10-day forecast for Newcastle, CA: 45° to 75°, with precipitation expected on 1 day. The table below breaks each day into morning, afternoon, evening and overnight.
75°
Best day: Sunday, November 8
63° · 0.32 in
Worst day: Tuesday, November 3
Tap any day below to see morning, afternoon, evening and overnight.
Tue, 0363° / 45°0.32
Morning54°feels 52°
Afternoon59°feels 59°
Evening53°feels 53°
Overnight48°feels 45°
63 °
Newcastle, Tuesday, 3 November
Rain. High 63°, low 45°.
Pressure30.09 inHg
Wind2.7 mph NW
Humidity87%
Visibility2.2 mi
Dew point52°
Wed, 0467° / 48°0
Morning51°feels 50°
Afternoon67°feels 65°
Evening53°feels 52°
Overnight51°feels 51°
67 °
Newcastle, Wednesday, 4 November
Clear. High 67°, low 48°.
Pressure30.03 inHg
Wind9.9 mph NW
Humidity54%
Visibility6.2 mi
Dew point46°
Thu, 0564° / 45°0
Morning50°feels 48°
Afternoon64°feels 63°
Evening53°feels 51°
Overnight48°feels 46°
64 °
Newcastle, Thursday, 5 November
Clear. High 64°, low 45°.
Pressure30.09 inHg
Wind3.6 mph W
Humidity52%
Visibility6.2 mi
Dew point45°
Fri, 0667° / 46°0
Morning53°feels 51°
Afternoon63°feels 61°
Evening64°feels 62°
Overnight52°feels 51°
67 °
Newcastle, Friday, 6 November
Overcast. High 67°, low 46°.
Pressure30.18 inHg
Wind5.5 mph NE
Humidity49%
Visibility—
Dew point41°
Sat, 0771° / 49°0
Morning55°feels 53°
Afternoon67°feels 65°
Evening68°feels 67°
Overnight57°feels 55°
71 °
Newcastle, Saturday, 7 November
Clear. High 71°, low 49°.
Pressure30.09 inHg
Wind6.3 mph E
Humidity46%
Visibility—
Dew point43°
Sun, 0875° / 56°0
Morning60°feels 57°
Afternoon70°feels 67°
Evening69°feels 68°
Overnight59°feels 57°
75 °
Newcastle, Sunday, 8 November
Overcast. High 75°, low 56°.
Pressure30.03 inHg
Wind4.3 mph E
Humidity27%
Visibility—
Dew point32°
Mon, 0972° / 57°0
Morning61°feels 58°
Afternoon68°feels 66°
Evening66°feels 64°
Overnight60°feels 58°
72 °
Newcastle, Monday, 9 November
Overcast. High 72°, low 57°.
Pressure30.00 inHg
Wind4.3 mph NE
Humidity30%
Visibility—
Dew point35°
Tue, 1074° / 56°0
Morning61°feels 58°
Afternoon69°feels 67°
Evening68°feels 66°
Overnight58°feels 56°
74 °
Newcastle, Tuesday, 10 November
Overcast. High 74°, low 56°.
Pressure30.06 inHg
Wind5.6 mph W
Humidity29%
Visibility—
Dew point34°
Wed, 1174° / 55°0
Morning59°feels 57°
Afternoon68°feels 66°
Evening68°feels 66°
Overnight58°feels 55°
74 °
Newcastle, Wednesday, 11 November
Clear. High 74°, low 55°.
Pressure30.12 inHg
Wind4.7 mph NE
Humidity26%
Visibility—
Dew point30°
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.