Weather in Port Heiden, AK
Port Heiden, Sunday, 9 August, 02:48
Overcast. Feels like 47°. High 62°, low 49°.
Monthly outlook for Port Heiden, AK: average high 58.4°, average low 50.3°. That is 1° above the climate normal for August. Precipitation is expected on 10 days (about 2.0 inches), against a normal of 9 days and 1.9 inches. The warmest day looks like 14 August (63.4°), the coolest 21 August (46.6°).
Ten-day blocks vs climate normal
| Period | Forecast high | Normal | Difference |
|---|---|---|---|
| 9 August – 18 August | 59.9° | 57° | +1.6° |
| 19 August – 28 August | 55.9° | 55.9° | +0° |
| 29 August – 7 September | at normal | 54.8° | — |
August records over 66 years
0Port Heiden, Monday, 10 August
Overcast. High 60°, low 49°.
0
Port Heiden, Tuesday, 11 August
Partly cloudy. High 63°, low 50°.
0.1
Port Heiden, Wednesday, 12 August
Light rain. High 58°, low 51°.
0.24Port Heiden, Thursday, 13 August
Light rain. High 60°, low 55°.
0
Port Heiden, Friday, 14 August
Clear. High 63°, low 52°.
0Port Heiden, Saturday, 15 August
Overcast. High 61°, low 51°.
0.32Port Heiden, Sunday, 16 August
Rain. High 56°, low 55°.
0.51Port Heiden, Monday, 17 August
Rain. High 54°, low 51°.
0Port Heiden, Tuesday, 18 August
Overcast. High 61°, low 50°.
0.04Port Heiden, Wednesday, 19 August
Light rain. High 57°, low 50°.
0.13Port Heiden, Thursday, 20 August
Light rain. High 58°, low 51°.
0.13Port Heiden, Friday, 21 August
Light rain. High 56°, low 47°.
0.11Port Heiden, Saturday, 22 August
Light rain. High 56°, low 48°.
0.41Port Heiden, Sunday, 23 August
Rain. High 55°, low 47°.
0.05Port Heiden, Monday, 24 August
Light rain. High 54°, low 50°.
0.14Port Heiden, Tuesday, 25 August
Climate normal for this date — 60-year average.
0.12Port Heiden, Wednesday, 26 August
Climate normal for this date — 60-year average.
0.12Port Heiden, Thursday, 27 August
Climate normal for this date — 60-year average.
0.12Port Heiden, Friday, 28 August
Climate normal for this date — 60-year average.
0.14Port Heiden, Saturday, 29 August
Climate normal for this date — 60-year average.
0.14Port Heiden, Sunday, 30 August
Climate normal for this date — 60-year average.
0.19Port Heiden, Monday, 31 August
Climate normal for this date — 60-year average.
0.16Port Heiden, Tuesday, 1 September
Climate normal for this date — 60-year average.
0.12Port Heiden, Wednesday, 2 September
Climate normal for this date — 60-year average.
0.14Port Heiden, Thursday, 3 September
Climate normal for this date — 60-year average.
0.11Port Heiden, Friday, 4 September
Climate normal for this date — 60-year average.
0.13Port Heiden, Saturday, 5 September
Climate normal for this date — 60-year average.
0.14Port Heiden, Sunday, 6 September
Climate normal for this date — 60-year average.
0.16Port Heiden, Monday, 7 September
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 Port Heiden, AK 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 Port Heiden, AK 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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