Weather forecast for 10 daysJohnstown, CA
Weather forecast for the weekend
Sunday Oct 18, 2026
- 90°F
- 61°F
Sunny
- Precip. probability: 0%
- Precipitation: 0"
- Wind: 12mphWNW 288°
- Humidity: 28%
- UV index: 6
- Sunrise: 6:54 am PDT
- Sunset: 6:11 pm PDT
- details ▼
Tomorrow, on Sunday, sunshine will likely continue with scattered clouds at most.
The day's temperature range will span from a high of a blazing 89.6°F to a minimum of an enjoyable 60.8°F.
Tomorrow, the expected high of 89.6°F is expected to reflect September's average high of 83.3°F.
Sunrise will be at 6:54 am and sunset at 6:11 pm; tomorrow's daylight will last for 11h and 17min.
The day's temperature range will span from a high of a blazing 89.6°F to a minimum of an enjoyable 60.8°F.
Tomorrow, the expected high of 89.6°F is expected to reflect September's average high of 83.3°F.
Sunrise will be at 6:54 am and sunset at 6:11 pm; tomorrow's daylight will last for 11h and 17min.
10-day overview
Daily temperatures
Warmest day: tomorrow 90°C.
Coldest day: Thursday 70°C.
Coldest day: Thursday 70°C.
Chance of precipitation
Highest chance: Thursday 79%.
Long-term weather forecast
- Saturday
- Oct 17, 2026
- min.
- 63°F
Mostly Clear
- Precip. probability: 0%
- Precipitation: 0"
- Wind: 12mphE 79°
- Humidity: 33%
- UV index: 0
- Sunrise: 6:53 am PDT
- Sunset: 6:12 pm PDT
- details ▼
- Sunday
- Oct 18, 2026
- 90°F
- 61°F
Sunny
- Precip. probability: 0%
- Precipitation: 0"
- Wind: 12mphWNW 288°
- Humidity: 28%
- UV index: 6
- Sunrise: 6:54 am PDT
- Sunset: 6:11 pm PDT
- details ▼
- Monday
- Oct 19, 2026
- 86°F
- 61°F
Sunny
- Precip. probability: 0%
- Precipitation: 0"
- Wind: 11mphWSW 252°
- Humidity: 43%
- UV index: 6
- Sunrise: 6:55 am PDT
- Sunset: 6:09 pm PDT
- details ▼
- Tuesday
- Oct 20, 2026
- 84°F
- 59°F
Sunny
- Precip. probability: 5%
- Precipitation: 0"
- Wind: 11mphWSW 240°
- Humidity: 56%
- UV index: 6
- Sunrise: 6:55 am PDT
- Sunset: 6:08 pm PDT
- details ▼
- Wednesday
- Oct 21, 2026
- 82°F
- 61°F
PM Showers
- Precip. probability: 36%
- Precipitation: 0.28"
- Wind: 12mphSW 227°
- Humidity: 58%
- UV index: 6
- Sunrise: 6:56 am PDT
- Sunset: 6:07 pm PDT
- details ▼
- Thursday
- Oct 22, 2026
- 70°F
- 55°F
Thundershowers
- Precip. probability: 79%
- Precipitation: 0.31"
- Wind: 11mphWSW 239°
- Humidity: 72%
- UV index: 4
- Sunrise: 6:57 am PDT
- Sunset: 6:06 pm PDT
- details ▼
- Friday
- Oct 23, 2026
- 73°F
- 54°F
Partly Cloudy
- Precip. probability: 22%
- Precipitation: 0"
- Wind: 10mphW 266°
- Humidity: 66%
- UV index: 6
- Sunrise: 6:58 am PDT
- Sunset: 6:05 pm PDT
- details ▼
- Saturday
- Oct 24, 2026
- 81°F
- 55°F
Mostly Sunny
- Precip. probability: 2%
- Precipitation: 0"
- Wind: 10mphW 278°
- Humidity: 53%
- UV index: 6
- Sunrise: 6:59 am PDT
- Sunset: 6:04 pm PDT
- details ▼
- Sunday
- Oct 25, 2026
- 77°F
- 57°F
Partly Cloudy
- Precip. probability: 3%
- Precipitation: 0"
- Wind: 10mphW 259°
- Humidity: 54%
- UV index: 5
- Sunrise: 6:59 am PDT
- Sunset: 6:03 pm PDT
- details ▼
- Monday
- Oct 26, 2026
- 75°F
- 55°F
Partly Cloudy
- Precip. probability: 11%
- Precipitation: 0"
- Wind: 11mphWSW 248°
- Humidity: 61%
- UV index: 5
- Sunrise: 7:00 am PDT
- Sunset: 6:02 pm PDT
- details ▼
And a mix of sun-filled, gloomy, rain-soaked and thunderstorm-prone weather is expected.
Rainfall is anticipated on Wednesday and Thursday.
Expect a substantial fluctuation in daytime highs in the upcoming period. The maximum temperature will vary between 69.8°F and 89.6°F, while the minimum temperature is forecast to range between 53.6°F and 62.6°F.
Expect the hottest day on Sunday, with temperatures peaking at 89.6°F; Thursday will be the coldest day, with the highest temperature of 69.8°F.
Rainfall is anticipated on Wednesday and Thursday.
Expect a substantial fluctuation in daytime highs in the upcoming period. The maximum temperature will vary between 69.8°F and 89.6°F, while the minimum temperature is forecast to range between 53.6°F and 62.6°F.
Expect the hottest day on Sunday, with temperatures peaking at 89.6°F; Thursday will be the coldest day, with the highest temperature of 69.8°F.
Updated: Oct 17, 2026 @ 23:12:57 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
Tomorrow, sunshine is forecasted under mostly clear skies.
Tomorrow, the maximum temperature will be 89.6°F, while the minimum temperature will be 60.8°F.
The highest temperature will be notably higher than the average maximum of 77.5°F in October. Tomorrow, the lowest temperature will be in line with the average low temperature.
The highest temperature will be notably higher than the average maximum of 77.5°F in October. Tomorrow, the lowest temperature 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).
In Johnstown, the length of the day tomorrow will be 11h and 17min.
