As of 08:03 MDT

Weather in New Castle, CO

44°Current weather

New Castle, Sunday, 25 October, 08:03

Overcast. Feels like 44°. High 53°, low 42°.

Pressure30.21 inHg
Wind0 mph N
Humidity97%
Visibility6.2 mi
Dew point42°

Monthly outlook for New Castle, CO: average high 57.5°, average low 39.5°. That is 2.3° above the climate normal for October. Precipitation is expected on 4 days (about 0.7 inches), against a normal of 4 days and 1.1 inches. The warmest day looks like 1 November (64°), the coolest 8 November (33.3°).

57.5°/39.5°
Average high / low
+2.3°
Above normal
4 / 4
Wet days / normal
0.7 in
Precipitation this month

Ten-day blocks vs climate normal

PeriodForecast highNormalDifference
25 October – 3 November58.4°54.4°+2.2°
4 November – 13 November56.1°50.4°+3.2°
14 November – 23 Novemberat normal45.2°—

October records over 66 years

85.5°4 October 2024All-time high
-13.4°25 October 1975All-time low

Climate normals and records are computed from the nearest reference point — Silt (7 mi).

Mon, 2659° / 40°0.02Light rain
59 °Light rain

New Castle, Monday, 26 October

Light rain. High 59°, low 40°.

Pressure30.21 inHg
Wind2.6 mph SW
Humidity51%
Visibility6.2 mi
Dew point33°
Tue, 2758° / 36°0Clear
58 °Clear

New Castle, Tuesday, 27 October

Clear. High 58°, low 36°.

Pressure30.03 inHg
Wind2 mph W
Humidity44%
Visibility6.2 mi
Dew point28°
Wed, 2860° / 36°0Clear
60 °Clear

New Castle, Wednesday, 28 October

Clear. High 60°, low 36°.

Pressure30.06 inHg
Wind2.1 mph SW
Humidity43%
Visibility6.2 mi
Dew point30°
Thu, 2962° / 38°0Overcast
62 °Overcast

New Castle, Thursday, 29 October

Overcast. High 62°, low 38°.

Pressure30.06 inHg
Wind4 mph NE
Humidity36%
Visibility—
Dew point29°
Fri, 3063° / 42°0Overcast
63 °Overcast

New Castle, Friday, 30 October

Overcast. High 63°, low 42°.

Pressure30.00 inHg
Wind5.5 mph NE
Humidity35%
Visibility—
Dew point30°
Sat, 3156° / 42°0.03Light rain
56 °Light rain

New Castle, Saturday, 31 October

Light rain. High 56°, low 42°.

Pressure30.00 inHg
Wind6.8 mph S
Humidity53%
Visibility—
Dew point37°
Sun, 0164° / 43°0.06Light rain
64 °Light rain

New Castle, Sunday, 1 November

Light rain. High 64°, low 43°.

Pressure29.91 inHg
Wind11.9 mph S
Humidity39%
Visibility—
Dew point33°
Mon, 0253° / 41°0.12Light rain
53 °Light rain

New Castle, Monday, 2 November

Light rain. High 53°, low 41°.

Pressure30.09 inHg
Wind25.6 mph SW
Humidity40%
Visibility—
Dew point26°
Tue, 0356° / 38°0Clear
56 °Clear

New Castle, Tuesday, 3 November

Clear. High 56°, low 38°.

Pressure30.27 inHg
Wind4.7 mph W
Humidity37%
Visibility—
Dew point25°
Wed, 0459° / 41°0.01Light rain
59 °Light rain

New Castle, Wednesday, 4 November

Light rain. High 59°, low 41°.

Pressure30.03 inHg
Wind3.8 mph W
Humidity28%
Visibility—
Dew point22°
Thu, 0558° / 42°0Overcast
58 °Overcast

New Castle, Thursday, 5 November

Overcast. High 58°, low 42°.

Pressure30.00 inHg
Wind4.9 mph SE
Humidity42%
Visibility—
Dew point30°
Fri, 0660° / 43°0.17Light rain
60 °Light rain

New Castle, Friday, 6 November

Light rain. High 60°, low 43°.

Pressure29.65 inHg
Wind19.3 mph SW
Humidity22%
Visibility—
Dew point20°
Sat, 0748° / 35°0.26Light rain
48 °Light rain

New Castle, Saturday, 7 November

Light rain. High 48°, low 35°.

Pressure29.85 inHg
Wind17.7 mph NW
Humidity58%
Visibility—
Dew point31°
Sun, 0852° / 33°0Mostly clear
52 °Mostly clear

New Castle, Sunday, 8 November

Mostly clear. High 52°, low 33°.

