Weather in Portlock, HI
Portlock, Thursday, 8 October, 10:20
Light rain. Feels like 86°. High 80°, low 78°.
Monthly outlook for Portlock, HI: average high 78.6°, average low 77.2°. That is 1.2° below the climate normal for October. Precipitation is expected on 12 days (about 2.5 inches), against a normal of 4 days and 0.7 inches. The warmest day looks like 9 October (80.9°), the coolest 20 October (76.4°).
Ten-day blocks vs climate normal
| Period | Forecast high | Normal | Difference |
|---|---|---|---|
| 8 October – 17 October | 78.9° | 80.9° | -1.1° |
| 18 October – 27 October | 77.9° | 80.3° | -1.3° |
| 28 October – 6 November | at normal | 79.6° | — |
October records over 66 years
Climate normals and records are computed from the nearest reference point — Honolulu (10 mi).
0.11Portlock, Friday, 9 October
Light rain. High 81°, low 78°.
0.02Portlock, Saturday, 10 October
Light rain. High 79°, low 77°.
0
Portlock, Sunday, 11 October
Mostly clear. High 78°, low 77°.
0.13Portlock, Monday, 12 October
Light rain. High 79°, low 77°.
0.8Portlock, Tuesday, 13 October
Rain. High 78°, low 77°.
0.44Portlock, Wednesday, 14 October
Rain. High 79°, low 77°.
0.14Portlock, Thursday, 15 October
Light rain. High 79°, low 78°.
0.08Portlock, Friday, 16 October
Light rain. High 78°, low 77°.
0.21Portlock, Saturday, 17 October
Light rain. High 79°, low 77°.
0.06Portlock, Sunday, 18 October
Light rain. High 78°, low 77°.
0.06Portlock, Monday, 19 October
Light rain. High 78°, low 77°.
0.04Portlock, Tuesday, 20 October
Light rain. High 78°, low 76°.
0.07Portlock, Wednesday, 21 October
Light rain. High 78°, low 77°.
0
Portlock, Thursday, 22 October
Overcast. High 78°, low 77°.
0Portlock, Friday, 23 October
Overcast. High 77°, low 76°.
0.06
Portlock, Saturday, 24 October
Climate normal for this date — 60-year average.
0.06Portlock, Sunday, 25 October
Climate normal for this date — 60-year average.
0.05Portlock, Monday, 26 October
Climate normal for this date — 60-year average.
0.04Portlock, Tuesday, 27 October
Climate normal for this date — 60-year average.
0.06Portlock, Wednesday, 28 October
Climate normal for this date — 60-year average.
0.06Portlock, Thursday, 29 October
Climate normal for this date — 60-year average.
0.09Portlock, Friday, 30 October
Climate normal for this date — 60-year average.
0.07Portlock, Saturday, 31 October
Climate normal for this date — 60-year average.
0.06Portlock, Sunday, 1 November
Climate normal for this date — 60-year average.
0.12Portlock, Monday, 2 November
Climate normal for this date — 60-year average.
0.05Portlock, Tuesday, 3 November
Climate normal for this date — 60-year average.
0.11Portlock, Wednesday, 4 November
Climate normal for this date — 60-year average.
0.09Portlock, Thursday, 5 November
Climate normal for this date — 60-year average.
0.07Portlock, Friday, 6 November
Climate normal for this date — 60-year average.
About the monthly outlook
How accurate is a 30-day forecast?
The first 16 days come from weather models — reliable for the first 3–5 days and progressively less so after that. Days 17 through 30 for Portlock, HI are built from the climate normal, the 60-year average, so they show typical weather for those dates rather than a specific forecast.
What does "above normal" mean?
We compare the forecast against the climate normal for those exact calendar days, computed from 60 years of observations. The deviation shows how much the coming month differs from a typical one.
Where do the 66-year records come from?
They are real temperature extremes recorded in Portlock, HI since 1960: the highest and lowest reading for each calendar date, with the year it happened.
How often is it updated?
The forecast portion refreshes every hour; the climate portion is based on long-term data and stays stable.
Sun and moon today
Weather history
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