Weather forecast for 10 daysFallbrook, CA

Weather forecast for the weekend

Saturday Oct 17, 2026

  • 84°F
  • 63°F
AM Clouds / PM Sun
AM Clouds / PM Sun
  • Precip. probability: 10%
  • Precipitation: 0"
  • Wind: 14mphENE 75°
  • Humidity: 22%
  • UV index: 4
  • Sunrise: 6:55 am PDT
  • Sunset: 6:13 pm PDT
  • ▼
On Saturday, in Fallbrook, cloudy skies are expected in the morning. However, sunshine will break through by the afternoon.
The temperature variation is anticipated to range from a maximum of a temperate 84.2°F to a minimum of a breezy 62.6°F.
Temperatures are trending hotter, with a peak resembling September's average maximum rather than October's seasonal high.
Sunrise was at 6:55 am and sunset will be at 6:13 pm; the daylight will last for 11h and 18min.

Sunday Oct 18, 2026

  • 86°F
  • 59°F
Sunny
Sunny
  • Precip. probability: 0%
  • Precipitation: 0"
  • Wind: 9mphW 281°
  • Humidity: 30%
  • UV index: 6
  • Sunrise: 6:56 am PDT
  • Sunset: 6:12 pm PDT
  • ▼
On Sunday, October 18, conditions will remain bright with clear skies.
Substantial temperature variations are expected, soaring to a maximum of a tropical 86°F and descending to a minimum of a moderate 59°F.
The temperature of 86°F aligns more with what is typical in September than what is normal in October.
Sunrise will be at 6:56 am and sunset at 6:12 pm; tomorrow's daylight will last for 11h and 16min.

10-day overview

Daily temperatures

Warmest day: tomorrow 86°C.
Coldest day: Thursday 68°C.

Chance of precipitation

Highest chance: Thursday 71%.

Long-term weather forecast

  • Saturday
  • Oct 17, 2026
  • 84°F
  • 63°F
AM Clouds / PM Sun
AM Clouds / PM Sun
  • Precip. probability: 10%
  • Precipitation: 0"
  • Wind: 14mphENE 75°
  • Humidity: 22%
  • UV index: 4
  • Sunrise: 6:55 am PDT
  • Sunset: 6:13 pm PDT
  • ▼
  • Sunday
  • Oct 18, 2026
  • 86°F
  • 59°F
Sunny
Sunny
  • Precip. probability: 0%
  • Precipitation: 0"
  • Wind: 9mphW 281°
  • Humidity: 30%
  • UV index: 6
  • Sunrise: 6:56 am PDT
  • Sunset: 6:12 pm PDT
  • ▼
  • Monday
  • Oct 19, 2026
  • 82°F
  • 59°F
Sunny
Sunny
  • Precip. probability: 2%
  • Precipitation: 0"
  • Wind: 9mphSSW 208°
  • Humidity: 47%
  • UV index: 6
  • Sunrise: 6:56 am PDT
  • Sunset: 6:10 pm PDT
  • ▼
  • Tuesday
  • Oct 20, 2026
  • 81°F
  • 57°F
Sunny
Sunny
  • Precip. probability: 5%
  • Precipitation: 0"
  • Wind: 9mphSSW 212°
  • Humidity: 58%
  • UV index: 6
  • Sunrise: 6:57 am PDT
  • Sunset: 6:09 pm PDT
  • ▼
  • Wednesday
  • Oct 21, 2026
  • 75°F
  • 59°F
Showers
Showers
  • Precip. probability: 55%
  • Precipitation: 0.59"
  • Wind: 11mphS 182°
  • Humidity: 65%
  • UV index: 5
  • Sunrise: 6:58 am PDT
  • Sunset: 6:08 pm PDT
  • ▼
  • Thursday
  • Oct 22, 2026
  • 68°F
  • 54°F
Thunderstorms
Thunderstorms
  • Precip. probability: 71%
  • Precipitation: 0.31"
  • Wind: 9mphS 185°
  • Humidity: 77%
  • UV index: 4
  • Sunrise: 6:59 am PDT
  • Sunset: 6:07 pm PDT
  • ▼
  • Friday
  • Oct 23, 2026
  • 72°F
  • 54°F
Mostly Sunny
Mostly Sunny
  • Precip. probability: 15%
  • Precipitation: 0"
  • Wind: 7mphSW 226°
  • Humidity: 69%
  • UV index: 6
  • Sunrise: 7:00 am PDT
  • Sunset: 6:06 pm PDT
  • ▼
  • Saturday
  • Oct 24, 2026
  • 77°F
  • 55°F
Mostly Sunny
Mostly Sunny
  • Precip. probability: 4%
  • Precipitation: 0"
  • Wind: 7mphW 266°
  • Humidity: 57%
  • UV index: 5
  • Sunrise: 7:01 am PDT
  • Sunset: 6:05 pm PDT
  • ▼
  • Sunday
  • Oct 25, 2026
  • 77°F
  • 55°F
Mostly Cloudy
Mostly Cloudy
  • Precip. probability: 5%
  • Precipitation: 0"
  • Wind: 8mphSSW 201°
  • Humidity: 54%
  • UV index: 4
  • Sunrise: 7:01 am PDT
  • Sunset: 6:04 pm PDT
  • ▼
  • Monday
  • Oct 26, 2026
  • 73°F
  • 54°F
Partly Cloudy
Partly Cloudy
  • Precip. probability: 24%
  • Precipitation: 0"
  • Wind: 9mphSW 214°
  • Humidity: 58%
  • UV index: 5
  • Sunrise: 7:02 am PDT
  • Sunset: 6:03 pm PDT
  • ▼
Weather fluctuations are likely over the next ten days, and a mix of sun-filled, overcast, showery and lightning-active weather is predicted.
Rainfall is expected on Wednesday and Thursday.
Temperature variation will be noticeable across the forecast period. Highs will range from 68°F to 86°F, while nighttime temperatures are expected to vary from 53.6°F to 62.6°F.
Sunday will be the hottest day, with a maximum temperature of 86°F; the lowest daytime temperature of the period will be reached on Thursday, peaking at 68°F.
Updated: Oct 17, 2026 @ 16:05:01 UTC
Published by: Weather U.S. | About Us
Data Sources | weather.com | Weather
Weather Forecasting & Climate

Frequently asked questions

Today, overcast conditions are expected early, but the afternoon will bring clear skies and sunshine.

Today, the highest temperature will be 84.2°F, while the lowest temperature will be 62.6°F.
The highest temperature today will be moderately higher than the average maximum temperature in October. The lowest temperature today will be also a few degrees higher than the average low temperature.

On Saturday, in Fallbrook, sunrise was at 6:55 am and sunset will be at 6:13 pm (PDT).

Today in Fallbrook, the daylight will last for 11h and 18min.

On Sunday, sunny skies and pleasant visibility are expected.

Tomorrow, the maximum temperature will be 86°F, while the minimum temperature will be 59°F.
The highest temperature will be notably higher than the average maximum of 76.3°F in October. The lowest temperature will be in line with the average low of 57.2°F.

On Sunday, in Fallbrook, sunrise will be at 6:56 am and sunset at 6:12 pm (PDT).

In Fallbrook, tomorrow, there will be 11h and 16min of daylight.