Weather in New Castle, NH
New Castle, Saturday, 8 August, 22:15
Partly cloudy. Feels like 73°. High 87°, low 72°.
0.02
New Castle, Sunday, 9 August
Light rain. High 95°, low 70°.
0
New Castle, Monday, 10 August
Partly cloudy. High 88°, low 69°.
0.04New Castle, Tuesday, 11 August
Light rain. High 84°, low 66°.
0.23New Castle, Wednesday, 12 August
Rain. High 69°, low 63°.
0.04New Castle, Thursday, 13 August
Light rain. High 80°, low 62°.
0
New Castle, Friday, 14 August
Clear. High 74°, low 58°.
0New Castle, Saturday, 15 August
Clear. High 76°, low 59°.
0New Castle, Sunday, 16 August
Clear. High 70°, low 58°.
0
New Castle, Monday, 17 August
Overcast. High 74°, low 59°.
0.12New Castle, Tuesday, 18 August
Light rain. High 73°, low 62°.
0New Castle, Wednesday, 19 August
Overcast. High 72°, low 62°.
0.66New Castle, Thursday, 20 August
Rain. High 73°, low 64°.
0New Castle, Friday, 21 August
Clear. High 72°, low 58°.
0New Castle, Saturday, 22 August
Clear. High 75°, low 57°.
0.01New Castle, Sunday, 23 August
Light rain. High 74°, low 56°.
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 New Castle, NH 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 New Castle, NH 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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