Weather forecast for 10 daysChallenge, CA

Weather forecast for the weekend

Sunday Oct 18, 2026

  • 79°F
  • 54°F
Sunny
Sunny
  • Precip. probability: 0%
  • Precipitation: 0"
  • Wind: 9mphSSE 165°
  • Humidity: 23%
  • UV index: 4
  • Sunrise: 7:18 am PDT
  • Sunset: 6:21 pm PDT
  • ▼
On Sunday, in Challenge, sunny conditions are expected to continue.
Temperature fluctuations between a moderately hot 78.8°F and a fresh 53.6°F are anticipated.
The forecasted high for today is forecasted to be a few degrees higher than the typical October maximum of 73.4°F.
Sunrise will be at 7:18 am and sunset at 6:21 pm; the daylight will last for 11h and 3min.

10-day overview

Daily temperatures

Warmest day: today 79°C.
Minimum temperature: 57°C.

Chance of precipitation

Highest chance: Thursday 59%.

Long-term weather forecast

  • Sunday
  • Oct 18, 2026
  • 79°F
  • 54°F
Sunny
Sunny
  • Precip. probability: 0%
  • Precipitation: 0"
  • Wind: 9mphSSE 165°
  • Humidity: 23%
  • UV index: 4
  • Sunrise: 7:18 am PDT
  • Sunset: 6:21 pm PDT
  • ▼
  • Monday
  • Oct 19, 2026
  • 68°F
  • 48°F
Mostly Sunny
Mostly Sunny
  • Precip. probability: 0%
  • Precipitation: 0"
  • Wind: 8mphS 176°
  • Humidity: 35%
  • UV index: 4
  • Sunrise: 7:19 am PDT
  • Sunset: 6:20 pm PDT
  • ▼
  • Tuesday
  • Oct 20, 2026
  • 70°F
  • 52°F
Mostly Cloudy
Mostly Cloudy
  • Precip. probability: 4%
  • Precipitation: 0"
  • Wind: 5mphSW 215°
  • Humidity: 42%
  • UV index: 4
  • Sunrise: 7:20 am PDT
  • Sunset: 6:18 pm PDT
  • ▼
  • Wednesday
  • Oct 21, 2026
  • 64°F
  • 50°F
PM Showers
PM Showers
  • Precip. probability: 41%
  • Precipitation: 0.04"
  • Wind: 5mphS 182°
  • Humidity: 55%
  • UV index: 3
  • Sunrise: 7:21 am PDT
  • Sunset: 6:17 pm PDT
  • ▼
  • Thursday
  • Oct 22, 2026
  • 57°F
  • 48°F
Showers
Showers
  • Precip. probability: 59%
  • Precipitation: 0.2"
  • Wind: 6mphSSW 204°
  • Humidity: 77%
  • UV index: 3
  • Sunrise: 7:22 am PDT
  • Sunset: 6:16 pm PDT
  • ▼
  • Friday
  • Oct 23, 2026
  • 63°F
  • 45°F
Mostly Sunny
Mostly Sunny
  • Precip. probability: 16%
  • Precipitation: 0.31"
  • Wind: 6mphWNW 289°
  • Humidity: 64%
  • UV index: 4
  • Sunrise: 7:23 am PDT
  • Sunset: 6:14 pm PDT
  • ▼
  • Saturday
  • Oct 24, 2026
  • 64°F
  • 46°F
Mostly Sunny
Mostly Sunny
  • Precip. probability: 4%
  • Precipitation: 0"
  • Wind: 7mphS 183°
  • Humidity: 50%
  • UV index: 4
  • Sunrise: 7:24 am PDT
  • Sunset: 6:13 pm PDT
  • ▼
  • Sunday
  • Oct 25, 2026
  • 57°F
  • 45°F
Showers
Showers
  • Precip. probability: 45%
  • Precipitation: 0.04"
  • Wind: 7mphS 184°
  • Humidity: 60%
  • UV index: 4
  • Sunrise: 7:25 am PDT
  • Sunset: 6:12 pm PDT
  • ▼
  • Monday
  • Oct 26, 2026
  • 59°F
  • 45°F
Partly Cloudy
Partly Cloudy
  • Precip. probability: 17%
  • Precipitation: 0.24"
  • Wind: 5mphSSW 203°
  • Humidity: 51%
  • UV index: 4
  • Sunrise: 7:26 am PDT
  • Sunset: 6:10 pm PDT
  • ▼
  • Tuesday
  • Oct 27, 2026
  • 61°F
  • 43°F
Partly Cloudy
Partly Cloudy
  • Precip. probability: 18%
  • Precipitation: 0"
  • Wind: 6mphS 191°
  • Humidity: 48%
  • UV index: 3
  • Sunrise: 7:27 am PDT
  • Sunset: 6:09 pm PDT
  • ▼
Looking ahead, conditions suggest a period of bright, gloomy and damp weather is expected.
Rain is predicted for Wednesday through Friday, next Sunday and Monday.
Temperature variation will be noticeable throughout the forecast window. Maximum temperatures are forecasted between 57.2°F and 78.8°F, while the forecast minimum temperature falls between 42.8°F and 53.6°F.
The warmest day is today, with a maximum temperature of 78.8°F; with a maximum temperature of 57.2°F, Thursday and next Sunday will be the coldest days.
Updated: Oct 18, 2026 @ 09:14:56 UTC
Published by: Weather U.S. | About Us
Data Sources | weather.com | Weather
Weather Forecasting & Climate

Frequently asked questions

On Sunday, skies are expected to be clear and full of sunshine.

Today, the maximum temperature will be 78.8°F, while the minimum temperature will be 53.6°F.
The maximum temperature today will be slightly warmer than the average highest temperature in October. The lowest temperature today will be in line with the average low temperature.

On Sunday, in Challenge, sunrise will be at 7:18 am and sunset at 6:21 pm (PDT).

In Challenge, the length of the day today will be 11h and 3min.