As of 02:37 MDT

Weather in Newcastle, WY

37°Current weather

Newcastle, Tuesday, 13 October, 02:37

Rain. Feels like 32°. High 46°, low 37°.

Pressure30.03 inHg
Wind5.7 mph SW
Humidity100%
Visibility3.0 mi
Dew point37°

Monthly outlook for Newcastle, WY: average high 54°, average low 37.4°. That is 0.8° below the climate normal for October. Precipitation is expected on 3 days (about 0.4 inches), against a normal of 3 days and 0.6 inches. The warmest day looks like 20 October (71.9°), the coolest 16 October (27.1°).

54°/37.4°
Average high / low
−0.8°
Below normal
3 / 3
Wet days / normal
0.4 in
Precipitation this month

Ten-day blocks vs climate normal

PeriodForecast highNormalDifference
13 October – 22 October56.6°56.6°+0°
23 October – 1 November49.7°51.5°-1°
2 November – 11 Novemberat normal46.6°—

October records over 66 years

86.2°4 October 1963All-time high
-9.9°26 October 2020All-time low
Wed, 1445° / 39°0.17Light rain
45 °Light rain

Newcastle, Wednesday, 14 October

Light rain. High 45°, low 39°.

Pressure30.21 inHg
Wind5.2 mph S
Humidity90%
Visibility6.2 mi
Dew point42°
Thu, 1553° / 37°0.02Light rain
53 °Light rain

Newcastle, Thursday, 15 October

Light rain. High 53°, low 37°.

Pressure30.45 inHg
Wind17.6 mph N
Humidity41%
Visibility6.2 mi
Dew point23°
Fri, 1653° / 27°0Clear
53 °Clear

Newcastle, Friday, 16 October

Clear. High 53°, low 27°.

Pressure30.62 inHg
Wind5.8 mph S
Humidity46%
Visibility6.2 mi
Dew point20°
Sat, 1767° / 42°0Clear
67 °Clear

Newcastle, Saturday, 17 October

Clear. High 67°, low 42°.

Pressure30.03 inHg
Wind5.9 mph E
Humidity29%
Visibility—
Dew point27°
Sun, 1865° / 42°0Mostly clear
65 °Mostly clear

Newcastle, Sunday, 18 October

Mostly clear. High 65°, low 42°.

Pressure29.94 inHg
Wind11.7 mph SE
Humidity36%
Visibility—
Dew point34°
Mon, 1970° / 45°0Clear
70 °Clear

Newcastle, Monday, 19 October

Clear. High 70°, low 45°.

Pressure29.88 inHg
Wind16.2 mph S
Humidity33%
Visibility—
Dew point30°
Tue, 2072° / 50°0Clear
72 °Clear

Newcastle, Tuesday, 20 October

Clear. High 72°, low 50°.

Pressure29.68 inHg
Wind10.6 mph S
Humidity27%
Visibility—
Dew point30°
Wed, 2155° / 39°0.02Light rain
55 °Light rain

Newcastle, Wednesday, 21 October

Light rain. High 55°, low 39°.

Pressure29.74 inHg
Wind17.4 mph NW
Humidity55%
Visibility—
Dew point36°
Thu, 2241° / 36°0.04Light rain
41 °Light rain

Newcastle, Thursday, 22 October

Light rain. High 41°, low 36°.

Pressure29.88 inHg
Wind14.7 mph NW
Humidity80%
Visibility—
Dew point33°
Fri, 2344° / 34°0Overcast
44 °Overcast

Newcastle, Friday, 23 October

Overcast. High 44°, low 34°.

Pressure30.12 inHg
Wind20.9 mph NW
Humidity57%
Visibility—
Dew point27°
Sat, 2446° / 30°0Overcast
46 °Overcast

Newcastle, Saturday, 24 October

Overcast. High 46°, low 30°.

Pressure30.30 inHg
Wind7.2 mph NW
Humidity49%
Visibility—
Dew point24°
Sun, 2550° / 32°0Light rain
50 °Light rain

Newcastle, Sunday, 25 October

Light rain. High 50°, low 32°.

Pressure30.12 inHg
Wind10.3 mph NE
Humidity51%
Visibility—
Dew point27°
Mon, 2650° / 35°0Overcast
50 °Overcast

Newcastle, Monday, 26 October

Overcast. High 50°, low 35°.

Pressure30.24 inHg
Wind9.5 mph SE
Humidity44%
Visibility—
Dew point26°
Tue, 2752° / 35°0Clear
52 °Clear

Newcastle, Tuesday, 27 October

Clear. High 52°, low 35°.

