As of 11:15 PDT

Weather in Newcastle, CA

68°Current weather

Newcastle, Saturday, 10 October, 11:15

Clear. Feels like 67°. High 73°, low 55°.

Pressure29.62 inHg
Wind10.4 mph S
Humidity57%
Visibility6.2 mi
Dew point52°

Monthly outlook for Newcastle, CA: average high 80.5°, average low 57.4°. That is 2.3° above the climate normal for October. Precipitation is expected on 0 days (about 0.0 inches), against a normal of 2 days and 1.0 inches. The warmest day looks like 17 October (88.2°), the coolest 11 October (47.2°).

80.5°/57.4°
Average high / low
+2.3°
Above normal
0 / 2
Wet days / normal
0.0 in
Precipitation this month

Ten-day blocks vs climate normal

PeriodForecast highNormalDifference
10 October – 19 October78.8°77.5°+0.7°
20 October – 29 October83.2°73°+5.7°
30 October – 8 Novemberat normal68.3°—

October records over 66 years

102.6°2 October 2024All-time high
37.6°31 October 2019All-time low

Climate normals and records are computed from the nearest reference point — Roseville (12 mi).

Sun, 1175° / 47°0Clear
75 °Clear

Newcastle, Sunday, 11 October

Clear. High 75°, low 47°.

Pressure29.50 inHg
Wind5.9 mph SW
Humidity40%
Visibility6.2 mi
Dew point42°
Mon, 1269° / 53°0Partly cloudy
69 °Partly cloudy

Newcastle, Monday, 12 October

Partly cloudy. High 69°, low 53°.

Pressure29.85 inHg
Wind7.5 mph S
Humidity47%
Visibility6.2 mi
Dew point46°
Tue, 1375° / 50°0Clear
75 °Clear

Newcastle, Tuesday, 13 October

Clear. High 75°, low 50°.

Pressure30.00 inHg
Wind7 mph NW
Humidity30%
Visibility6.2 mi
Dew point37°
Wed, 1476° / 52°0Mostly clear
76 °Mostly clear

Newcastle, Wednesday, 14 October

Mostly clear. High 76°, low 52°.

Pressure30.09 inHg
Wind6.2 mph NE
Humidity24%
Visibility—
Dew point29°
Thu, 1580° / 54°0Clear
80 °Clear

Newcastle, Thursday, 15 October

Clear. High 80°, low 54°.

Pressure30.09 inHg
Wind6.6 mph NE
Humidity23%
Visibility—
Dew point29°
Fri, 1686° / 59°0Clear
86 °Clear

Newcastle, Friday, 16 October

Clear. High 86°, low 59°.

Pressure30.09 inHg
Wind5.5 mph W
Humidity15%
Visibility—
Dew point25°
Sat, 1788° / 63°0Partly cloudy
88 °Partly cloudy

Newcastle, Saturday, 17 October

Partly cloudy. High 88°, low 63°.

Pressure30.03 inHg
Wind5.8 mph E
Humidity14%
Visibility—
Dew point26°
Sun, 1886° / 65°0Overcast
86 °Overcast

Newcastle, Sunday, 18 October

Overcast. High 86°, low 65°.

Pressure30.00 inHg
Wind6 mph SW
Humidity11%
Visibility—
Dew point20°
Mon, 1981° / 60°0Partly cloudy
81 °Partly cloudy

Newcastle, Monday, 19 October

Partly cloudy. High 81°, low 60°.

Pressure30.00 inHg
Wind5.9 mph SW
Humidity22%
Visibility—
Dew point32°
Tue, 2084° / 58°0Clear
84 °Clear

Newcastle, Tuesday, 20 October

Clear. High 84°, low 58°.

Pressure29.97 inHg
Wind6.2 mph W
Humidity14%
Visibility—
Dew point20°
Wed, 2185° / 60°0Partly cloudy
85 °Partly cloudy

Newcastle, Wednesday, 21 October

Partly cloudy. High 85°, low 60°.

Pressure29.97 inHg
Wind5.4 mph W
Humidity14%
Visibility—
Dew point23°
Thu, 2285° / 62°0Partly cloudy
85 °Partly cloudy

Newcastle, Thursday, 22 October

Partly cloudy. High 85°, low 62°.

Pressure29.88 inHg
Wind6.5 mph SW
Humidity16%
Visibility—
Dew point28°
Fri, 2378° / 61°0Overcast
78 °Overcast

Newcastle, Friday, 23 October

Overcast. High 78°, low 61°.

Pressure29.94 inHg
Wind5.4 mph E
Humidity33%
Visibility—
Dew point40°
Sat, 2482° / 58°0Clear
82 °Clear

Newcastle, Saturday, 24 October

Clear. High 82°, low 58°.

