Weather in New Castle, CO
New Castle, Thursday, 29 October, 18:01
Clear. Feels like 55°. High 63°, low 37°.
Monthly outlook for New Castle, CO: average high 52.6°, average low 38.1°. That is 0.8° above the climate normal for October. Precipitation is expected on 8 days (about 1.9 inches), against a normal of 4 days and 1.1 inches. The warmest day looks like 30 October (65.1°), the coolest 12 November (28.5°).
Ten-day blocks vs climate normal
| Period | Forecast high | Normal | Difference |
|---|---|---|---|
| 29 October – 7 November | 55.8° | 52.5° | +1.9° |
| 8 November – 17 November | 47.2° | 48.1° | -0.5° |
| 18 November – 27 November | at normal | 42.4° | — |
October records over 66 years
Climate normals and records are computed from the nearest reference point — Silt (7 mi).
0
New Castle, Friday, 30 October
Overcast. High 65°, low 40°.
0.05
New Castle, Saturday, 31 October
Light rain. High 57°, low 43°.
0.32New Castle, Sunday, 1 November
Rain. High 56°, low 43°.
0.39New Castle, Monday, 2 November
Rain. High 48°, low 44°.
0.01New Castle, Tuesday, 3 November
Light rain. High 52°, low 36°.
0
New Castle, Wednesday, 4 November
Partly cloudy. High 57°, low 36°.
0New Castle, Thursday, 5 November
Overcast. High 56°, low 42°.
0.13New Castle, Friday, 6 November
Light rain. High 53°, low 40°.
0.01New Castle, Saturday, 7 November
Light rain. High 51°, low 39°.
0New Castle, Sunday, 8 November
Clear. High 51°, low 38°.
0New Castle, Monday, 9 November
Overcast. High 51°, low 39°.
0.17
New Castle, Tuesday, 10 November
Snow. High 55°, low 40°.
0.47New Castle, Wednesday, 11 November
Snow. High 44°, low 35°.
0.04New Castle, Thursday, 12 November
Light snow. High 45°, low 28°.
0.29New Castle, Friday, 13 November
Snow. High 36°, low 29°.
0.05New Castle, Saturday, 14 November
Climate normal for this date — 60-year average.
0.06New 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.
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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