As of 04:19 MDT

Weather in Newcastle, WY

42°Current weather

Newcastle, Sunday, 18 October, 04:19

Clear. Feels like 39°. High 65°, low 42°.

Pressure30.03 inHg
Wind5.7 mph N
Humidity52%
Visibility6.2 mi
Dew point28°

Monthly outlook for Newcastle, WY: average high 63.3°, average low 43.2°. That is 5.7° above the climate normal for October. Precipitation is expected on 1 day (about 0.2 inches), against a normal of 3 days and 0.6 inches. The warmest day looks like 22 October (69.4°), the coolest 25 October (35.9°).

63.3°/43.2°
Average high / low
+5.7°
Above normal
1 / 3
Wet days / normal
0.2 in
Precipitation this month

Ten-day blocks vs climate normal

PeriodForecast highNormalDifference
18 October – 27 October62.6°55.3°+4°
28 October – 6 November64.4°48.7°+8.7°
7 November – 16 Novemberat normal44.7°—

October records over 66 years

86.2°4 October 1963All-time high
-9.9°26 October 2020All-time low
Mon, 1962° / 37°0Clear
62 °Clear

Newcastle, Monday, 19 October

Clear. High 62°, low 37°.

Pressure30.15 inHg
Wind8.7 mph S
Humidity49%
Visibility6.2 mi
Dew point36°
Tue, 2066° / 45°0Clear
66 °Clear

Newcastle, Tuesday, 20 October

Clear. High 66°, low 45°.

Pressure30.00 inHg
Wind4.1 mph S
Humidity42%
Visibility6.2 mi
Dew point40°
Wed, 2166° / 41°0Clear
66 °Clear

Newcastle, Wednesday, 21 October

Clear. High 66°, low 41°.

Pressure30.15 inHg
Wind5.7 mph S
Humidity47%
Visibility6.2 mi
Dew point41°
Thu, 2269° / 53°0Partly cloudy
69 °Partly cloudy

Newcastle, Thursday, 22 October

Partly cloudy. High 69°, low 53°.

Pressure29.94 inHg
Wind12.3 mph SE
Humidity52%
Visibility—
Dew point47°
Fri, 2367° / 52°0.04Light rain
67 °Light rain

Newcastle, Friday, 23 October

Light rain. High 67°, low 52°.

Pressure29.65 inHg
Wind11.4 mph NW
Humidity69%
Visibility—
Dew point52°
Sat, 2445° / 37°0.13Light rain
45 °Light rain

Newcastle, Saturday, 24 October

Light rain. High 45°, low 37°.

Pressure30.42 inHg
Wind22.4 mph NW
Humidity52%
Visibility—
Dew point26°
Sun, 2557° / 36°0Mostly clear
57 °Mostly clear

Newcastle, Sunday, 25 October

Mostly clear. High 57°, low 36°.

Pressure30.24 inHg
Wind9.4 mph S
Humidity37%
Visibility—
Dew point25°
Mon, 2662° / 43°0Clear
62 °Clear

Newcastle, Monday, 26 October

Clear. High 62°, low 43°.

Pressure29.97 inHg
Wind11.9 mph S
Humidity23%
Visibility—
Dew point21°
Tue, 2767° / 42°0Clear
67 °Clear

Newcastle, Tuesday, 27 October

Clear. High 67°, low 42°.

Pressure29.83 inHg
Wind15.2 mph NW
Humidity36%
Visibility—
Dew point29°
Wed, 2861° / 39°0Clear
61 °Clear

Newcastle, Wednesday, 28 October

Clear. High 61°, low 39°.

Pressure29.83 inHg
Wind8.7 mph N
Humidity29%
Visibility—
Dew point23°
Thu, 2962° / 41°0Mostly clear
62 °Mostly clear

Newcastle, Thursday, 29 October

Mostly clear. High 62°, low 41°.

Pressure29.77 inHg
Wind5.1 mph SW
Humidity29%
Visibility—
Dew point23°
Fri, 3061° / 45°0Overcast
61 °Overcast

Newcastle, Friday, 30 October

Overcast. High 61°, low 45°.

Pressure29.68 inHg
Wind6.9 mph W
Humidity24%
Visibility—
Dew point18°
Sat, 3166° / 45°0Overcast
66 °Overcast

Newcastle, Saturday, 31 October

Overcast. High 66°, low 45°.

Pressure29.62 inHg
Wind8.3 mph SW
Humidity25%
Visibility—
Dew point22°
Sun, 0168° / 47°0Mostly clear
68 °Mostly clear

Newcastle, Sunday, 1 November

Mostly clear. High 68°, low 47°.

Pressure29.91 inHg
Wind7.8 mph SE
Humidity17%
Visibility—
Dew point15°
Mon, 0268° / 48°0Partly cloudy
68 °Partly cloudy

Newcastle, Monday, 2 November

Partly cloudy. High 68°, low 48°.

Pressure30.00 inHg
Wind10.2 mph S
Humidity13%
Visibility—
Dew point13°
From day 17 onward the outlook is built from 60-year climate statistics
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)
Sun, 1544° / 26°0.02Climate normal
44 °Climate normal

Newcastle, Sunday, 15 November

Climate normal for this date — 60-year average.

Average high44°
Average low26°
Average precipitation0.02 in
Chance of precipitation12%
Record high67° (1999)
Record low-2° (2014)
Mon, 1645° / 27°0.02Climate normal
45 °Climate normal

Newcastle, Monday, 16 November

Climate normal for this date — 60-year average.

Average high45°
Average low27°
Average precipitation0.02 in
Chance of precipitation8%
Record high64° (1999)
Record low-8° (2014)

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.