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 285°
- Humidity: 28%
- UV index: 6
- Sunrise: 6:54 am PDT
- Sunset: 6:11 pm PDT
- details ▼
On Sunday, in Johnstown, sunny and dry conditions are also anticipated.
A substantial temperature range, peaking at a hot 89.6°F and bottoming out at an enjoyable 60.8°F, is predicted.
The day's peak of 89.6°F reflects September's seasonal pattern more than October's.
Sunrise will be at 6:54 am and sunset at 6:11 pm; tomorrow's daylight will last for 11h and 17min.
A substantial temperature range, peaking at a hot 89.6°F and bottoming out at an enjoyable 60.8°F, is predicted.
The day's peak of 89.6°F reflects September's seasonal pattern more than October's.
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 80%.
Long-term weather forecast
- Saturday
- Oct 17, 2026
- min.
- 63°F
Mostly Clear
- Precip. probability: 1%
- 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 285°
- 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 251°
- Humidity: 42%
- UV index: 6
- Sunrise: 6:55 am PDT
- Sunset: 6:09 pm PDT
- details ▼
- Tuesday
- Oct 20, 2026
- 82°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: 80%
- 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
- 79°F
- 57°F
Partly Cloudy
- Precip. probability: 3%
- Precipitation: 0"
- Wind: 10mphWSW 258°
- 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 247°
- Humidity: 61%
- UV index: 5
- Sunrise: 7:00 am PDT
- Sunset: 6:02 pm PDT
- details ▼
The weather will be unstable for the next ten days, and a mix of clear, gloomy, showery and stormy weather is predicted.
Rainfall is expected on Wednesday and Thursday.
Temperature variation will be noticeable in the upcoming days. Highs will range from 69.8°F to 89.6°F, while nighttime temperatures are expected to vary from 53.6°F to 62.6°F.
Expect the hottest day on Sunday, with temperatures peaking at 89.6°F; expect the coldest day on Thursday with a high of 69.8°F.
Rainfall is expected on Wednesday and Thursday.
Temperature variation will be noticeable in the upcoming days. Highs will range from 69.8°F to 89.6°F, while nighttime temperatures are expected to vary from 53.6°F to 62.6°F.
Expect the hottest day on Sunday, with temperatures peaking at 89.6°F; expect the coldest day on Thursday with a high of 69.8°F.
Updated: Oct 18, 2026 @ 00:28:04 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 expected with little to no cloud cover.
Tomorrow, the maximum temperature will be 89.6°F, while the minimum temperature will be 60.8°F.
The maximum temperature will be notably higher than the average highest temperature of 77.5°F in October. The lowest temperature will be in line with the average low of 57.7°F.
The maximum temperature will be notably higher than the average highest temperature of 77.5°F in October. The lowest temperature will be in line with the average low of 57.7°F.
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.
