10-day forecast for Newcastle, CA: 43° to 73°, with precipitation expected on 2 days. The table below breaks each day into morning, afternoon, evening and overnight.
73°
Best day: Sunday, November 8
59° · 0.18 in
Worst day: Tuesday, November 3
Tap any day below to see morning, afternoon, evening and overnight.
Sat, 3165° / 51°0.1
Morning51°feels 50°
Afternoon63°feels 62°
Evening54°feels 52°
Overnight51°feels 49°
65 °
Newcastle, Saturday, 31 October
Light rain. High 65°, low 51°.
Pressure29.91 inHg
Wind9.2 mph S
Humidity69%
Visibility6.2 mi
Dew point50°
Sun, 0163° / 46°0
Morning48°feels 47°
Afternoon62°feels 60°
Evening54°feels 52°
Overnight52°feels 51°
63 °
Newcastle, Sunday, 1 November
Clear. High 63°, low 46°.
Pressure30.00 inHg
Wind4.1 mph W
Humidity52%
Visibility6.2 mi
Dew point42°
Mon, 0264° / 43°0
Morning45°feels 41°
Afternoon64°feels 62°
Evening56°feels 54°
Overnight47°feels 46°
64 °
Newcastle, Monday, 2 November
Overcast. High 64°, low 43°.
Pressure30.18 inHg
Wind5.1 mph S
Humidity43%
Visibility6.2 mi
Dew point39°
Tue, 0359° / 48°0.18
Morning50°feels 46°
Afternoon57°feels 56°
Evening55°feels 55°
Overnight52°feels 50°
59 °
Newcastle, Tuesday, 3 November
Light rain. High 59°, low 48°.
Pressure30.09 inHg
Wind5.1 mph S
Humidity69%
Visibility6.2 mi
Dew point48°
Wed, 0466° / 45°0
Morning49°feels 46°
Afternoon58°feels 56°
Evening63°feels 61°
Overnight48°feels 46°
66 °
Newcastle, Wednesday, 4 November
Clear. High 66°, low 45°.
Pressure30.03 inHg
Wind7.3 mph W
Humidity66%
Visibility—
Dew point44°
Thu, 0569° / 48°0
Morning53°feels 51°
Afternoon64°feels 62°
Evening65°feels 63°
Overnight54°feels 52°
69 °
Newcastle, Thursday, 5 November
Overcast. High 69°, low 48°.
Pressure29.97 inHg
Wind6.6 mph E
Humidity43%
Visibility—
Dew point38°
Fri, 0667° / 52°0.03
Morning58°feels 57°
Afternoon61°feels 60°
Evening64°feels 62°
Overnight53°feels 50°
67 °
Newcastle, Friday, 6 November
Light rain. High 67°, low 52°.
Pressure30.12 inHg
Wind8.3 mph NW
Humidity75%
Visibility—
Dew point51°
Sat, 0769° / 48°0
Morning52°feels 50°
Afternoon62°feels 59°
Evening63°feels 60°
Overnight54°feels 51°
69 °
Newcastle, Saturday, 7 November
Clear. High 69°, low 48°.
Pressure30.15 inHg
Wind4.8 mph NE
Humidity21%
Visibility—
Dew point20°
Sun, 0873° / 52°0
Morning58°feels 55°
Afternoon67°feels 65°
Evening67°feels 64°
Overnight58°feels 55°
73 °
Newcastle, Sunday, 8 November
Mostly clear. High 73°, low 52°.
Pressure30.15 inHg
Wind4.3 mph E
Humidity20%
Visibility—
Dew point23°
About this forecast
How reliable is a 10-day forecast?
The first 3–5 days are the most reliable, typically within 2–4°. From day six to ten the models show the trend: the direction of change is right more often than the exact numbers.
What does the time-of-day table show?
Temperature in Newcastle, CA around 8am, 2pm, 8pm and 2am each day — handy for planning a walk, a drive or work outdoors.
How is the best day chosen?
We weigh the daytime high against precipitation: a warm, dry day scores highest.