Weather forecast for tomorrowJohnstown, CA

Weather forecast for tomorrow

Sunday Oct 18, 2026

  • 88°F
  • 61°F
Sunny
Sunny
  • Precip. probability: 0%
  • Precipitation: 0"
  • Wind: 12mphW 279°
  • Humidity: 29%
  • UV index: 6
  • Sunrise: 6:54 am PDT
  • Sunset: 6:11 pm PDT
  • ▼
On Sunday, October 18, sunny and dry conditions are also anticipated.
Temperature readings will considerable fluctuate from a daytime peak of a blazing 87.8°F to a nighttime low of an enjoyable 60.8°F.
Tomorrow, meteorological data suggests the high will feel more like September, based on a forecast of 87.8°F.
Sunrise will be at 6:54 am and sunset at 6:11 pm; tomorrow's daylight will last for 11h and 17min.

Hourly overview

Hourly temperatures

Warmest hour: 3 pm 86°C.
Coldest hour: 6 am 63°C.

Chance of precipitation

Highest chance: 9 pm 1%.

Hourly weather forecast

  • 12 am
  • 68°F
  • Feels like:
    68°F
Clear
Clear
  • Precip. probability: 0%
  • Precipitation: 0"
  • Wind: 6mphE 79°
  • Humidity: 34%
  • Pressure: 29.97"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
  • 2 am
  • 66°F
  • Feels like:
    66°F
Clear
Clear
  • Precip. probability: 0%
  • Precipitation: 0"
  • Wind: 5mphE 85°
  • Humidity: 39%
  • Pressure: 29.97"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
  • 4 am
  • 63°F
  • Feels like:
    63°F
Clear
Clear
  • Precip. probability: 0%
  • Precipitation: 0"
  • Wind: 4mphE 84°
  • Humidity: 44%
  • Pressure: 29.94"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
  • 6 am
  • 63°F
  • Feels like:
    63°F
Clear
Clear
  • Precip. probability: 0%
  • Precipitation: 0"
  • Wind: 4mphE 86°
  • Humidity: 47%
  • Pressure: 29.94"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
Sunrise: 6:54 am
  • 8 am
  • 66°F
  • Feels like:
    66°F
Sunny
Sunny
  • Precip. probability: 0%
  • Precipitation: 0"
  • Wind: 3mphE 80°
  • Humidity: 43%
  • Pressure: 29.97"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
  • 10 am
  • 77°F
  • Feels like:
    77°F
Sunny
Sunny
  • Precip. probability: 0%
  • Precipitation: 0"
  • Wind: 1mphW 277°
  • Humidity: 28%
  • Pressure: 29.97"Hg
  • Visibility: 10mi
  • UV index: 3
  • ▼
  • 12 pm
  • 84°F
  • Feels like:
    84°F
Sunny
Sunny
  • Precip. probability: 0%
  • Precipitation: 0"
  • Wind: 4mphWSW 253°
  • Humidity: 21%
  • Pressure: 29.94"Hg
  • Visibility: 10mi
  • UV index: 6
  • ▼
  • 2 pm
  • 86°F
  • Feels like:
    86°F
Sunny
Sunny
  • Precip. probability: 0%
  • Precipitation: 0"
  • Wind: 9mphW 274°
  • Humidity: 20%
  • Pressure: 29.88"Hg
  • Visibility: 10mi
  • UV index: 5
  • ▼
  • 4 pm
  • 84°F
  • Feels like:
    84°F
Sunny
Sunny
  • Precip. probability: 0%
  • Precipitation: 0"
  • Wind: 12mphWNW 283°
  • Humidity: 24%
  • Pressure: 29.88"Hg
  • Visibility: 10mi
  • UV index: 2
  • ▼
  • 6 pm
  • 79°F
  • Feels like:
    79°F
Sunny
Sunny
  • Precip. probability: 0%
  • Precipitation: 0"
  • Wind: 9mphW 280°
  • Humidity: 35%
  • Pressure: 29.88"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
Sunset: 6:11 pm
  • 8 pm
  • 72°F
  • Feels like:
    72°F
Clear
Clear
  • Precip. probability: 0%
  • Precipitation: 0"
  • Wind: 2mphW 274°
  • Humidity: 49%
  • Pressure: 29.91"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
  • 10 pm
  • 68°F
  • Feels like:
    68°F
Clear
Clear
  • Precip. probability: 1%
  • Precipitation: 0"
  • Wind: 1mphSSE 166°
  • Humidity: 55%
  • Pressure: 29.94"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
Tomorrow, sunny conditions are likely to prevail.
The temperature will be between a minimum of 62.6°F and a maximum of 86°F. The hottest part of the day will be from 1 pm to 3 pm.
The temperature tomorrow will feel more resembling September's average high of 83.3°F than the usual for October. The minimum temperature will be close to October's average low of 57.7°F.
Updated: Oct 18, 2026 @ 03:02:09 UTC
Published by: Weather U.S. | About Us
Data Sources | weather.com | Weather
Weather Forecasting & Climate

Frequently asked questions

Tomorrow, bright and sunny weather is expected.

Tomorrow, the highest temperature will be 87.8°F, while the lowest temperature will be 60.8°F.
The maximum temperature will be noticeably higher than the average highest temperature of 77.5°F in October. The lowest temperature tomorrow will be in line with the average low temperature.

On Sunday, in Johnstown, sunrise will be at 6:54 am and sunset at 6:11 pm (PDT).

Tomorrow, the daylight will last for 11h and 17min.