Monthly outlook for Newcastle, WA: average high 57.1°, average low 45.9°. That is 0.7° above the climate normal for October. Precipitation is expected on 7 days (about 2.7 inches), against a normal of 9 days and 3.4 inches. The warmest day looks like 25 October (66°), the coolest 18 October (41.3°).
57.1°/45.9°
Average high / low
+0.7°
Above normal
7 / 9
Wet days / normal
2.7 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
18 October – 27 October
60.3°
57°
+1.9°
28 October – 6 November
51.6°
53.4°
-1°
7 November – 16 November
at normal
50.9°
—
October records over 66 years
87.1°1 October 1987All-time high
23.7°28 October 1971All-time low
Climate normals and records are computed from the nearest reference point — Bryn Mawr (4 mi).
Mon, 1961° / 46°0
61 °
Newcastle, Monday, 19 October
Overcast. High 61°, low 46°.
Pressure29.97 inHg
Wind1.6 mph SW
Humidity69%
Visibility6.2 mi
Dew point47°
Tue, 2061° / 48°0
61 °
Newcastle, Tuesday, 20 October
Mostly clear. High 61°, low 48°.
Pressure30.06 inHg
Wind5.9 mph N
Humidity78%
Visibility6.2 mi
Dew point49°
Wed, 2163° / 44°0
63 °
Newcastle, Wednesday, 21 October
Mostly clear. High 63°, low 44°.
Pressure29.94 inHg
Wind1 mph NW
Humidity77%
Visibility6.2 mi
Dew point49°
Thu, 2257° / 48°0.16
57 °
Newcastle, Thursday, 22 October
Rain. High 57°, low 48°.
Pressure30.00 inHg
Wind6 mph NE
Humidity81%
Visibility—
Dew point47°
Fri, 2358° / 45°0
58 °
Newcastle, Friday, 23 October
Overcast. High 58°, low 45°.
Pressure30.21 inHg
Wind5.9 mph S
Humidity76%
Visibility—
Dew point43°
Sat, 2460° / 42°0
60 °
Newcastle, Saturday, 24 October
Overcast. High 60°, low 42°.
Pressure30.27 inHg
Wind6.3 mph N
Humidity52%
Visibility—
Dew point35°
Sun, 2566° / 45°0
66 °
Newcastle, Sunday, 25 October
Overcast. High 66°, low 45°.
Pressure30.12 inHg
Wind5.4 mph N
Humidity33%
Visibility—
Dew point27°
Mon, 2664° / 49°0
64 °
Newcastle, Monday, 26 October
Overcast. High 64°, low 49°.
Pressure29.88 inHg
Wind3.4 mph SE
Humidity36%
Visibility—
Dew point30°
Tue, 2754° / 46°0
54 °
Newcastle, Tuesday, 27 October
Overcast. High 54°, low 46°.
Pressure29.91 inHg
Wind6.1 mph S
Humidity71%
Visibility—
Dew point41°
Wed, 2854° / 48°0.07
54 °
Newcastle, Wednesday, 28 October
Light rain. High 54°, low 48°.
Pressure29.94 inHg
Wind13 mph S
Humidity84%
Visibility—
Dew point46°
Thu, 2956° / 49°0.54
56 °
Newcastle, Thursday, 29 October
Rain. High 56°, low 49°.
Pressure29.88 inHg
Wind18.6 mph SW
Humidity71%
Visibility—
Dew point44°
Fri, 3051° / 45°0.26
51 °
Newcastle, Friday, 30 October
Light rain. High 51°, low 45°.
Pressure29.59 inHg
Wind13.3 mph SW
Humidity74%
Visibility—
Dew point40°
Sat, 3151° / 43°0.73
51 °
Newcastle, Saturday, 31 October
Rain. High 51°, low 43°.
Pressure29.32 inHg
Wind15 mph SW
Humidity85%
Visibility—
Dew point41°
Sun, 0149° / 46°0.78
49 °
Newcastle, Sunday, 1 November
Rain. High 49°, low 46°.
