 °F | Dew Point: 53 °F | Humidity: 98% | Wind: NW at 1 mph | Pressure: - | Hourly Precipitation: 0.00 in | Heat Index: - | Historical Graphs |
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Location: Volcano Golf Country Club, QTH of KH6SX, HI Updated: 10:42 AM HST |
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| Temperature: 68.8 °F | Dew Point: 51 °F | Humidity: 53% | Wind: NNE at 11.0 mph | Pressure: 30.11 in | Hourly Precipitation: 0.00 in | Heat Index: - | Historical Graphs |
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Location: RAWS KEAUMO HI US, Volcano, HI Updated: 7:34 AM HST |
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| Temperature: 56 °F | Dew Point: 46 °F | Humidity: 70% | Wind: NNW at 9 mph | Pressure: - | Hourly Precipitation: 0.00 in | Heat Index: - | Historical Graphs |
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MSN Maps of: |
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| Temperature | Dew Point | Humidity | Wind | Pressure | Hourly Precipitation | - | |
NWS Forecaster Discussion
723 fxhw60 phfo 212009 afdhfo Area forecast discussion National Weather Service Honolulu HI 1010 am HST Thursday Aug 21 2008 Synopsis... high pressure to the north will maintain moderate to fresh trade winds over the islands through the forecast period. The trades will bring clouds and showers that will affect mainly windward and Mauka areas...with a few reaching the Lee areas of the smaller islands at times. && Discussion... currently an east to West Ridge of high pressure lies along 34n... about 800 miles north of Kauai...with an embedded 1027 mb high centered north-northwest of the islands near 34n 163w. Moderate trade winds prevail over open water south of this ridge...as highlighted by this morning/S Quikscat pass...which showed 15 to 20 knots east-northeast winds. As usual...these winds are subject to local accelerations and decelerations over and near the islands...due to terrain and heating. Water vapor imagery shows relatively dry air aloft over the islands...but overnight soundings showed a deep mixed layer...with the inversion base as high as 10 kft in Lihue/S sampling. Showery cloud clusters are seen moving along with the trade flow...with one such cluster moving over Oahu as of this writing. Additional shower areas are seen upstream...in the form of open-celled cumulus elements...thus trade showers remain throughout the forecast. Little change to the ongoing forecast philosophy...with high pressure north of the islands persisting through the forecast period. The surface ridge axis will remain nearly stationary in its current position into Saturday...after which it/S eastern extent...far northeast of the islands...will be shunted slightly southward by a front. The high centered nearly due north of the islands now will take up a position to the northwest in response... with little expected change in local wind speed or direction. High pressure will reestablish/reorganize far northeast of the islands early next week as the front weakens...thereby maintaining at least a moderate trade flow through the forecast period. A weak middle- and upper-level low/trough...currently east of the islands along 146w/147w...will track westward and pass over the islands around Saturday. This feature may be responsible for our current higher than normal inversion height...and will act to keep the inversion height slightly elevated into the weekend. Deep moisture is lacking...so although trade showers may be a little more active in the short term...their total rainfall will be limited as they track steadily west...and they will be capped. Overall...seasonable weather in the works...and typical August trade wind weather will prevail. && Hfo watches/warnings/advisories... none. && $$ Birchard