Weather in Hess Island, PA
Hess Island, Sunday, 9 August, 03:32
Mostly clear. Feels like 71°. High 84°, low 70°.
Monthly outlook for Hess Island, PA: average high 83.5°, average low 62°. That is 2.6° above the climate normal for August. Precipitation is expected on 3 days (about 1.0 inches), against a normal of 6 days and 2.0 inches. The warmest day looks like 24 August (92.2°), the coolest 16 August (49.7°).
Ten-day blocks vs climate normal
| Period | Forecast high | Normal | Difference |
|---|---|---|---|
| 9 August – 18 August | 80.1° | 79.5° | +0.3° |
| 19 August – 28 August | 89.2° | 78.2° | +6.1° |
| 29 August – 7 September | at normal | 76.6° | — |
August records over 66 years
Climate normals and records are computed from the nearest reference point — Conyngham (8 mi).
0
Hess Island, Monday, 10 August
Overcast. High 83°, low 68°.
0.53
Hess Island, Tuesday, 11 August
Heavy rain. High 86°, low 66°.
0.02Hess Island, Wednesday, 12 August
Light rain. High 83°, low 65°.
0.02Hess Island, Thursday, 13 August
Light rain. High 79°, low 58°.
0
Hess Island, Friday, 14 August
Partly cloudy. High 71°, low 51°.
0
Hess Island, Saturday, 15 August
Clear. High 75°, low 50°.
0Hess Island, Sunday, 16 August
Overcast. High 77°, low 50°.
0Hess Island, Monday, 17 August
Partly cloudy. High 80°, low 59°.
0Hess Island, Tuesday, 18 August
Partly cloudy. High 83°, low 60°.
0Hess Island, Wednesday, 19 August
Partly cloudy. High 85°, low 63°.
0Hess Island, Thursday, 20 August
Partly cloudy. High 87°, low 62°.
0.29Hess Island, Friday, 21 August
Rain. High 90°, low 69°.
0
Hess Island, Saturday, 22 August
Mostly clear. High 88°, low 67°.
0Hess Island, Sunday, 23 August
Clear. High 92°, low 63°.
0.11Hess Island, Monday, 24 August
Light rain. High 92°, low 72°.
0.07Hess Island, Tuesday, 25 August
Climate normal for this date — 60-year average.
0.06Hess Island, Wednesday, 26 August
Climate normal for this date — 60-year average.
0.16
Hess Island, Thursday, 27 August
Climate normal for this date — 60-year average.
0.21Hess Island, Friday, 28 August
Climate normal for this date — 60-year average.
0.19Hess Island, Saturday, 29 August
Climate normal for this date — 60-year average.
0.06Hess Island, Sunday, 30 August
Climate normal for this date — 60-year average.
0.08Hess Island, Monday, 31 August
Climate normal for this date — 60-year average.
0.18Hess Island, Tuesday, 1 September
Climate normal for this date — 60-year average.
0.12Hess Island, Wednesday, 2 September
Climate normal for this date — 60-year average.
0.1Hess Island, Thursday, 3 September
Climate normal for this date — 60-year average.
0.15Hess Island, Friday, 4 September
Climate normal for this date — 60-year average.
0.09Hess Island, Saturday, 5 September
Climate normal for this date — 60-year average.
0.18Hess Island, Sunday, 6 September
Climate normal for this date — 60-year average.
0.1Hess Island, 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 Hess Island, PA 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 Hess Island, PA 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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