Weather in Old Chatham, NY
Old Chatham, Saturday, 8 August, 20:19
Partly cloudy. Feels like 71°. High 86°, low 70°.
0
Old Chatham, Sunday, 9 August
Clear. High 86°, low 68°.
0.07
Old Chatham, Monday, 10 August
Light rain. High 86°, low 65°.
0
Old Chatham, Tuesday, 11 August
Mostly clear. High 83°, low 66°.
0.31Old Chatham, Wednesday, 12 August
Light rain. High 77°, low 65°.
0.13Old Chatham, Thursday, 13 August
Light rain. High 75°, low 56°.
0Old Chatham, Friday, 14 August
Clear. High 72°, low 51°.
0Old Chatham, Saturday, 15 August
Clear. High 71°, low 48°.
0
Old Chatham, Sunday, 16 August
Overcast. High 75°, low 50°.
0Old Chatham, Monday, 17 August
Overcast. High 76°, low 54°.
0.22Old Chatham, Tuesday, 18 August
Light rain. High 71°, low 64°.
0.01Old Chatham, Wednesday, 19 August
Light rain. High 77°, low 60°.
0Old Chatham, Thursday, 20 August
Overcast. High 78°, low 55°.
0.87Old Chatham, Friday, 21 August
Heavy rain. High 71°, low 60°.
0.03Old Chatham, Saturday, 22 August
Light rain. High 78°, low 62°.
0.02Old Chatham, Sunday, 23 August
Light rain. High 68°, low 51°.
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 Old Chatham, 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 Old Chatham, 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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