Weather forecast for tomorrowSouth San Gabriel, CA
Weather forecast for tomorrow
Monday Oct 19, 2026
- 86°F
- 63°F
Sunny
- Precip. probability: 2%
- Precipitation: 0"
- Wind: 7mphS 176°
- Humidity: 40%
- UV index: 6
- Sunrise: 7:01 am PDT
- Sunset: 6:13 pm PDT
- details ▼
Tomorrow, on Monday, October 19, the forecast calls for abundant sunshine.
The highest temperature will be a humid 86°F, while the lowest anticipated temperature is a comfortable 62.6°F.
The maximum heat index, which measures the combined effect of heat and moisture, is assessed at a hot 86°F. Note that heat index values are valued for light wind and location in the shade.
Expect a hotter feel as the forecasted high matches September's 85.5°F, rather than October's average of 79°F.
Sunrise will be at 7:01 am and sunset at 6:13 pm; tomorrow's daylight will last for 11h and 13min.
The highest temperature will be a humid 86°F, while the lowest anticipated temperature is a comfortable 62.6°F.
The maximum heat index, which measures the combined effect of heat and moisture, is assessed at a hot 86°F. Note that heat index values are valued for light wind and location in the shade.
Expect a hotter feel as the forecasted high matches September's 85.5°F, rather than October's average of 79°F.
Sunrise will be at 7:01 am and sunset at 6:13 pm; tomorrow's daylight will last for 11h and 13min.
Hourly overview
Hourly temperatures
Warmest hour: 3 pm 84°C.
Coldest hour: 6 am 64°C.
Coldest hour: 6 am 64°C.
Chance of precipitation
Highest chance: 2%.
Hourly weather forecast
- 12 am
- 70°F
- Feels like:70°F
Clear
- Precip. probability: 1%
- Precipitation: 0"
- Wind: 2mphE 92°
- Humidity: 57%
- Pressure: 29.91"Hg
- Visibility: 9mi
- UV index: 0
- details ▼
- 2 am
- 68°F
- Feels like:68°F
Clear
- Precip. probability: 1%
- Precipitation: 0"
- Wind: 2mphE 81°
- Humidity: 57%
- Pressure: 29.91"Hg
- Visibility: 9mi
- UV index: 0
- details ▼
- 4 am
- 64°F
- Feels like:64°F
Clear
- Precip. probability: 2%
- Precipitation: 0"
- Wind: 2mphENE 71°
- Humidity: 59%
- Pressure: 29.88"Hg
- Visibility: 9mi
- UV index: 0
- details ▼
- 6 am
- 64°F
- Feels like:64°F
Clear
- Precip. probability: 2%
- Precipitation: 0"
- Wind: 2mphENE 70°
- Humidity: 59%
- Pressure: 29.91"Hg
- Visibility: 9mi
- UV index: 0
- details ▼
Sunrise: 7:01 am
- 8 am
- 66°F
- Feels like:66°F
Sunny
- Precip. probability: 1%
- Precipitation: 0"
- Wind: 2mphE 81°
- Humidity: 56%
- Pressure: 29.91"Hg
- Visibility: 9mi
- UV index: 0
- details ▼
- 10 am
- 75°F
- Feels like:75°F
Sunny
- Precip. probability: 0%
- Precipitation: 0"
- Wind: 2mphSSE 150°
- Humidity: 41%
- Pressure: 29.91"Hg
- Visibility: 9mi
- UV index: 3
- details ▼
- 12 pm
- 82°F
- Feels like:82°F
Sunny
- Precip. probability: 0%
- Precipitation: 0"
- Wind: 4mphS 174°
- Humidity: 32%
- Pressure: 29.88"Hg
- Visibility: 10mi
- UV index: 6
- details ▼
- 2 pm
- 84°F
- Feels like:84°F
Sunny
- Precip. probability: 0%
- Precipitation: 0"
- Wind: 6mphSSW 197°
- Humidity: 31%
- Pressure: 29.85"Hg
- Visibility: 10mi
- UV index: 5
- details ▼
- 4 pm
- 84°F
- Feels like:84°F
Sunny
- Precip. probability: 0%
- Precipitation: 0"
- Wind: 7mphSW 219°
- Humidity: 36%
- Pressure: 29.83"Hg
- Visibility: 10mi
- UV index: 2
- details ▼
- 6 pm
- 79°F
- Feels like:81°F
Sunny
- Precip. probability: 0%
- Precipitation: 0"
- Wind: 6mphSW 234°
- Humidity: 42%
- Pressure: 29.8"Hg
- Visibility: 10mi
- UV index: 0
- details ▼
Sunset: 6:13 pm
- 8 pm
- 73°F
- Feels like:73°F
Clear
- Precip. probability: 1%
- Precipitation: 0"
- Wind: 4mphSW 215°
- Humidity: 57%
- Pressure: 29.83"Hg
- Visibility: 10mi
- UV index: 0
- details ▼
- 10 pm
- 70°F
- Feels like:70°F
Clear
- Precip. probability: 3%
- Precipitation: 0"
- Wind: 3mphSSE 168°
- Humidity: 70%
- Pressure: 29.85"Hg
- Visibility: 9mi
- UV index: 0
- details ▼
Tomorrow, on Monday, sunny conditions are likely to prevail.
The temperature will be between a minimum of 64.4°F and a maximum of 84.2°F. The hottest part of the day will be from 1 pm to 4 pm.
The day’s peak temperature will reflect September's norm of 85.5°F more than October's 79°F. The night temperature will be in line with the standard October low of 59.4°F.
The temperature will be between a minimum of 64.4°F and a maximum of 84.2°F. The hottest part of the day will be from 1 pm to 4 pm.
The day’s peak temperature will reflect September's norm of 85.5°F more than October's 79°F. The night temperature will be in line with the standard October low of 59.4°F.
Updated: Oct 18, 2026 @ 16:40:14 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 Monday, in South San Gabriel, the weather remains calm, bright, and sunny.
Tomorrow, the maximum temperature in South San Gabriel will be 86°F, while the minimum temperature will be 62.6°F. The maximum heat index, which calculates the temperature value influenced by the moisture in the air, is estimated at 86°F.
The maximum temperature will be a few degrees higher than the average highest temperature of 79°F in October. The lowest temperature will be in line with the average low of 59.4°F.
The maximum temperature will be a few degrees higher than the average highest temperature of 79°F in October. The lowest temperature will be in line with the average low of 59.4°F.
On Monday, in South San Gabriel, sunrise will be at 7:01 am and sunset at 6:13 pm (PDT).
In South San Gabriel, the length of the day tomorrow will be 11h and 13min.