Pressure30.21 inHg
Wind14.3 mph NW
Humidity39%
Visibility—
Dew point24°
Wed, 2856° / 37°0Overcast
56 °Overcast

Newcastle, Wednesday, 28 October

Overcast. High 56°, low 37°.

Pressure30.00 inHg
Wind7.5 mph E
Humidity37%
Visibility—
Dew point24°
From day 17 onward the outlook is built from 60-year climate statistics
Thu, 2950° / 32°0.06Climate normal
50 °Climate normal

Newcastle, Thursday, 29 October

Climate normal for this date — 60-year average.

Average high50°
Average low32°
Average precipitation0.06 in
Chance of precipitation27%
Record high75° (1968)
Record low1° (1991)
Fri, 3048° / 31°0.03Climate normal
48 °Climate normal

Newcastle, Friday, 30 October

Climate normal for this date — 60-year average.

Average high48°
Average low31°
Average precipitation0.03 in
Chance of precipitation20%
Record high72° (1965)
Record low-2° (1991)
Sat, 3148° / 30°0.03Climate normal
48 °Climate normal

Newcastle, Saturday, 31 October

Climate normal for this date — 60-year average.

Average high48°
Average low30°
Average precipitation0.03 in
Chance of precipitation20%
Record high70° (1999)
Record low-4° (1991)
Sun, 0147° / 30°0.04Climate normal
47 °Climate normal

Newcastle, Sunday, 1 November

Climate normal for this date — 60-year average.

Average high47°
Average low30°
Average precipitation0.04 in
Chance of precipitation18%
Record high67° (2008)
Record low1° (1991)
Mon, 0248° / 30°0.04Climate normal
48 °Climate normal

Newcastle, Monday, 2 November

Climate normal for this date — 60-year average.

Average high48°
Average low30°
Average precipitation0.04 in
Chance of precipitation17%
Record high71° (2008)
Record low-9° (1991)
Tue, 0348° / 30°0.03Climate normal
48 °Climate normal

Newcastle, Tuesday, 3 November

Climate normal for this date — 60-year average.

Average high48°
Average low30°
Average precipitation0.03 in
Chance of precipitation20%
Record high68° (2015)
Record low-3° (1991)
Wed, 0449° / 30°0.01Climate normal
49 °Climate normal

Newcastle, Wednesday, 4 November

Climate normal for this date — 60-year average.

Average high49°
Average low30°
Average precipitation0.01 in
Chance of precipitation8%
Record high70° (1978)
Record low8° (1970)
Thu, 0548° / 30°0.02Climate normal
48 °Climate normal

Newcastle, Thursday, 5 November

Climate normal for this date — 60-year average.

Average high48°
Average low30°
Average precipitation0.02 in
Chance of precipitation17%
Record high67° (1977)
Record low4° (2003)
Fri, 0648° / 29°0.03Climate normal
48 °Climate normal

Newcastle, Friday, 6 November

Climate normal for this date — 60-year average.

Average high48°
Average low29°
Average precipitation0.03 in
Chance of precipitation13%
Record high70° (2010)
Record low-5° (2003)
Sat, 0748° / 29°0.02Climate normal
48 °Climate normal

Newcastle, Saturday, 7 November

Climate normal for this date — 60-year average.

Average high48°
Average low29°
Average precipitation0.02 in
Chance of precipitation12%
Record high69° (1999)
Record low-1° (1971)
Sun, 0847° / 29°0.06Climate normal
47 °Climate normal

Newcastle, Sunday, 8 November

Climate normal for this date — 60-year average.

Average high47°
Average low29°
Average precipitation0.06 in
Chance of precipitation23%
Record high73° (1999)
Record low1° (2000)
Mon, 0944° / 28°0.04Climate normal
44 °Climate normal

Newcastle, Monday, 9 November

Climate normal for this date — 60-year average.

Average high44°
Average low28°
Average precipitation0.04 in
Chance of precipitation18%
Record high65° (2016)
Record low-2° (1966)
Tue, 1044° / 26°0.04Climate normal
44 °Climate normal

Newcastle, Tuesday, 10 November

Climate normal for this date — 60-year average.

Average high44°
Average low26°
Average precipitation0.04 in
Chance of precipitation18%
Record high64° (2007)
Record low-9° (1986)
Wed, 1143° / 26°0.01Climate normal
43 °Climate normal

Newcastle, Wednesday, 11 November

Climate normal for this date — 60-year average.

Average high43°
Average low26°
Average precipitation0.01 in
Chance of precipitation10%
Record high67° (2005)
Record low-12° (1986)

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 Newcastle, WY 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 Newcastle, WY 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.