Weather in Grape Island, WV
Grape Island, Sunday, 9 August, 00:34
Overcast. Feels like 74°. High 88°, low 68°.
Monthly outlook for Grape Island, WV: average high 82.6°, average low 61.4°. That is 0.3° above the climate normal for August. Precipitation is expected on 8 days (about 4.1 inches), against a normal of 6 days and 2.0 inches. The warmest day looks like 10 August (91.3°), the coolest 22 August (53°).
Ten-day blocks vs climate normal
| Period | Forecast high | Normal | Difference |
|---|---|---|---|
| 9 August – 18 August | 83.2° | 82.2° | +0.6° |
| 19 August – 28 August | 81.6° | 82.1° | -0.3° |
| 29 August – 7 September | at normal | 80.7° | — |
August records over 66 years
Climate normals and records are computed from the nearest reference point — Marietta (14 mi).
0.52
Grape Island, Monday, 10 August
Heavy rain. High 91°, low 66°.
0.52Grape Island, Tuesday, 11 August
Heavy rain. High 82°, low 66°.
2.35Grape Island, Wednesday, 12 August
Heavy rain. High 83°, low 65°.
0.11Grape Island, Thursday, 13 August
Light rain. High 80°, low 62°.
0Grape Island, Friday, 14 August
Overcast. High 79°, low 58°.
0Grape Island, Saturday, 15 August
Overcast. High 79°, low 56°.
0
Grape Island, Sunday, 16 August
Mostly clear. High 83°, low 56°.
0Grape Island, Monday, 17 August
Overcast. High 84°, low 63°.
0
Grape Island, Tuesday, 18 August
Partly cloudy. High 84°, low 60°.
0.06Grape Island, Wednesday, 19 August
Light rain. High 87°, low 63°.
0.1Grape Island, Thursday, 20 August
Light rain. High 68°, low 58°.
0.01Grape Island, Friday, 21 August
Light rain. High 77°, low 56°.
0.01Grape Island, Saturday, 22 August
Light rain. High 84°, low 53°.
0.26Grape Island, Sunday, 23 August
Light rain. High 89°, low 65°.
0Grape Island, Monday, 24 August
Partly cloudy. High 84°, low 67°.
0.07Grape Island, Tuesday, 25 August
Climate normal for this date — 60-year average.
0.09Grape Island, Wednesday, 26 August
Climate normal for this date — 60-year average.
0.13
Grape Island, Thursday, 27 August
Climate normal for this date — 60-year average.
0.13Grape Island, Friday, 28 August
Climate normal for this date — 60-year average.
0.1Grape Island, Saturday, 29 August
Climate normal for this date — 60-year average.
0.1Grape Island, Sunday, 30 August
Climate normal for this date — 60-year average.
0.11Grape Island, Monday, 31 August
Climate normal for this date — 60-year average.
0.09Grape Island, Tuesday, 1 September
Climate normal for this date — 60-year average.
0.11Grape Island, Wednesday, 2 September
Climate normal for this date — 60-year average.
0.09Grape Island, Thursday, 3 September
Climate normal for this date — 60-year average.
0.07Grape Island, Friday, 4 September
Climate normal for this date — 60-year average.
0.11Grape Island, Saturday, 5 September
Climate normal for this date — 60-year average.
0.11Grape Island, Sunday, 6 September
Climate normal for this date — 60-year average.
0.08Grape 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 Grape Island, WV 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 Grape Island, WV 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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