Weather in Jamestown, NY
Jamestown, Saturday, 8 August, 23:40
Clear. Feels like 72°. High 82°, low 67°.
Monthly outlook for Jamestown, NY: average high 75.5°, average low 56.9°. That is 0.2° above the climate normal for August. Precipitation is expected on 8 days (about 1.4 inches), against a normal of 7 days and 2.2 inches. The warmest day looks like 9 August (86.3°), the coolest 22 August (47.1°).
Ten-day blocks vs climate normal
| Period | Forecast high | Normal | Difference |
|---|---|---|---|
| 8 August – 17 August | 75.6° | 75.8° | -0.1° |
| 18 August – 27 August | 75.2° | 74.5° | +0.4° |
| 28 August – 6 September | at normal | 73.5° | — |
August records over 66 years
Climate normals and records are computed from the nearest reference point — Sugar Grove (9 mi).
0
Jamestown, Sunday, 9 August
Clear. High 86°, low 66°.
0.06
Jamestown, Monday, 10 August
Light rain. High 75°, low 64°.
0.64Jamestown, Tuesday, 11 August
Heavy rain. High 80°, low 62°.
0.07Jamestown, Wednesday, 12 August
Light rain. High 76°, low 62°.
0.01Jamestown, Thursday, 13 August
Light rain. High 67°, low 52°.
0.05Jamestown, Friday, 14 August
Light rain. High 71°, low 48°.
0Jamestown, Saturday, 15 August
Clear. High 70°, low 50°.
0
Jamestown, Sunday, 16 August
Overcast. High 74°, low 51°.
0Jamestown, Monday, 17 August
Overcast. High 77°, low 56°.
0
Jamestown, Tuesday, 18 August
Mostly clear. High 78°, low 54°.
0.19Jamestown, Wednesday, 19 August
Light rain. High 80°, low 61°.
0.13Jamestown, Thursday, 20 August
Light rain. High 68°, low 58°.
0Jamestown, Friday, 21 August
Clear. High 68°, low 50°.
0Jamestown, Saturday, 22 August
Overcast. High 73°, low 47°.
0.04Jamestown, Sunday, 23 August
Light rain. High 84°, low 62°.
0.11
Jamestown, Monday, 24 August
Climate normal for this date — 60-year average.
0.12Jamestown, Tuesday, 25 August
Climate normal for this date — 60-year average.
0.1Jamestown, Wednesday, 26 August
Climate normal for this date — 60-year average.
0.18Jamestown, Thursday, 27 August
Climate normal for this date — 60-year average.
0.17Jamestown, Friday, 28 August
Climate normal for this date — 60-year average.
0.15Jamestown, Saturday, 29 August
Climate normal for this date — 60-year average.
0.1Jamestown, Sunday, 30 August
Climate normal for this date — 60-year average.
0.15Jamestown, Monday, 31 August
Climate normal for this date — 60-year average.
0.08
Jamestown, Tuesday, 1 September
Climate normal for this date — 60-year average.
0.17Jamestown, Wednesday, 2 September
Climate normal for this date — 60-year average.
0.13Jamestown, Thursday, 3 September
Climate normal for this date — 60-year average.
0.11Jamestown, Friday, 4 September
Climate normal for this date — 60-year average.
0.11Jamestown, Saturday, 5 September
Climate normal for this date — 60-year average.
0.11Jamestown, Sunday, 6 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 Jamestown, NY 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 Jamestown, NY 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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