Weather in New Castle, CO
New Castle, Friday, 30 October, 21:15
Overcast. Feels like 50°. High 65°, low 41°.
Monthly outlook for New Castle, CO: average high 49.9°, average low 35.7°. That is 0.5° below the climate normal for October. Precipitation is expected on 7 days (about 2.6 inches), against a normal of 4 days and 1.1 inches. The warmest day looks like 30 October (65.5°), the coolest 13 November (26.7°).
Ten-day blocks vs climate normal
| Period | Forecast high | Normal | Difference |
|---|---|---|---|
| 30 October – 8 November | 52° | 52.2° | -0.1° |
| 9 November – 18 November | 46.3° | 47.5° | -0.6° |
| 19 November – 28 November | at normal | 41.7° | — |
October records over 66 years
Climate normals and records are computed from the nearest reference point — Silt (7 mi).
0.09
New Castle, Saturday, 31 October
Rain. High 59°, low 41°.
0.49New Castle, Sunday, 1 November
Rain. High 52°, low 41°.
0.64New Castle, Monday, 2 November
Rain. High 47°, low 40°.
0.03New Castle, Tuesday, 3 November
Light rain. High 54°, low 40°.
0.12New Castle, Wednesday, 4 November
Light rain. High 55°, low 39°.
0New Castle, Thursday, 5 November
Overcast. High 54°, low 38°.
0.22New Castle, Friday, 6 November
Light rain. High 49°, low 43°.
0.72
New Castle, Saturday, 7 November
Snow. High 42°, low 30°.
0
New Castle, Sunday, 8 November
Clear. High 43°, low 28°.
0New Castle, Monday, 9 November
Overcast. High 46°, low 31°.
0New Castle, Tuesday, 10 November
Clear. High 52°, low 34°.
0.01New Castle, Wednesday, 11 November
Snow. High 53°, low 38°.
0.26New Castle, Thursday, 12 November
Snow. High 39°, low 30°.
0New Castle, Friday, 13 November
Overcast. High 41°, low 27°.
0New Castle, Saturday, 14 November
Overcast. High 46°, low 31°.
0.06
New Castle, Sunday, 15 November
Climate normal for this date — 60-year average.
0.04
New Castle, Monday, 16 November
Climate normal for this date — 60-year average.
0.06New Castle, Tuesday, 17 November
Climate normal for this date — 60-year average.
0.06New Castle, Wednesday, 18 November
Climate normal for this date — 60-year average.
0.09New Castle, Thursday, 19 November
Climate normal for this date — 60-year average.
0.04New Castle, Friday, 20 November
Climate normal for this date — 60-year average.
0.07
New Castle, Saturday, 21 November
Climate normal for this date — 60-year average.
0.06New Castle, Sunday, 22 November
Climate normal for this date — 60-year average.
0.07New Castle, Monday, 23 November
Climate normal for this date — 60-year average.
0.06New Castle, Tuesday, 24 November
Climate normal for this date — 60-year average.
0.07New Castle, Wednesday, 25 November
Climate normal for this date — 60-year average.
0.1New Castle, Thursday, 26 November
Climate normal for this date — 60-year average.
0.08New Castle, Friday, 27 November
Climate normal for this date — 60-year average.
0.07New Castle, Saturday, 28 November
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 New Castle, CO 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, CO 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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