Weather forecast for tomorrow
Wednesday, Jun 18.
5:39 am
8:06 pm
PDT
8:06 pm
PDT
Sunny
88°F / 63°F
- Wind: 9mph SSW
- Humidity: 43%
- Precip. probability: 4%
- Precipitation: 0"
- UV index: 10
Tomorrow, on Wednesday, June 18, conditions will remain bright with clear skies.
The highest predicted temperature is a humid 87.8°F, while the lowest temperature will be an enjoyable 62.6°F.
The maximum heat index, which modifies the air temperature to account for humidity, is assessed at a tropical 87.8°F. Note that heat index values are valued for light wind and location in the shade.
The temperature will be higher and more consistent with July's average high of 81.5°F than with June's usual.
Sunrise will be at 5:39 am and sunset at 8:06 pm; tomorrow's daylight will last for 14h and 27min.
The highest predicted temperature is a humid 87.8°F, while the lowest temperature will be an enjoyable 62.6°F.
The maximum heat index, which modifies the air temperature to account for humidity, is assessed at a tropical 87.8°F. Note that heat index values are valued for light wind and location in the shade.
The temperature will be higher and more consistent with July's average high of 81.5°F than with June's usual.
Sunrise will be at 5:39 am and sunset at 8:06 pm; tomorrow's daylight will last for 14h and 27min.
Frequently asked questions
What is the weather forecast for Fullerton for tomorrow?
On Wednesday, sunny and dry conditions are anticipated.
What will be the highest temperature tomorrow in Fullerton?
Tomorrow, the highest temperature will be 87.8°F, while the lowest temperature will be 62.6°F. The maximum heat index, which indicates how humid air affects the felt temperature, is assessed at 87.8°F.
The highest temperature will be uncommonly higher than the average maximum of 76.6°F in June. The lowest temperature will be moderately higher than the average low of 58.8°F.
The highest temperature will be uncommonly higher than the average maximum of 76.6°F in June. The lowest temperature will be moderately higher than the average low of 58.8°F.
When are sunrise and sunset tomorrow?
On Wednesday, in Fullerton, sunrise will be at 5:39 am and sunset at 8:06 pm (PDT).
How many hours of daylight will Fullerton have tomorrow?
Tomorrow, the daylight will last for 14h and 27min.
Hourly weather forecast
12 am
- 68°F
- Feels like:
68°F
Clear
- Wind: 3mph S
- Pressure: 29.8"Hg
- Humidity: 52%
- Precip. probability: 2%
- Precipitation: 0"
- Visibility: 10mi
2 am
- 66°F
- Feels like:
66°F
Mostly Clear
- Wind: 2mph S
- Pressure: 29.8"Hg
- Humidity: 62%
- Precip. probability: 2%
- Precipitation: 0"
- Visibility: 10mi
4 am
- 64°F
- Feels like:
64°F
Partly Cloudy
- Wind: 2mph SSE
- Pressure: 29.77"Hg
- Humidity: 58%
- Precip. probability: 3%
- Precipitation: 0"
- Visibility: 10mi
Sunrise: 5:39 am
6 am
- 64°F
- Feels like:
64°F
Partly Cloudy
- Wind: 2mph SSE
- Pressure: 29.77"Hg
- Humidity: 63%
- Precip. probability: 6%
- Precipitation: 0"
- Visibility: 7mi
8 am
- 68°F
- Feels like:
68°F
Mostly Sunny
- Wind: 2mph SSW
- Pressure: 29.8"Hg
- Humidity: 60%
- Precip. probability: 3%
- Precipitation: 0"
- Visibility: 10mi
10 am
- 75°F
- Feels like:
75°F
Sunny
- Wind: 4mph SSW
- Pressure: 29.8"Hg
- Humidity: 49%
- Precip. probability: 0%
- Precipitation: 0"
- Visibility: 10mi
12 pm
- 81°F
- Feels like:
82°F
Sunny
- Wind: 5mph SW
- Pressure: 29.77"Hg
- Humidity: 40%
- Precip. probability: 0%
- Precipitation: 0"
- Visibility: 10mi
2 pm
- 86°F
- Feels like:
86°F
Sunny
- Wind: 8mph SW
- Pressure: 29.74"Hg
- Humidity: 34%
- Precip. probability: 0%
- Precipitation: 0"
- Visibility: 10mi
4 pm
- 84°F
- Feels like:
84°F
Sunny
- Wind: 9mph SSW
- Pressure: 29.74"Hg
- Humidity: 34%
- Precip. probability: 0%
- Precipitation: 0"
- Visibility: 10mi
6 pm
- 81°F
- Feels like:
81°F
Sunny
- Wind: 9mph SSW
- Pressure: 29.74"Hg
- Humidity: 39%
- Precip. probability: 0%
- Precipitation: 0"
- Visibility: 10mi
8 pm
- 72°F
- Feels like:
72°F
Sunny
- Wind: 7mph SSW
- Pressure: 29.77"Hg
- Humidity: 48%
- Precip. probability: 1%
- Precipitation: 0"
- Visibility: 10mi
Sunset: 8:06 pm
10 pm
- 68°F
- Feels like:
68°F
Mostly Clear
- Wind: 5mph SSW
- Pressure: 29.8"Hg
- Humidity: 56%
- Precip. probability: 4%
- Precipitation: 0"
- Visibility: 10mi
Tomorrow, a combination of mostly clear and cloudy weather is anticipated.
The temperature will be between a minimum of 64.4°F and a maximum of 86°F. The hottest part of the day will be at 2 pm and 3 pm.
The temperature will be more comparable to what’s typical for July than the usual maximum in June. The minimum temperature will be moderately higher than June's average low of 58.8°F.
The temperature will be between a minimum of 64.4°F and a maximum of 86°F. The hottest part of the day will be at 2 pm and 3 pm.
The temperature will be more comparable to what’s typical for July than the usual maximum in June. The minimum temperature will be moderately higher than June's average low of 58.8°F.
Updated: Jun 18, 2025 @ 04:22:24 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