Pressure30.03 inHg
Wind7 mph W
Humidity30%
Visibility—
Dew point38°
Sun, 2587° / 61°0Partly cloudy
87 °Partly cloudy

Newcastle, Sunday, 25 October

Partly cloudy. High 87°, low 61°.

Pressure30.03 inHg
Wind7 mph W
Humidity20%
Visibility—
Dew point32°
From day 17 onward the outlook is built from 60-year climate statistics
Mon, 2673° / 50°0.13Climate normal
73 °Climate normal

Newcastle, Monday, 26 October

Climate normal for this date — 60-year average.

Average high73°
Average low50°
Average precipitation0.13 in
Chance of precipitation13%
Record high87° (2003)
Record low42° (1989)
Tue, 2772° / 49°0.03Climate normal
72 °Climate normal

Newcastle, Tuesday, 27 October

Climate normal for this date — 60-year average.

Average high72°
Average low49°
Average precipitation0.03 in
Chance of precipitation17%
Record high85° (2003)
Record low39° (1970)
Wed, 2870° / 49°0.11Climate normal
70 °Climate normal

Newcastle, Wednesday, 28 October

Climate normal for this date — 60-year average.

Average high70°
Average low49°
Average precipitation0.11 in
Chance of precipitation17%
Record high84° (2003)
Record low39° (2023)
Thu, 2970° / 49°0.07Climate normal
70 °Climate normal

Newcastle, Thursday, 29 October

Climate normal for this date — 60-year average.

Average high70°
Average low49°
Average precipitation0.07 in
Chance of precipitation22%
Record high81° (1965)
Record low38° (1971)
Fri, 3069° / 48°0.11Climate normal
69 °Climate normal

Newcastle, Friday, 30 October

Climate normal for this date — 60-year average.

Average high69°
Average low48°
Average precipitation0.11 in
Chance of precipitation25%
Record high82° (2015)
Record low38° (2023)
Sat, 3170° / 47°0.04Climate normal
70 °Climate normal

Newcastle, Saturday, 31 October

Climate normal for this date — 60-year average.

Average high70°
Average low47°
Average precipitation0.04 in
Chance of precipitation18%
Record high83° (2015)
Record low38° (2019)
Sun, 0170° / 47°0.06Climate normal
70 °Climate normal

Newcastle, Sunday, 1 November

Climate normal for this date — 60-year average.

Average high70°
Average low47°
Average precipitation0.06 in
Chance of precipitation18%
Record high83° (2018)
Record low37° (1971)
Mon, 0269° / 47°0.09Climate normal
69 °Climate normal

Newcastle, Monday, 2 November

Climate normal for this date — 60-year average.

Average high69°
Average low47°
Average precipitation0.09 in
Chance of precipitation18%
Record high84° (1966)
Record low38° (2019)
Tue, 0369° / 47°0.08Climate normal
69 °Climate normal

Newcastle, Tuesday, 3 November

Climate normal for this date — 60-year average.

Average high69°
Average low47°
Average precipitation0.08 in
Chance of precipitation18%
Record high85° (2018)
Record low38° (2022)
Wed, 0469° / 47°0.06Climate normal
69 °Climate normal

Newcastle, Wednesday, 4 November

Climate normal for this date — 60-year average.

Average high69°
Average low47°
Average precipitation0.06 in
Chance of precipitation15%
Record high83° (1976)
Record low36° (1973)
Thu, 0568° / 47°0.09Climate normal
68 °Climate normal

Newcastle, Thursday, 5 November

Climate normal for this date — 60-year average.

Average high68°
Average low47°
Average precipitation0.09 in
Chance of precipitation13%
Record high83° (1976)
Record low37° (2011)
Fri, 0667° / 48°0.1Climate normal
67 °Climate normal

Newcastle, Friday, 6 November

Climate normal for this date — 60-year average.

Average high67°
Average low48°
Average precipitation0.1 in
Chance of precipitation20%
Record high81° (1976)
Record low38° (1996)
Sat, 0767° / 47°0.09Climate normal
67 °Climate normal

Newcastle, Saturday, 7 November

Climate normal for this date — 60-year average.

Average high67°
Average low47°
Average precipitation0.09 in
Chance of precipitation30%
Record high79° (1976)
Record low38° (2011)
Sun, 0865° / 47°0.11Climate normal
65 °Climate normal

Newcastle, Sunday, 8 November

Climate normal for this date — 60-year average.

Average high65°
Average low47°
Average precipitation0.11 in
Chance of precipitation32%
Record high77° (1976)
Record low37° (2011)

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, CA 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, CA 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.