Weather forecast for 10 daysAlta Loma, CA
Weather forecast for the weekend
Sunday Oct 18, 2026
- 86°F
- 64°F
Sunny
- Precip. probability: 0%
- Precipitation: 0"
- Wind: 10mphW 262°
- Humidity: 28%
- UV index: 6
- Sunrise: 6:58 am PDT
- Sunset: 6:12 pm PDT
- details ▼
On Sunday, in Alta Loma, sunshine is forecasted under mostly clear skies.
The temperature will vary between a maximum of a tropical 86°F and a minimum of a comfortable 64.4°F.
Today, the maximum temperature of 86°F will resemble September's climate more than October's.
Sunrise will be at 6:58 am and sunset at 6:12 pm; the daylight will last for 11h and 14min.
The temperature will vary between a maximum of a tropical 86°F and a minimum of a comfortable 64.4°F.
Today, the maximum temperature of 86°F will resemble September's climate more than October's.
Sunrise will be at 6:58 am and sunset at 6:12 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.
Coldest day: Thursday 66°C.
Chance of precipitation
Highest chance: Wednesday 65%.
Long-term weather forecast
- Sunday
- Oct 18, 2026
- 86°F
- 64°F
Sunny
- Precip. probability: 0%
- Precipitation: 0"
- Wind: 10mphW 262°
- Humidity: 28%
- UV index: 6
- Sunrise: 6:58 am PDT
- Sunset: 6:12 pm PDT
- details ▼
- Monday
- Oct 19, 2026
- 86°F
- 63°F
Sunny
- Precip. probability: 0%
- Precipitation: 0"
- Wind: 12mphSW 216°
- Humidity: 31%
- UV index: 6
- Sunrise: 6:59 am PDT
- Sunset: 6:11 pm PDT
- details ▼
- Tuesday
- Oct 20, 2026
- 82°F
- 61°F
Sunny
- Precip. probability: 2%
- Precipitation: 0"
- Wind: 11mphSSW 197°
- Humidity: 42%
- UV index: 6
- Sunrise: 6:59 am PDT
- Sunset: 6:10 pm PDT
- details ▼
- Wednesday
- Oct 21, 2026
- 77°F
- 59°F
Rain
- Precip. probability: 65%
- Precipitation: 0.55"
- Wind: 12mphS 191°
- Humidity: 58%
- UV index: 6
- Sunrise: 7:00 am PDT
- Sunset: 6:09 pm PDT
- details ▼
- Thursday
- Oct 22, 2026
- 66°F
- 55°F
Scattered Thunderstorms
- Precip. probability: 63%
- Precipitation: 0.16"
- Wind: 9mphSW 215°
- Humidity: 72%
- UV index: 5
- Sunrise: 7:01 am PDT
- Sunset: 6:07 pm PDT
- details ▼
- Friday
- Oct 23, 2026
- 72°F
- 57°F
Sunny
- Precip. probability: 5%
- Precipitation: 0"
- Wind: 8mphWNW 282°
- Humidity: 59%
- UV index: 5
- Sunrise: 7:02 am PDT
- Sunset: 6:06 pm PDT
- details ▼
- Saturday
- Oct 24, 2026
- 79°F
- 59°F
Sunny
- Precip. probability: 1%
- Precipitation: 0"
- Wind: 8mphN 353°
- Humidity: 40%
- UV index: 5
- Sunrise: 7:03 am PDT
- Sunset: 6:05 pm PDT
- details ▼
- Sunday
- Oct 25, 2026
- 77°F
- 57°F
Partly Cloudy
- Precip. probability: 4%
- Precipitation: 0"
- Wind: 10mphW 265°
- Humidity: 43%
- UV index: 5
- Sunrise: 7:04 am PDT
- Sunset: 6:04 pm PDT
- details ▼
- Monday
- Oct 26, 2026
- 73°F
- 55°F
Mostly Sunny
- Precip. probability: 14%
- Precipitation: 0"
- Wind: 10mphWSW 251°
- Humidity: 49%
- UV index: 5
- Sunrise: 7:05 am PDT
- Sunset: 6:03 pm PDT
- details ▼
- Tuesday
- Oct 27, 2026
- 72°F
- 55°F
Partly Cloudy
- Precip. probability: 1%
- Precipitation: 0"
- Wind: 9mphWSW 257°
- Humidity: 49%
- UV index: 5
- Sunrise: 7:05 am PDT
- Sunset: 6:02 pm PDT
- details ▼
And a mix of sun-filled, overcast, rainy and storm-filled weather is anticipated.
Rain is forecasted for Wednesday and Thursday.
Temperature fluctuation will be noticeable over the next several days. The maximum temperature will vary between 66.2°F and 86°F, while the forecast minimum temperature falls between 55.4°F and 64.4°F.
With a maximum temperature of 86°F, Sunday and Monday will be the hottest days in Alta Loma; expect the coldest day on Thursday with a high of 66.2°F.
Rain is forecasted for Wednesday and Thursday.
Temperature fluctuation will be noticeable over the next several days. The maximum temperature will vary between 66.2°F and 86°F, while the forecast minimum temperature falls between 55.4°F and 64.4°F.
With a maximum temperature of 86°F, Sunday and Monday will be the hottest days in Alta Loma; expect the coldest day on Thursday with a high of 66.2°F.
Updated: Oct 18, 2026 @ 10:59:48 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
On Sunday, in Alta Loma, sunny and dry conditions are anticipated.
Today, the highest temperature will be 86°F, while the lowest temperature will be 64.4°F.
The highest temperature today will be a few degrees higher than the average maximum temperature in October. Today, the lowest temperature will be also relatively higher than the average low temperature.
The highest temperature today will be a few degrees higher than the average maximum temperature in October. Today, the lowest temperature will be also relatively higher than the average low temperature.
On Sunday, in Alta Loma, sunrise will be at 6:58 am and sunset at 6:12 pm (PDT).
In Alta Loma, the length of the day today will be 11h and 14min.
