Weather forecast for 10 days
Johnstown, CA

Weather forecast for the weekend

Saturday, May 3.

Cloudy
5:56 am

7:32 pm
PDT
Cloudy
66°F / 54°F
  • Wind: 11mph SW
  • Humidity: 75%
  • Precip. probability: 10%
  • Precipitation: 0.12"
  • UV index: 6
Today, on Saturday, May 3, gray and overcast skies will be present.
Minimal precipitation is forecasted. Temperature is predicted to swing from a high of a breezy 66.2°F to a low of a cool 53.6°F.
The colder conditions bring a maximum of 66.2°F, more representative of April than May.
Sunrise will be at 5:56 am and sunset at 7:32 pm; the daylight will last for 13h and 36min.

Sunday, May 4.

Showers
5:55 am

7:33 pm
PDT
Showers
57°F / 52°F
  • Wind: 12mph SSW
  • Humidity: 76%
  • Precip. probability: 45%
  • Precipitation: 0.12"
  • UV index: 4
Tomorrow, in Johnstown, showers are expected, with occasional breaks in the rain throughout the day.
Minimal precipitation is forecasted. The highest daytime temperature will reach a moderate 57.2°F, creating a slight contrast with the anticipated nighttime low of a fresh 51.8°F.
Meteorological data shows 57.2°F is more characteristic of April's climate profile than May's.
Sunrise will be at 5:55 am and sunset at 7:33 pm; tomorrow's daylight will last for 13h and 38min.

Frequently asked questions

What is the weather forecast for Johnstown for tomorrow?
Tomorrow, showers will pass through, with occasional dry intervals.
Will it rain tomorrow?
Tomorrow, there is a low probability of minimal rainfall in Johnstown.
What will be the maximum temperature tomorrow?
Tomorrow, the highest temperature in Johnstown will be 57.2°F, while the lowest temperature will be 51.8°F.
The highest temperature will be significantly lower than the average maximum of 72.5°F in May. Tomorrow, the lowest temperature will be in line with the average low temperature.
When is the sunrise / sunset tomorrow?
On Sunday, in Johnstown, sunrise will be at 5:55 am and sunset at 7:33 pm (PDT).
How long will the day be tomorrow?
In Johnstown, the length of the day tomorrow will be 13h and 38min.
What is the weather forecast for Johnstown for the next ten days?
In Johnstown, a combination of mostly clear, cloudy and rain-soaked weather is predicted for the next ten days.
Will it rain in the next ten days?
Rain is anticipated only on Sunday. With a probability of 45%, minimal precipitation of 0.12" is expected.
How hot will it be in the next ten days?
The maximum temperature will vary between 57.2°F and 87.8°F, while the minimum temperature will vary between 51.8°F and 60.8°F.
What will be the hottest and the coldest days?
The hottest days will be Friday and next Saturday, with a maximum of 87.8°F. Tomorrow will be the coldest day, with a maximum temperature of 57.2°F.

Long-term weather forecast

SatMay 3.
  • 66°F
  • 54°F
Cloudy
Cloudy
  • Wind: 11mph SW
  • Humidity: 75%
  • UV index: 6
  • Precip. probability: 10%
  • Precipitation: 0.12"
  • 5:56 am 7:32 pm PDT
SunMay 4.
  • 57°F
  • 52°F
Showers
Showers
  • Wind: 12mph SSW
  • Humidity: 76%
  • UV index: 4
  • Precip. probability: 45%
  • Precipitation: 0.12"
  • 5:55 am 7:33 pm PDT
MonMay 5.
  • 64°F
  • 52°F
Cloudy
Cloudy
  • Wind: 9mph SW
  • Humidity: 71%
  • UV index: 5
  • Precip. probability: 20%
  • Precipitation: 0"
  • 5:54 am 7:33 pm PDT
TueMay 6.
  • 72°F
  • 54°F
Mostly Sunny
Mostly Sunny
  • Wind: 11mph W
  • Humidity: 63%
  • UV index: 10
  • Precip. probability: 5%
  • Precipitation: 0"
  • 5:53 am 7:34 pm PDT
WedMay 7.
  • 77°F
  • 55°F
Sunny
Sunny
  • Wind: 11mph WNW
  • Humidity: 57%
  • UV index: 10
  • Precip. probability: 5%
  • Precipitation: 0"
  • 5:52 am 7:35 pm PDT
ThuMay 8.
  • 86°F
  • 59°F
Mostly Sunny
Mostly Sunny
  • Wind: 11mph WNW
  • Humidity: 45%
  • UV index: 10
  • Precip. probability: 3%
  • Precipitation: 0"
  • 5:52 am 7:36 pm PDT
FriMay 9.
  • 88°F
  • 61°F
Sunny
Sunny
  • Wind: 11mph W
  • Humidity: 40%
  • UV index: 10
  • Precip. probability: 0%
  • Precipitation: 0"
  • 5:51 am 7:36 pm PDT
SatMay 10.
  • 88°F
  • 61°F
Sunny
Sunny
  • Wind: 11mph W
  • Humidity: 39%
  • UV index: 10
  • Precip. probability: 0%
  • Precipitation: 0"
  • 5:50 am 7:37 pm PDT
SunMay 11.
  • 82°F
  • 57°F
Partly Cloudy
Partly Cloudy
  • Wind: 11mph WSW
  • Humidity: 42%
  • UV index: 9
  • Precip. probability: 0%
  • Precipitation: 0"
  • 5:49 am 7:38 pm PDT
MonMay 12.
  • 79°F
  • 57°F
Partly Cloudy
Partly Cloudy
  • Wind: 12mph WSW
  • Humidity: 48%
  • UV index: 9
  • Precip. probability: 1%
  • Precipitation: 0"
  • 5:48 am 7:39 pm PDT
Models point to a combination of clear, dull and rain-filled weather is anticipated.
With a 45% probability, rainfall is predicted only for Sunday. Expected precipitation will be minimal at 0.12".
Expect a substantial fluctuation in daytime highs in the coming days. The temperature is expected to swing from 57.2°F up to 87.8°F, while nighttime temperatures are expected to vary from 51.8°F to 60.8°F.
With a maximum temperature of 87.8°F, Friday and next Saturday will be the hottest days in Johnstown; the coldest day will be Sunday, with a maximum of 57.2°F.
Updated: May 3, 2025 @ 12:51:45 UTC
Published by: Weather U.S. | About Us
Data Sources | |
Weather Forecasting & Climate
Share