Weather forecast for 10 daysGrand Terrace, CA

Weather forecast for the weekend

Sunday Oct 18, 2026

  • 86°F
  • 61°F
Sunny
Sunny
  • Precip. probability: 0%
  • Precipitation: 0"
  • Wind: 8mphNW 317°
  • Humidity: 21%
  • UV index: 6
  • Sunrise: 6:57 am PDT
  • Sunset: 6:11 pm PDT
  • ▼
Today, in Grand Terrace, the weather remains calm, bright, and sunny.
Anticipated temperature values will span from a humid 86°F down to a comfortable 60.8°F.
Expect a hotter feel as the forecasted high matches September's 87.4°F, rather than October's average of 78.1°F.
Sunrise was at 6:57 am and sunset will be at 6:11 pm; the daylight will last for 11h and 14min.

10-day overview

Daily temperatures

Warmest period: today - tomorrow 86°C.
Coldest day: Thursday 66°C.

Chance of precipitation

Highest chance: Thursday 80%.

Long-term weather forecast

  • Sunday
  • Oct 18, 2026
  • 86°F
  • 61°F
Sunny
Sunny
  • Precip. probability: 0%
  • Precipitation: 0"
  • Wind: 8mphNW 317°
  • Humidity: 21%
  • UV index: 6
  • Sunrise: 6:57 am PDT
  • Sunset: 6:11 pm PDT
  • ▼
  • Monday
  • Oct 19, 2026
  • 86°F
  • 59°F
Sunny
Sunny
  • Precip. probability: 0%
  • Precipitation: 0"
  • Wind: 11mphW 269°
  • Humidity: 33%
  • UV index: 6
  • Sunrise: 6:57 am PDT
  • Sunset: 6:10 pm PDT
  • ▼
  • Tuesday
  • Oct 20, 2026
  • 82°F
  • 59°F
Mostly Sunny
Mostly Sunny
  • Precip. probability: 2%
  • Precipitation: 0"
  • Wind: 11mphSSW 197°
  • Humidity: 45%
  • UV index: 6
  • Sunrise: 6:58 am PDT
  • Sunset: 6:09 pm PDT
  • ▼
  • Wednesday
  • Oct 21, 2026
  • 77°F
  • 55°F
PM Showers
PM Showers
  • Precip. probability: 47%
  • Precipitation: 0.47"
  • Wind: 11mphSSW 196°
  • Humidity: 60%
  • UV index: 6
  • Sunrise: 6:59 am PDT
  • Sunset: 6:08 pm PDT
  • ▼
  • Thursday
  • Oct 22, 2026
  • 66°F
  • 52°F
Thunderstorms
Thunderstorms
  • Precip. probability: 80%
  • Precipitation: 0.2"
  • Wind: 7mphSSW 209°
  • Humidity: 74%
  • UV index: 5
  • Sunrise: 7:00 am PDT
  • Sunset: 6:06 pm PDT
  • ▼
  • Friday
  • Oct 23, 2026
  • 72°F
  • 54°F
Sunny
Sunny
  • Precip. probability: 6%
  • Precipitation: 0"
  • Wind: 7mphNNW 337°
  • Humidity: 64%
  • UV index: 5
  • Sunrise: 7:01 am PDT
  • Sunset: 6:05 pm PDT
  • ▼
  • Saturday
  • Oct 24, 2026
  • 79°F
  • 55°F
Sunny
Sunny
  • Precip. probability: 1%
  • Precipitation: 0"
  • Wind: 7mphNNE 13°
  • Humidity: 42%
  • UV index: 5
  • Sunrise: 7:02 am PDT
  • Sunset: 6:04 pm PDT
  • ▼
  • Sunday
  • Oct 25, 2026
  • 79°F
  • 54°F
Partly Cloudy
Partly Cloudy
  • Precip. probability: 4%
  • Precipitation: 0"
  • Wind: 8mphN 10°
  • Humidity: 43%
  • UV index: 5
  • Sunrise: 7:02 am PDT
  • Sunset: 6:03 pm PDT
  • ▼
  • Monday
  • Oct 26, 2026
  • 77°F
  • 54°F
Partly Cloudy
Partly Cloudy
  • Precip. probability: 9%
  • Precipitation: 0"
  • Wind: 9mphSSW 207°
  • Humidity: 50%
  • UV index: 5
  • Sunrise: 7:03 am PDT
  • Sunset: 6:02 pm PDT
  • ▼
  • Tuesday
  • Oct 27, 2026
  • 73°F
  • 54°F
Mostly Sunny
Mostly Sunny
  • Precip. probability: 2%
  • Precipitation: 0"
  • Wind: 8mphSSE 156°
  • Humidity: 50%
  • UV index: 5
  • Sunrise: 7:04 am PDT
  • Sunset: 6:01 pm PDT
  • ▼
The weather will be unstable for the next ten days, and a mix of dry and sunny, overcast, damp and thunderstorm-prone weather is expected.
Rainfall is expected on Wednesday and Thursday.
Temperature fluctuation will be noticeable in the next ten days. Maximum temperatures are forecasted between 66.2°F and 86°F, while the lowest temperature will be between 51.8°F and 60.8°F.
The hottest days will be Sunday and Monday, with a maximum of 86°F; the lowest daytime temperature of the period will be reached on Thursday, peaking at 66.2°F.
Updated: Oct 18, 2026 @ 18:38:07 UTC
Published by: Weather U.S. | About Us
Data Sources | weather.com | Weather
Weather Forecasting & Climate

Frequently asked questions

On Sunday, skies will stay clear and sunny.

Today, the maximum temperature will be 86°F, while the minimum temperature will be 60.8°F.
The maximum temperature today will be a couple of degrees higher than the average highest temperature in October. The lowest temperature today will be also relatively higher than the average low temperature.

On Sunday, in Grand Terrace, sunrise was at 6:57 am and sunset will be at 6:11 pm (PDT).

In Grand Terrace, today, there will be 11h and 14min of daylight.