Weather forecast for 10 days
Fullerton, PA

Weather forecast for the weekend

Saturday, Jun 21.

Partly Cloudy
5:29 am

8:37 pm
EDT
Partly Cloudy
88°F / 70°F
  • Wind: 9mph WSW
  • Humidity: 61%
  • Precip. probability: 8%
  • Precipitation: 0"
  • UV index: 9
On Saturday, in Fullerton, mostly clear with scattered clouds is expected.
Rainfall is not anticipated. The temperature will vary between a maximum of a blazing 87.8°F and a minimum of a pleasant 69.8°F.
On Saturday, the forecast high deviates from June's norm and tracks July's average temperature of 83.8°F.
Sunrise will be at 5:29 am and sunset at 8:37 pm; the daylight will last for 15h and 8min.

Sunday, Jun 22.

Partly Cloudy
5:29 am

8:38 pm
EDT
Partly Cloudy
91°F / 73°F
  • Wind: 10mph WSW
  • Humidity: 63%
  • Precip. probability: 24%
  • Precipitation: 0"
  • UV index: 9
On Sunday, in Fullerton, a pleasant mix of sun and clouds will define the day.
Rainfall is not expected. Temperatures are forecasted to range from a maximum of a hot 91.4°F to a minimum of a moderately hot 73.4°F.
It will feel hotter, with a temperature more typical of July's average maximum of 83.8°F.
Sunrise will be at 5:29 am and sunset at 8:38 pm; the daylight will last for 15h and 8min.

Frequently asked questions

What is the weather forecast for Fullerton for Saturday?
On Saturday, in Fullerton, clouds will come and go, but expect bright periods in between.
Will it rain on Saturday?
No, it will not rain on Saturday.
What will be the highest temperature in Fullerton on Saturday?
On Saturday, the highest temperature will be 87.8°F, while the lowest temperature will be 69.8°F.
What is the weather forecast for Fullerton for Sunday?
On Sunday, changing cloud patterns will allow for periods of sunshine.
Will it rain on Sunday?
No, it will not rain on Sunday.
What will be the maximum temperature on Sunday?
On Sunday, the highest temperature will be 91.4°F, while the lowest temperature will be 73.4°F.
What is the weather forecast for Fullerton for the next ten days?
In Fullerton, a combination of clear, stormy and overcast weather is forecasted for the next ten days.
Will it rain in the next ten days?
Rainfall is predicted for Thursday, next Thursday and Friday in Fullerton. Thursday, with light precipitation of 0.39", will be the day with the most rainfall.
How hot will it be in the next ten days?
The maximum temperature will vary between 84.2°F and 96.8°F, as the minimum temperature will range between 62.6°F and 75.2°F.
Taking the humidity into consideration, the maximum feel-like temperature will range between 87.8°F and 118.4°F.
What will be the hottest and the coldest days?
The hottest days will be Monday and Tuesday, with a maximum of 96.8°F. The coldest days will be Friday and next Friday, with a maximum of 84.2°F.

Long-term weather forecast

WedJun 18.
  • min.
  • 68°F
Mostly Clear
Mostly Clear
  • Wind: 5mph SW
  • Humidity: 97%
  • UV index: 0
  • Precip. probability: 9%
  • Precipitation: 0"
  • 5:29 am 8:37 pm EDT
ThuJun 19.
  • 88°F
  • 63°F
PM Thunderstorms
PM Thunderstorms
  • Wind: 13mph SW
  • Humidity: 71%
  • UV index: 9
  • Precip. probability: 73%
  • Precipitation: 0.39"
  • 5:29 am 8:37 pm EDT
FriJun 20.
  • 84°F
  • 64°F
Mostly Sunny
Mostly Sunny
  • Wind: 12mph W
  • Humidity: 57%
  • UV index: 9
  • Precip. probability: 5%
  • Precipitation: 0"
  • 5:29 am 8:37 pm EDT
SatJun 21.
  • 88°F
  • 70°F
Partly Cloudy
Partly Cloudy
  • Wind: 9mph WSW
  • Humidity: 61%
  • UV index: 9
  • Precip. probability: 8%
  • Precipitation: 0"
  • 5:29 am 8:37 pm EDT
SunJun 22.
  • 91°F
  • 73°F
Partly Cloudy
Partly Cloudy
  • Wind: 10mph WSW
  • Humidity: 63%
  • UV index: 9
  • Precip. probability: 24%
  • Precipitation: 0"
  • 5:29 am 8:38 pm EDT
MonJun 23.
  • 97°F
  • 75°F
Mostly Sunny
Mostly Sunny
  • Wind: 7mph WNW
  • Humidity: 60%
  • UV index: 9
  • Precip. probability: 13%
  • Precipitation: 0"
  • 5:30 am 8:38 pm EDT
TueJun 24.
  • 97°F
  • 75°F
Sunny
Sunny
  • Wind: 8mph WNW
  • Humidity: 58%
  • UV index: 9
  • Precip. probability: 5%
  • Precipitation: 0"
  • 5:30 am 8:38 pm EDT
WedJun 25.
  • 93°F
  • 72°F
Mostly Sunny
Mostly Sunny
  • Wind: 7mph NW
  • Humidity: 59%
  • UV index: 9
  • Precip. probability: 21%
  • Precipitation: 0"
  • 5:30 am 8:38 pm EDT
ThuJun 26.
  • 90°F
  • 68°F
PM Thunderstorms
PM Thunderstorms
  • Wind: 8mph SW
  • Humidity: 67%
  • UV index: 8
  • Precip. probability: 52%
  • Precipitation: 0.24"
  • 5:31 am 8:38 pm EDT
FriJun 27.
  • 84°F
  • 68°F
PM Thunderstorms
PM Thunderstorms
  • Wind: 9mph SSE
  • Humidity: 71%
  • UV index: 8
  • Precip. probability: 35%
  • Precipitation: 0.12"
  • 5:31 am 8:38 pm EDT
Looking ahead, conditions suggest a period of dry and sunny, lightning-active and cloudy weather is anticipated.
Rainfall is forecasted for Thursday, next Thursday and Friday.
Expect a substantial fluctuation in daytime highs throughout the forecast window. Maximum temperatures are forecasted between 84.2°F and 96.8°F, while the fluctuation in night temperatures will be also significant, as nighttime lows are forecast to fall between 62.6°F and 75.2°F.
With a maximum temperature of 96.8°F, Monday and Tuesday will be the hottest days in Fullerton; with a maximum temperature of 84.2°F, Friday and next Friday will be the coldest days in Fullerton.
Combining with the humidity, the maximum feel-like temperature may increase vastly and range between a humid 87.8°F and a dangerously hot 118.4°F.
Updated: Jun 19, 2025 @ 01:08:55 UTC
Published by: Weather U.S. | About Us
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