Weather forecast for 10 daysSan Bernardino, CA
Weather forecast for the weekend
Sunday Oct 18, 2026
- 88°F
- 61°F
Sunny
- Precip. probability: 0%
- Precipitation: 0"
- Wind: 7mphS 184°
- Humidity: 30%
- UV index: 6
- Sunrise: 6:57 am PDT
- Sunset: 6:11 pm PDT
- details ▼
On Sunday, October 18, sunshine will likely continue with scattered clouds at most.
A wide temperature range is expected, from a high of a tropical 87.8°F to a low of a breezy 60.8°F.
Weather conditions lean hotter, with the temperature tracking September's average high of 87.4°F.
Sunrise will be at 6:57 am and sunset at 6:11 pm; the daylight will last for 11h and 14min.
A wide temperature range is expected, from a high of a tropical 87.8°F to a low of a breezy 60.8°F.
Weather conditions lean hotter, with the temperature tracking September's average high of 87.4°F.
Sunrise will be at 6:57 am and sunset at 6:11 pm; the daylight will last for 11h and 14min.
10-day overview
Daily temperatures
Warmest day: today 88°C.
Coldest day: Thursday 66°C.
Coldest day: Thursday 66°C.
Chance of precipitation
Highest chance: Thursday 76%.
Long-term weather forecast
- Sunday
- Oct 18, 2026
- 88°F
- 61°F
Sunny
- Precip. probability: 0%
- Precipitation: 0"
- Wind: 7mphS 184°
- Humidity: 30%
- UV index: 6
- Sunrise: 6:57 am PDT
- Sunset: 6:11 pm PDT
- details ▼
- Monday
- Oct 19, 2026
- 86°F
- 59°F
Sunny
- Precip. probability: 0%
- Precipitation: 0"
- Wind: 10mphSW 230°
- Humidity: 32%
- UV index: 6
- Sunrise: 6:57 am PDT
- Sunset: 6:10 pm PDT
- details ▼
- Tuesday
- Oct 20, 2026
- 82°F
- 59°F
Mostly Sunny
- Precip. probability: 5%
- Precipitation: 0"
- Wind: 10mphSSW 198°
- Humidity: 43%
- UV index: 6
- Sunrise: 6:58 am PDT
- Sunset: 6:09 pm PDT
- details ▼
- Wednesday
- Oct 21, 2026
- 77°F
- 57°F
PM Showers
- Precip. probability: 55%
- Precipitation: 0.51"
- Wind: 11mphS 191°
- Humidity: 58%
- UV index: 6
- Sunrise: 6:59 am PDT
- Sunset: 6:07 pm PDT
- details ▼
- Thursday
- Oct 22, 2026
- 66°F
- 52°F
Thunderstorms
- Precip. probability: 76%
- Precipitation: 0.2"
- Wind: 8mphSSW 203°
- Humidity: 76%
- UV index: 5
- Sunrise: 7:00 am PDT
- Sunset: 6:06 pm PDT
- details ▼
- Friday
- Oct 23, 2026
- 70°F
- 54°F
Sunny
- Precip. probability: 6%
- Precipitation: 0"
- Wind: 7mphNW 323°
- Humidity: 65%
- UV index: 5
- Sunrise: 7:01 am PDT
- Sunset: 6:05 pm PDT
- details ▼
- Saturday
- Oct 24, 2026
- 79°F
- 55°F
Sunny
- Precip. probability: 1%
- Precipitation: 0"
- Wind: 7mphN 6°
- Humidity: 43%
- UV index: 5
- Sunrise: 7:02 am PDT
- Sunset: 6:04 pm PDT
- details ▼
- Sunday
- Oct 25, 2026
- 77°F
- 55°F
Partly Cloudy
- Precip. probability: 4%
- Precipitation: 0"
- Wind: 8mphNNW 344°
- Humidity: 45%
- UV index: 5
- Sunrise: 7:02 am PDT
- Sunset: 6:03 pm PDT
- details ▼
- Monday
- Oct 26, 2026
- 73°F
- 54°F
Mostly Sunny
- Precip. probability: 10%
- Precipitation: 0"
- Wind: 9mphSSW 192°
- Humidity: 52%
- UV index: 5
- Sunrise: 7:03 am PDT
- Sunset: 6:02 pm PDT
- details ▼
- Tuesday
- Oct 27, 2026
- 72°F
- 54°F
Mostly Sunny
- Precip. probability: 1%
- Precipitation: 0"
- Wind: 7mphS 177°
- Humidity: 52%
- UV index: 5
- Sunrise: 7:04 am PDT
- Sunset: 6:01 pm PDT
- details ▼
Mixed conditions are forecasted for the coming ten days, and a combination of primarily bright and occasionally damp, storm-filled and dull weather is expected.
Rainfall is forecasted for Wednesday and Thursday.
Temperature differences will be noticeable in the next ten days. The temperature is expected to swing from 66.2°F up to 87.8°F, while the low temperature range extends from 51.8°F to 60.8°F.
Today is the hottest day, with a maximum temperature of 87.8°F; with the highest temperature of 66.2°F, Thursday will be the coldest day.
Rainfall is forecasted for Wednesday and Thursday.
Temperature differences will be noticeable in the next ten days. The temperature is expected to swing from 66.2°F up to 87.8°F, while the low temperature range extends from 51.8°F to 60.8°F.
Today is the hottest day, with a maximum temperature of 87.8°F; with the highest temperature of 66.2°F, Thursday will be the coldest day.
Updated: Oct 18, 2026 @ 13:32:31 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 San Bernardino, sunny skies and pleasant visibility are expected.
Today, the highest temperature will be 87.8°F, while the lowest temperature will be 60.8°F.
The maximum temperature today will be significantly higher than the average highest temperature of 78.1°F in October. The lowest temperature will be moderately higher than the average low of 56.3°F.
The maximum temperature today will be significantly higher than the average highest temperature of 78.1°F in October. The lowest temperature will be moderately higher than the average low of 56.3°F.
On Sunday, in San Bernardino, sunrise will be at 6:57 am and sunset at 6:11 pm (PDT).
In San Bernardino, the length of the day today will be 11h and 14min.