Pressure30.24 inHg
Wind4.2 mph E
Humidity43%
Visibility—
Dew point24°
Mon, 0960° / 40°0Clear
60 °Clear

New Castle, Monday, 9 November

Clear. High 60°, low 40°.

Pressure30.30 inHg
Wind4.9 mph E
Humidity53%
Visibility—
Dew point36°
From day 17 onward the outlook is built from 60-year climate statistics
Tue, 1049° / 26°0.06Climate normal
49 °Climate normal

New Castle, Tuesday, 10 November

Climate normal for this date — 60-year average.

Average high49°
Average low26°
Average precipitation0.06 in
Chance of precipitation35%
Record high68° (1980)
Record low-7° (2011)
Wed, 1149° / 26°0.07Climate normal
49 °Climate normal

New Castle, Wednesday, 11 November

Climate normal for this date — 60-year average.

Average high49°
Average low26°
Average precipitation0.07 in
Chance of precipitation30%
Record high67° (1980)
Record low-9° (2011)
Thu, 1248° / 25°0.08Climate normal
48 °Climate normal

New Castle, Thursday, 12 November

Climate normal for this date — 60-year average.

Average high48°
Average low25°
Average precipitation0.08 in
Chance of precipitation27%
Record high66° (1999)
Record low-11° (2012)
Fri, 1348° / 25°0.06Climate normal
48 °Climate normal

New Castle, Friday, 13 November

Climate normal for this date — 60-year average.

Average high48°
Average low25°
Average precipitation0.06 in
Chance of precipitation28%
Record high65° (2025)
Record low-8° (2000)
Sat, 1447° / 24°0.05Climate normal
47 °Climate normal

New Castle, Saturday, 14 November

Climate normal for this date — 60-year average.

Average high47°
Average low24°
Average precipitation0.05 in
Chance of precipitation28%
Record high66° (1999)
Record low-11° (2000)
Sun, 1547° / 22°0.06Climate normal
47 °Climate normal

New Castle, Sunday, 15 November

Climate normal for this date — 60-year average.

Average high47°
Average low22°
Average precipitation0.06 in
Chance of precipitation25%
Record high65° (2016)
Record low-14° (1994)
Mon, 1647° / 20°0.04Climate normal
47 °Climate normal

New Castle, Monday, 16 November

Climate normal for this date — 60-year average.

Average high47°
Average low20°
Average precipitation0.04 in
Chance of precipitation17%
Record high65° (1999)
Record low-15° (1997)
Tue, 1746° / 22°0.06Climate normal
46 °Climate normal

New Castle, Tuesday, 17 November

Climate normal for this date — 60-year average.

Average high46°
Average low22°
Average precipitation0.06 in
Chance of precipitation22%
Record high65° (1999)
Record low-10° (2000)
Wed, 1845° / 22°0.06Climate normal
45 °Climate normal

New Castle, Wednesday, 18 November

Climate normal for this date — 60-year average.

Average high45°
Average low22°
Average precipitation0.06 in
Chance of precipitation30%
Record high60° (2008)
Record low-6° (1987)
Thu, 1945° / 22°0.09Climate normal
45 °Climate normal

New Castle, Thursday, 19 November

Climate normal for this date — 60-year average.

Average high45°
Average low22°
Average precipitation0.09 in
Chance of precipitation28%
Record high62° (2007)
Record low-5° (1987)
Fri, 2045° / 20°0.04Climate normal
45 °Climate normal

New Castle, Friday, 20 November

Climate normal for this date — 60-year average.

Average high45°
Average low20°
Average precipitation0.04 in
Chance of precipitation25%
Record high64° (1989)
Record low-3° (1970)
Sat, 2145° / 20°0.07Climate normal
45 °Climate normal

New Castle, Saturday, 21 November

Climate normal for this date — 60-year average.

Average high45°
Average low20°
Average precipitation0.07 in
Chance of precipitation33%
Record high59° (1989)
Record low-3° (1988)
Sun, 2244° / 21°0.06Climate normal
44 °Climate normal

New Castle, Sunday, 22 November

Climate normal for this date — 60-year average.

Average high44°
Average low21°
Average precipitation0.06 in
Chance of precipitation27%
Record high56° (2006)
Record low-1° (1979)
Mon, 2343° / 20°0.07Climate normal
43 °Climate normal

New Castle, Monday, 23 November

Climate normal for this date — 60-year average.

Average high43°
Average low20°
Average precipitation0.07 in
Chance of precipitation30%
Record high58° (2017)
Record low-11° (1994)

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.