Weather forecast for tomorrowRiverdale, CA
Weather forecast for tomorrow
Monday Oct 19, 2026
- 84°F
- 46°F
Mostly Sunny
- Precip. probability: 4%
- Precipitation: 0"
- Wind: 8mphNNW 333°
- Humidity: 42%
- UV index: 5
- Sunrise: 7:10 am PDT
- Sunset: 6:18 pm PDT
- details ▼
On Monday, October 19, mostly sunny weather is likely, with high visibility.
Day and night temperatures will contrast sharply, ranging from a peak of a temperate 84.2°F to a low of a frosty 46.4°F.
The maximum heat index, which measures the combined effect of heat and moisture, is assessed at 84.2°F.
The day’s top temperature is expected to be a few degrees higher than the typical October high of 80.4°F.
Sunrise will be at 7:10 am and sunset at 6:18 pm; tomorrow's daylight will last for 11h and 8min.
Day and night temperatures will contrast sharply, ranging from a peak of a temperate 84.2°F to a low of a frosty 46.4°F.
The maximum heat index, which measures the combined effect of heat and moisture, is assessed at 84.2°F.
The day’s top temperature is expected to be a few degrees higher than the typical October high of 80.4°F.
Sunrise will be at 7:10 am and sunset at 6:18 pm; tomorrow's daylight will last for 11h and 8min.
Hourly overview
Hourly temperatures
Warmest hour: 3 pm 81°C.
Coldest hour: 6 am 54°C.
Coldest hour: 6 am 54°C.
Chance of precipitation
Highest chance: 6 am 3%.
Hourly weather forecast
- 12 am
- 64°F
- Feels like:64°F
Clear
- Precip. probability: 0%
- Precipitation: 0"
- Wind: 9mphNW 315°
- Humidity: 45%
- Pressure: 29.91"Hg
- Visibility: 10mi
- UV index: 0
- details ▼
- 2 am
- 61°F
- Feels like:61°F
Clear
- Precip. probability: 0%
- Precipitation: 0"
- Wind: 7mphNW 323°
- Humidity: 50%
- Pressure: 29.91"Hg
- Visibility: 10mi
- UV index: 0
- details ▼
- 4 am
- 57°F
- Feels like:55°F
Clear
- Precip. probability: 1%
- Precipitation: 0"
- Wind: 7mphNW 309°
- Humidity: 59%
- Pressure: 29.91"Hg
- Visibility: 10mi
- UV index: 0
- details ▼
- 6 am
- 54°F
- Feels like:52°F
Clear
- Precip. probability: 3%
- Precipitation: 0"
- Wind: 7mphWNW 298°
- Humidity: 65%
- Pressure: 29.94"Hg
- Visibility: 10mi
- UV index: 0
- details ▼
Sunrise: 7:10 am
- 8 am
- 54°F
- Feels like:52°F
Mostly Sunny
- Precip. probability: 3%
- Precipitation: 0"
- Wind: 6mphNW 314°
- Humidity: 70%
- Pressure: 29.94"Hg
- Visibility: 9mi
- UV index: 0
- details ▼
- 10 am
- 64°F
- Feels like:64°F
Mostly Sunny
- Precip. probability: 0%
- Precipitation: 0"
- Wind: 8mphNNW 326°
- Humidity: 50%
- Pressure: 29.94"Hg
- Visibility: 10mi
- UV index: 2
- details ▼
- 12 pm
- 73°F
- Feels like:73°F
Mostly Sunny
- Precip. probability: 0%
- Precipitation: 0"
- Wind: 6mphNW 320°
- Humidity: 37%
- Pressure: 29.91"Hg
- Visibility: 10mi
- UV index: 5
- details ▼
- 2 pm
- 79°F
- Feels like:79°F
Partly Cloudy
- Precip. probability: 0%
- Precipitation: 0"
- Wind: 4mphNW 322°
- Humidity: 29%
- Pressure: 29.85"Hg
- Visibility: 10mi
- UV index: 4
- details ▼
- 4 pm
- 82°F
- Feels like:82°F
Sunny
- Precip. probability: 0%
- Precipitation: 0"
- Wind: 3mphN 1°
- Humidity: 25%
- Pressure: 29.8"Hg
- Visibility: 10mi
- UV index: 2
- details ▼
- 6 pm
- 77°F
- Feels like:77°F
Sunny
- Precip. probability: 0%
- Precipitation: 0"
- Wind: 5mphN 11°
- Humidity: 33%
- Pressure: 29.77"Hg
- Visibility: 10mi
- UV index: 0
- details ▼
Sunset: 6:18 pm
- 8 pm
- 68°F
- Feels like:68°F
Clear
- Precip. probability: 0%
- Precipitation: 0"
- Wind: 6mphNW 317°
- Humidity: 45%
- Pressure: 29.8"Hg
- Visibility: 10mi
- UV index: 0
- details ▼
- 10 pm
- 63°F
- Feels like:63°F
Clear
- Precip. probability: 0%
- Precipitation: 0"
- Wind: 9mphNW 308°
- Humidity: 51%
- Pressure: 29.83"Hg
- Visibility: 10mi
- UV index: 0
- details ▼
Tomorrow, primarily dry and sunny and occasionally cloudy weather is expected.
The temperature will be between the lowest temperature of 51.8°F and the highest temperature of 82.4°F. The warmest part of the day will be at 4 pm and 5 pm.
The temperature is expected to be slightly warmer than the average peak in October, which is 80.4°F. The minimum temperature will be more consistent with November's average low of 48.7°F than October's typical 56.5°F.
The temperature will be between the lowest temperature of 51.8°F and the highest temperature of 82.4°F. The warmest part of the day will be at 4 pm and 5 pm.
The temperature is expected to be slightly warmer than the average peak in October, which is 80.4°F. The minimum temperature will be more consistent with November's average low of 48.7°F than October's typical 56.5°F.
Updated: Oct 18, 2026 @ 07:46:29 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, expect brilliant sunshine under mostly clear skies.
Tomorrow, the highest temperature in Riverdale will be 84.2°F, while the lowest temperature will be 46.4°F. The maximum heat index, which factors the actual air temperature with the relative humidity, is evaluated at 84.2°F.
The highest temperature will be a couple of degrees higher than the average maximum of 80.4°F in October. The lowest temperature will be significantly lower than the average low of 56.5°F.
The highest temperature will be a couple of degrees higher than the average maximum of 80.4°F in October. The lowest temperature will be significantly lower than the average low of 56.5°F.
On Monday, in Riverdale, sunrise will be at 7:10 am and sunset at 6:18 pm (PDT).
In Riverdale, tomorrow, there will be 11h and 8min of daylight.
