Weather forecast for 10 daysNewcastle, CA
Weather forecast for the weekend
Sunday Oct 18, 2026
- 84°F
- 52°F
Sunny
- Precip. probability: 0%
- Precipitation: 0"
- Wind: 8mphS 175°
- Humidity: 25%
- UV index: 5
- Sunrise: 7:17 am PDT
- Sunset: 6:21 pm PDT
- details ▼
On Sunday, October 18, conditions will remain bright with clear skies.
The highest daytime temperature will touch a moderately hot 84.2°F, creating a significant contrast with the anticipated nighttime low of a cool 51.8°F.
Tomorrow, the weather pattern will resemble September more than October, with a forecast high of 84.2°F.
Sunrise will be at 7:17 am and sunset at 6:21 pm; tomorrow's daylight will last for 11h and 5min.
The highest daytime temperature will touch a moderately hot 84.2°F, creating a significant contrast with the anticipated nighttime low of a cool 51.8°F.
Tomorrow, the weather pattern will resemble September more than October, with a forecast high of 84.2°F.
Sunrise will be at 7:17 am and sunset at 6:21 pm; tomorrow's daylight will last for 11h and 5min.
10-day overview
Daily temperatures
Warmest day: tomorrow 84°C.
Coldest day: Thursday 64°C.
Coldest day: Thursday 64°C.
Chance of precipitation
Highest chance: Wednesday - Thursday 39%.
Long-term weather forecast
- Saturday
- Oct 17, 2026
- min.
- 61°F
Clear
- Precip. probability: 0%
- Precipitation: 0"
- Wind: 7mphE 92°
- Humidity: 30%
- UV index: 0
- Sunrise: 7:16 am PDT
- Sunset: 6:23 pm PDT
- details ▼
- Sunday
- Oct 18, 2026
- 84°F
- 52°F
Sunny
- Precip. probability: 0%
- Precipitation: 0"
- Wind: 8mphS 175°
- Humidity: 25%
- UV index: 5
- Sunrise: 7:17 am PDT
- Sunset: 6:21 pm PDT
- details ▼
- Monday
- Oct 19, 2026
- 72°F
- 50°F
Partly Cloudy
- Precip. probability: 2%
- Precipitation: 0"
- Wind: 9mphS 179°
- Humidity: 45%
- UV index: 5
- Sunrise: 7:18 am PDT
- Sunset: 6:20 pm PDT
- details ▼
- Tuesday
- Oct 20, 2026
- 72°F
- 57°F
Mostly Cloudy
- Precip. probability: 2%
- Precipitation: 0"
- Wind: 6mphWSW 242°
- Humidity: 45%
- UV index: 3
- Sunrise: 7:19 am PDT
- Sunset: 6:19 pm PDT
- details ▼
- Wednesday
- Oct 21, 2026
- 68°F
- 55°F
PM Showers
- Precip. probability: 39%
- Precipitation: 0.16"
- Wind: 6mphSSE 166°
- Humidity: 53%
- UV index: 3
- Sunrise: 7:20 am PDT
- Sunset: 6:17 pm PDT
- details ▼
- Thursday
- Oct 22, 2026
- 64°F
- 54°F
Showers
- Precip. probability: 39%
- Precipitation: 0.08"
- Wind: 7mphSSW 196°
- Humidity: 72%
- UV index: 3
- Sunrise: 7:21 am PDT
- Sunset: 6:16 pm PDT
- details ▼
- Friday
- Oct 23, 2026
- 70°F
- 50°F
Sunny
- Precip. probability: 17%
- Precipitation: 0"
- Wind: 6mphSW 219°
- Humidity: 64%
- UV index: 4
- Sunrise: 7:22 am PDT
- Sunset: 6:15 pm PDT
- details ▼
- Saturday
- Oct 24, 2026
- 70°F
- 52°F
Partly Cloudy
- Precip. probability: 4%
- Precipitation: 0"
- Wind: 6mphSSW 194°
- Humidity: 52%
- UV index: 4
- Sunrise: 7:23 am PDT
- Sunset: 6:13 pm PDT
- details ▼
- Sunday
- Oct 25, 2026
- 70°F
- 50°F
Partly Cloudy
- Precip. probability: 23%
- Precipitation: 0"
- Wind: 7mphSSW 194°
- Humidity: 49%
- UV index: 4
- Sunrise: 7:24 am PDT
- Sunset: 6:12 pm PDT
- details ▼
- Monday
- Oct 26, 2026
- 68°F
- 48°F
Partly Cloudy
- Precip. probability: 16%
- Precipitation: 0"
- Wind: 7mphSSW 210°
- Humidity: 45%
- UV index: 4
- Sunrise: 7:25 am PDT
- Sunset: 6:11 pm PDT
- details ▼
cloud-filled, clear and damp weather is predicted.
Rainfall is expected on Wednesday and Thursday.
The temperature will vary considerably in the next ten days. The maximum temperature will vary between 64.4°F and 84.2°F, while the fluctuation in night temperatures will be also significant, as temperatures overnight will fluctuate from 48.2°F up to 60.8°F.
The hottest day will be Sunday, with a maximum of 84.2°F; the coldest day will be Thursday, with a maximum of 64.4°F.
Rainfall is expected on Wednesday and Thursday.
The temperature will vary considerably in the next ten days. The maximum temperature will vary between 64.4°F and 84.2°F, while the fluctuation in night temperatures will be also significant, as temperatures overnight will fluctuate from 48.2°F up to 60.8°F.
The hottest day will be Sunday, with a maximum of 84.2°F; the coldest day will be Thursday, with a maximum of 64.4°F.
Updated: Oct 18, 2026 @ 05:22:13 UTC
Published by: Weather U.S. | About Us
Data Sources | weather.com | Weather
Weather Forecasting & Climate
Published by: Weather U.S. | About Us
Data Sources | weather.com | Weather
Weather Forecasting & Climate
Frequently asked questions
Tomorrow, sunshine is expected with little to no cloud cover.
Tomorrow, the highest temperature will be 84.2°F, while the lowest temperature will be 51.8°F.
Tomorrow, the maximum temperature will be uncommonly higher than the average highest temperature of 73.6°F in October. Tomorrow, the lowest temperature will be in line with the average low temperature.
Tomorrow, the maximum temperature will be uncommonly higher than the average highest temperature of 73.6°F in October. Tomorrow, the lowest temperature will be in line with the average low temperature.
On Sunday, in Newcastle, sunrise will be at 7:17 am and sunset at 6:21 pm (PDT).
Tomorrow, the daylight will last for 11h and 5min.
