Weather forecast for tomorrowRancho Santa Margarita, CA
Weather forecast for tomorrow
Monday Oct 19, 2026
- 84°F
- 57°F
Sunny
- Precip. probability: 0%
- Precipitation: 0"
- Wind: 9mphSSW 203°
- Humidity: 42%
- UV index: 6
- Sunrise: 6:58 am PDT
- Sunset: 6:11 pm PDT
- details ▼
On Monday, in Rancho Santa Margarita, expect consistent sunshine and open skies.
Temperature measurements will peak at a moderately hot 84.2°F, with a considerable drop to a low of a moderate 57.2°F.
The maximum heat index, which modifies the air temperature to account for humidity, is evaluated at 84.2°F.
The temperature of 84.2°F aligns more with what is typical in September than what is normal in October.
Sunrise will be at 6:58 am and sunset at 6:11 pm; tomorrow's daylight will last for 11h and 13min.
Temperature measurements will peak at a moderately hot 84.2°F, with a considerable drop to a low of a moderate 57.2°F.
The maximum heat index, which modifies the air temperature to account for humidity, is evaluated at 84.2°F.
The temperature of 84.2°F aligns more with what is typical in September than what is normal in October.
Sunrise will be at 6:58 am and sunset at 6:11 pm; tomorrow's daylight will last for 11h and 13min.
Hourly overview
Hourly temperatures
Warmest hour: 3 pm 82°C.
Coldest hour: 6 am 59°C.
Coldest hour: 6 am 59°C.
Chance of precipitation
Highest chance: 9 pm 4%.
Hourly weather forecast
- 12 am
- 64°F
- Feels like:64°F
Clear
- Precip. probability: 0%
- Precipitation: 0"
- Wind: 1mphSE 125°
- Humidity: 56%
- Pressure: 29.91"Hg
- Visibility: 8mi
- UV index: 0
- details ▼
- 2 am
- 63°F
- Feels like:63°F
Clear
- Precip. probability: 0%
- Precipitation: 0"
- Wind: 1mphE 92°
- Humidity: 62%
- Pressure: 29.91"Hg
- Visibility: 8mi
- UV index: 0
- details ▼
- 4 am
- 61°F
- Feels like:61°F
Clear
- Precip. probability: 0%
- Precipitation: 0"
- Wind: 1mphENE 66°
- Humidity: 64%
- Pressure: 29.88"Hg
- Visibility: 7mi
- UV index: 0
- details ▼
- 6 am
- 59°F
- Feels like:59°F
Clear
- Precip. probability: 0%
- Precipitation: 0"
- Wind: 1mphENE 69°
- Humidity: 63%
- Pressure: 29.91"Hg
- Visibility: 7mi
- UV index: 0
- details ▼
Sunrise: 6:58 am
- 8 am
- 64°F
- Feels like:64°F
Sunny
- Precip. probability: 0%
- Precipitation: 0"
- Wind: 1mphENE 75°
- Humidity: 54%
- Pressure: 29.91"Hg
- Visibility: 7mi
- UV index: 0
- details ▼
- 10 am
- 77°F
- Feels like:77°F
Sunny
- Precip. probability: 0%
- Precipitation: 0"
- Wind: 2mphS 181°
- Humidity: 38%
- Pressure: 29.91"Hg
- Visibility: 7mi
- UV index: 3
- details ▼
- 12 pm
- 81°F
- Feels like:81°F
Sunny
- Precip. probability: 0%
- Precipitation: 0"
- Wind: 6mphSW 218°
- Humidity: 35%
- Pressure: 29.88"Hg
- Visibility: 8mi
- UV index: 6
- details ▼
- 2 pm
- 82°F
- Feels like:82°F
Sunny
- Precip. probability: 0%
- Precipitation: 0"
- Wind: 9mphSW 219°
- Humidity: 35%
- Pressure: 29.85"Hg
- Visibility: 7mi
- UV index: 5
- details ▼
- 4 pm
- 81°F
- Feels like:81°F
Sunny
- Precip. probability: 0%
- Precipitation: 0"
- Wind: 7mphSW 227°
- Humidity: 38%
- Pressure: 29.83"Hg
- Visibility: 7mi
- UV index: 2
- details ▼
- 6 pm
- 75°F
- Feels like:75°F
Sunny
- Precip. probability: 0%
- Precipitation: 0"
- Wind: 4mphSW 227°
- Humidity: 49%
- Pressure: 29.83"Hg
- Visibility: 8mi
- UV index: 0
- details ▼
Sunset: 6:11 pm
- 8 pm
- 68°F
- Feels like:68°F
Clear
- Precip. probability: 2%
- Precipitation: 0"
- Wind: 2mphS 182°
- Humidity: 70%
- Pressure: 29.85"Hg
- Visibility: 8mi
- UV index: 0
- details ▼
- 10 pm
- 64°F
- Feels like:64°F
Mostly Clear
- Precip. probability: 4%
- Precipitation: 0"
- Wind: 2mphSE 140°
- Humidity: 79%
- Pressure: 29.85"Hg
- Visibility: 8mi
- UV index: 0
- details ▼
Tomorrow, on Monday, primarily dry and sunny and occasionally cloudy weather is anticipated.
The temperature will vary between the lowest temperature of 59°F and the highest temperature of 82.4°F. The warmest part of the day will be from 1 pm to 3 pm.
The forecasted maximum is more alike with September's typical high of 79.7°F than the average for October. The expected low will be in line with the average minimum in October, which is 60.1°F.
The temperature will vary between the lowest temperature of 59°F and the highest temperature of 82.4°F. The warmest part of the day will be from 1 pm to 3 pm.
The forecasted maximum is more alike with September's typical high of 79.7°F than the average for October. The expected low will be in line with the average minimum in October, which is 60.1°F.
Updated: Oct 18, 2026 @ 19:15:25 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, conditions will remain bright with clear skies.
Tomorrow, the maximum temperature will be 84.2°F, while the minimum temperature will be 57.2°F. The maximum heat index, which modifies the air temperature to account for humidity, is computed to be 84.2°F.
The maximum temperature will be slightly warmer than the average highest temperature of 75.2°F in October. The lowest temperature will be in line with the average low of 60.1°F.
The maximum temperature will be slightly warmer than the average highest temperature of 75.2°F in October. The lowest temperature will be in line with the average low of 60.1°F.
On Monday, in Rancho Santa Margarita, sunrise will be at 6:58 am and sunset at 6:11 pm (PDT).
In Rancho Santa Margarita, tomorrow, there will be 11h and 13min of daylight.