Pressure29.50 inHg
Wind16.7 mph S
Humidity80%
Visibility—
Dew point41°
Mon, 0249° / 48°0.19
49 °
Newcastle, Monday, 2 November
Light rain. High 49°, low 48°.
Pressure29.80 inHg
Wind14.7 mph S
Humidity86%
Visibility—
Dew point44°
From day 17 onward the outlook is built from 60-year climate statistics
Tue, 0353° / 42°0.27
53 °
Newcastle, Tuesday, 3 November
Climate normal for this date — 60-year average.
Average high53°
Average low42°
Average precipitation0.27 in
Chance of precipitation62%
Record high66° (2010)
Record low29° (2003)
Wed, 0454° / 42°0.33
54 °
Newcastle, Wednesday, 4 November
Climate normal for this date — 60-year average.
Average high54°
Average low42°
Average precipitation0.33 in
Chance of precipitation58%
Record high67° (1980)
Record low28° (2003)
Thu, 0553° / 42°0.19
53 °
Newcastle, Thursday, 5 November
Climate normal for this date — 60-year average.
Average high53°
Average low42°
Average precipitation0.19 in
Chance of precipitation55%
Record high65° (1997)
Record low26° (1971)
Fri, 0652° / 42°0.3
52 °
Newcastle, Friday, 6 November
Climate normal for this date — 60-year average.
Average high52°
Average low42°
Average precipitation0.3 in
Chance of precipitation63%
Record high60° (1967)
Record low27° (2003)
Sat, 0752° / 42°0.27
52 °
Newcastle, Saturday, 7 November
Climate normal for this date — 60-year average.
Average high52°
Average low42°
Average precipitation0.27 in
Chance of precipitation62%
Record high62° (2016)
Record low29° (2003)
Sun, 0852° / 41°0.19
52 °
Newcastle, Sunday, 8 November
Climate normal for this date — 60-year average.
Average high52°
Average low41°
Average precipitation0.19 in
Chance of precipitation55%
Record high66° (2016)
Record low30° (1977)
Mon, 0951° / 41°0.24
51 °
Newcastle, Monday, 9 November
Climate normal for this date — 60-year average.
Average high51°
Average low41°
Average precipitation0.24 in
Chance of precipitation67%
Record high62° (2025)
Record low29° (2020)
Tue, 1051° / 41°0.2
51 °
Newcastle, Tuesday, 10 November
Climate normal for this date — 60-year average.
Average high51°
Average low41°
Average precipitation0.2 in
Chance of precipitation48%
Record high65° (2016)
Record low26° (1986)
Wed, 1151° / 40°0.24
51 °
Newcastle, Wednesday, 11 November
Climate normal for this date — 60-year average.
Average high51°
Average low40°
Average precipitation0.24 in
Chance of precipitation55%
Record high63° (1996)
Record low25° (1985)
Thu, 1251° / 41°0.28
51 °
Newcastle, Thursday, 12 November
Climate normal for this date — 60-year average.
Average high51°
Average low41°
Average precipitation0.28 in
Chance of precipitation65%
Record high60° (1990)
Record low25° (1978)
Fri, 1351° / 40°0.29
51 °
Newcastle, Friday, 13 November
Climate normal for this date — 60-year average.
Average high51°
Average low40°
Average precipitation0.29 in
Chance of precipitation60%
Record high63° (1967)
Record low26° (1978)
Sat, 1451° / 40°0.3
51 °
Newcastle, Saturday, 14 November
Climate normal for this date — 60-year average.
Average high51°
Average low40°
Average precipitation0.3 in
Chance of precipitation53%
Record high64° (1969)
Record low26° (1978)
Sun, 1550° / 40°0.24
50 °
Newcastle, Sunday, 15 November
Climate normal for this date — 60-year average.
Average high50°
Average low40°
Average precipitation0.24 in
Chance of precipitation67%
Record high59° (2021)
Record low26° (2014)
Mon, 1649° / 40°0.23
49 °
Newcastle, Monday, 16 November
Climate normal for this date — 60-year average.
Average high49°
Average low40°
Average precipitation0.23 in
Chance of precipitation73%
Record high61° (1965)
Record low27° (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, WA 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, WA 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.