As of 08:03 MDT

Weather in Newcastle, WY

23°Current weather

Newcastle, Friday, 16 October, 08:03

Clear. Feels like 23°. High 46°, low 23°.

Pressure30.74 inHg
Wind0 mph N
Humidity86%
Visibility6.2 mi
Dew point21°

Monthly outlook for Newcastle, WY: average high 54.9°, average low 38.6°. That is 0.5° above the climate normal for October. Precipitation is expected on 4 days (about 0.7 inches), against a normal of 3 days and 0.6 inches. The warmest day looks like 22 October (68.2°), the coolest 16 October (22.5°).

54.9°/38.6°
Average high / low
+0.5°
Above normal
4 / 3
Wet days / normal
0.7 in
Precipitation this month

Ten-day blocks vs climate normal

PeriodForecast highNormalDifference
16 October – 25 October59.5°56.1°+1.9°
26 October – 4 November47.2°49.6°-1.3°
5 November – 14 Novemberat normal45.4°—

October records over 66 years

86.2°4 October 1963All-time high
-9.9°26 October 2020All-time low
Sat, 1764° / 38°0Clear
64 °Clear

Newcastle, Saturday, 17 October

Clear. High 64°, low 38°.

Pressure30.12 inHg
Wind3.4 mph SE
Humidity31%
Visibility6.2 mi
Dew point29°
Sun, 1865° / 38°0Clear
65 °Clear

Newcastle, Sunday, 18 October

Clear. High 65°, low 38°.

Pressure30.03 inHg
Wind6.7 mph SW
Humidity32%
Visibility6.2 mi
Dew point34°
Mon, 1964° / 38°0Clear
64 °Clear

Newcastle, Monday, 19 October

Clear. High 64°, low 38°.

Pressure30.03 inHg
Wind6.4 mph S
Humidity44%
Visibility6.2 mi
Dew point37°
Tue, 2066° / 46°0Mostly clear
66 °Mostly clear

Newcastle, Tuesday, 20 October

Mostly clear. High 66°, low 46°.

Pressure29.94 inHg
Wind7.5 mph E
Humidity44%
Visibility—
Dew point38°
Wed, 2166° / 42°0Clear
66 °Clear

Newcastle, Wednesday, 21 October

Clear. High 66°, low 42°.

Pressure30.12 inHg
Wind6.7 mph E
Humidity42%
Visibility—
Dew point38°
Thu, 2268° / 50°0Mostly clear
68 °Mostly clear

Newcastle, Thursday, 22 October

Mostly clear. High 68°, low 50°.

Pressure30.00 inHg
Wind22.1 mph SE
Humidity30%
Visibility—
Dew point32°
Fri, 2366° / 46°0.06Light rain
66 °Light rain

Newcastle, Friday, 23 October

Light rain. High 66°, low 46°.

Pressure29.65 inHg
Wind22.3 mph SW
Humidity39%
Visibility—
Dew point37°
Sat, 2451° / 37°0Partly cloudy
51 °Partly cloudy

Newcastle, Saturday, 24 October

Partly cloudy. High 51°, low 37°.

Pressure30.21 inHg
Wind19.7 mph NW
Humidity51%
Visibility—
Dew point27°
Sun, 2539° / 33°0.12Light snow
39 °Light snow

Newcastle, Sunday, 25 October

Light snow. High 39°, low 33°.

Pressure30.30 inHg
Wind7.6 mph SW
Humidity86%
Visibility—
Dew point32°
Mon, 2642° / 33°0.03Light snow
42 °Light snow

Newcastle, Monday, 26 October

Light snow. High 42°, low 33°.

Pressure30.21 inHg
Wind10.3 mph S
Humidity68%
Visibility—
Dew point29°
Tue, 2754° / 34°0Overcast
54 °Overcast

Newcastle, Tuesday, 27 October

Overcast. High 54°, low 34°.

Pressure29.85 inHg
Wind7.9 mph E
Humidity50%
Visibility—
Dew point30°
Wed, 2845° / 42°0.25Light rain
45 °Light rain

Newcastle, Wednesday, 28 October

Light rain. High 45°, low 42°.

Pressure29.71 inHg
Wind7 mph W
Humidity90%
Visibility—
Dew point42°
Thu, 2946° / 41°0.2Light rain
46 °Light rain

Newcastle, Thursday, 29 October

Light rain. High 46°, low 41°.

Pressure29.97 inHg
Wind11.6 mph NW
Humidity85%
Visibility—
Dew point39°
Fri, 3050° / 40°0Overcast
50 °Overcast

Newcastle, Friday, 30 October

Overcast. High 50°, low 40°.

Pressure30.15 inHg
Wind4.8 mph E
Humidity68%
Visibility—
Dew point36°
Sat, 3147° / 36°0Overcast
47 °Overcast

Newcastle, Saturday, 31 October

Overcast. High 47°, low 36°.

Pressure30.15 inHg
Wind8.8 mph S
Humidity71%
Visibility—
Dew point32°
From day 17 onward the outlook is built from 60-year climate statistics
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)
Thu, 1244° / 26°0.02Climate normal
44 °Climate normal

Newcastle, Thursday, 12 November

Climate normal for this date — 60-year average.

Average high44°
Average low26°
Average precipitation0.02 in
Chance of precipitation15%
Record high68° (1999)
Record low-11° (1986)
Fri, 1345° / 27°0.04Climate normal
45 °Climate normal

Newcastle, Friday, 13 November

Climate normal for this date — 60-year average.

Average high45°
Average low27°
Average precipitation0.04 in
Chance of precipitation22%
Record high69° (1999)
Record low-15° (1986)
Sat, 1444° / 27°0.02Climate normal
44 °Climate normal

Newcastle, Saturday, 14 November

Climate normal for this date — 60-year average.

Average high44°
Average low27°
Average precipitation0.02 in
Chance of precipitation12%
Record high68° (1999)
Record low-2° (2000)

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.