As of 04:39 PDT

Weather in Newcastle, CA

48°Current weather

Newcastle, Sunday, 11 October, 04:39

Clear. Feels like 48°. High 73°, low 48°.

Pressure29.47 inHg
Wind1 mph W
Humidity76%
Visibility6.2 mi
Dew point41°

Monthly outlook for Newcastle, CA: average high 79.8°, average low 55.8°. That is 2.2° 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 (90.3°), the coolest 13 October (47°).

79.8°/55.8°
Average high / low
+2.2°
Above normal
0 / 2
Wet days / normal
0.0 in
Precipitation this month

Ten-day blocks vs climate normal

PeriodForecast highNormalDifference
11 October – 20 October79.8°77.2°+1.4°
21 October – 30 October79.9°72.3°+4.2°
31 October – 9 Novemberat normal67.8°—

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).

Mon, 1268° / 51°0.02Light rain
68 °Light rain

Newcastle, Monday, 12 October

Light rain. High 68°, low 51°.

Pressure29.85 inHg
Wind8.2 mph S
Humidity46%
Visibility6.2 mi
Dew point45°
Tue, 1374° / 47°0Clear
74 °Clear

Newcastle, Tuesday, 13 October

Clear. High 74°, low 47°.

Pressure30.03 inHg
Wind5.5 mph W
Humidity25%
Visibility6.2 mi
Dew point31°
Wed, 1476° / 52°0Clear
76 °Clear

Newcastle, Wednesday, 14 October

Clear. High 76°, low 52°.

Pressure30.09 inHg
Wind3.8 mph W
Humidity24%
Visibility6.2 mi
Dew point33°
Thu, 1581° / 54°0Clear
81 °Clear

Newcastle, Thursday, 15 October

Clear. High 81°, low 54°.

Pressure30.09 inHg
Wind5.2 mph E
Humidity22%
Visibility—
Dew point29°
Fri, 1685° / 56°0Clear
85 °Clear

Newcastle, Friday, 16 October

Clear. High 85°, low 56°.

Pressure30.00 inHg
Wind5.8 mph E
Humidity20%
Visibility—
Dew point30°
Sat, 1790° / 64°0Clear
90 °Clear

Newcastle, Saturday, 17 October

Clear. High 90°, low 64°.

Pressure30.12 inHg
Wind5.7 mph E
Humidity12%
Visibility—
Dew point24°
Sun, 1888° / 64°0Clear
88 °Clear

Newcastle, Sunday, 18 October

Clear. High 88°, low 64°.

Pressure30.03 inHg
Wind6.2 mph SW
Humidity12%
Visibility—
Dew point23°
Mon, 1981° / 60°0Partly cloudy
81 °Partly cloudy

Newcastle, Monday, 19 October

Partly cloudy. High 81°, low 60°.

Pressure30.03 inHg
Wind6.5 mph W
Humidity30%
Visibility—
Dew point39°
Tue, 2081° / 58°0Mostly clear
81 °Mostly clear

Newcastle, Tuesday, 20 October

Mostly clear. High 81°, low 58°.

Pressure29.97 inHg
Wind6.1 mph W
Humidity16%
Visibility—
Dew point23°
Wed, 2181° / 58°0Clear
81 °Clear

Newcastle, Wednesday, 21 October

Clear. High 81°, low 58°.

Pressure29.94 inHg
Wind6.7 mph SW
Humidity16%
Visibility—
Dew point24°
Thu, 2274° / 56°0Clear
74 °Clear

Newcastle, Thursday, 22 October

Clear. High 74°, low 56°.

Pressure30.03 inHg
Wind7.7 mph SW
Humidity33%
Visibility—
Dew point37°
Fri, 2376° / 52°0Clear
76 °Clear

Newcastle, Friday, 23 October

Clear. High 76°, low 52°.

Pressure30.09 inHg
Wind6.2 mph W
Humidity23%
Visibility—
Dew point27°
Sat, 2480° / 55°0Clear
80 °Clear

Newcastle, Saturday, 24 October

Clear. High 80°, low 55°.

Pressure30.03 inHg
Wind5.2 mph E
Humidity15%
Visibility—
Dew point20°
Sun, 2583° / 57°0Clear
83 °Clear

Newcastle, Sunday, 25 October

Clear. High 83°, low 57°.

Pressure29.97 inHg
Wind5.1 mph W
Humidity15%
Visibility—
Dew point22°
Mon, 2685° / 61°0Clear
85 °Clear

Newcastle, Monday, 26 October

Clear. High 85°, low 61°.

Pressure29.97 inHg
Wind5 mph SW
Humidity14%
Visibility—
Dew point23°
From day 17 onward the outlook is built from 60-year climate statistics
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)
Mon, 0964° / 45°0.11Climate normal
64 °Climate normal

Newcastle, Monday, 9 November

Climate normal for this date — 60-year average.

Average high64°
Average low45°
Average precipitation0.11 in
Chance of precipitation28%
Record high78° (1976)
Record low34° (2020)

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.