Weather forecast for 10 daysCatalina, AZ

Weather forecast for the weekend

Sunday Oct 18, 2026

  • 81°F
  • 63°F
Partly Cloudy
Partly Cloudy
  • Precip. probability: 8%
  • Precipitation: 0"
  • Wind: 6mphSE 141°
  • Humidity: 44%
  • UV index: 6
  • Sunrise: 6:30 am MST
  • Sunset: 5:47 pm MST
  • ▼
Today, in Catalina, scattered clouds may briefly filter the sunlight, but it will remain bright overall.
The anticipated temperature range extends from a high of a temperate 80.6°F to a low of an enjoyable 62.6°F.
The maximum heat index, which combines air temperature and relative humidity, is calculated to be 80.6°F.
October's usual high of 79.3°F is anticipated to be matched by the day’s maximum temperature.
Sunrise will be at 6:30 am and sunset at 5:47 pm; the daylight will last for 11h and 17min.

10-day overview

Daily temperatures

Warmest period: Tuesday - Wednesday 84°C.
Minimum temperature: 73°C.

Chance of precipitation

Highest chance: Thursday 68%.

Long-term weather forecast

  • Sunday
  • Oct 18, 2026
  • 81°F
  • 63°F
Partly Cloudy
Partly Cloudy
  • Precip. probability: 8%
  • Precipitation: 0"
  • Wind: 6mphSE 141°
  • Humidity: 44%
  • UV index: 6
  • Sunrise: 6:30 am MST
  • Sunset: 5:47 pm MST
  • ▼
  • Monday
  • Oct 19, 2026
  • 81°F
  • 64°F
Partly Cloudy
Partly Cloudy
  • Precip. probability: 17%
  • Precipitation: 0"
  • Wind: 7mphSSW 203°
  • Humidity: 49%
  • UV index: 6
  • Sunrise: 6:30 am MST
  • Sunset: 5:46 pm MST
  • ▼
  • Tuesday
  • Oct 20, 2026
  • 84°F
  • 68°F
Partly Cloudy
Partly Cloudy
  • Precip. probability: 24%
  • Precipitation: 0"
  • Wind: 9mphS 183°
  • Humidity: 46%
  • UV index: 5
  • Sunrise: 6:31 am MST
  • Sunset: 5:45 pm MST
  • ▼
  • Wednesday
  • Oct 21, 2026
  • 84°F
  • 68°F
PM Thunderstorms
PM Thunderstorms
  • Precip. probability: 45%
  • Precipitation: 0.16"
  • Wind: 9mphS 179°
  • Humidity: 49%
  • UV index: 4
  • Sunrise: 6:32 am MST
  • Sunset: 5:44 pm MST
  • ▼
  • Thursday
  • Oct 22, 2026
  • 79°F
  • 57°F
Thunderstorms
Thunderstorms
  • Precip. probability: 68%
  • Precipitation: 0.24"
  • Wind: 10mphSSW 209°
  • Humidity: 58%
  • UV index: 5
  • Sunrise: 6:33 am MST
  • Sunset: 5:43 pm MST
  • ▼
  • Friday
  • Oct 23, 2026
  • 73°F
  • 55°F
Sunny
Sunny
  • Precip. probability: 12%
  • Precipitation: 0"
  • Wind: 8mphWSW 253°
  • Humidity: 55%
  • UV index: 6
  • Sunrise: 6:33 am MST
  • Sunset: 5:42 pm MST
  • ▼
  • Saturday
  • Oct 24, 2026
  • 75°F
  • 57°F
Sunny
Sunny
  • Precip. probability: 13%
  • Precipitation: 0"
  • Wind: 6mphWSW 244°
  • Humidity: 43%
  • UV index: 6
  • Sunrise: 6:34 am MST
  • Sunset: 5:40 pm MST
  • ▼
  • Sunday
  • Oct 25, 2026
  • 79°F
  • 61°F
Mostly Sunny
Mostly Sunny
  • Precip. probability: 15%
  • Precipitation: 0"
  • Wind: 9mphSE 137°
  • Humidity: 40%
  • UV index: 6
  • Sunrise: 6:35 am MST
  • Sunset: 5:39 pm MST
  • ▼
  • Monday
  • Oct 26, 2026
  • 75°F
  • 59°F
Mostly Sunny
Mostly Sunny
  • Precip. probability: 24%
  • Precipitation: 0"
  • Wind: 9mphS 191°
  • Humidity: 47%
  • UV index: 6
  • Sunrise: 6:36 am MST
  • Sunset: 5:38 pm MST
  • ▼
  • Tuesday
  • Oct 27, 2026
  • 73°F
  • 57°F
Partly Cloudy
Partly Cloudy
  • Precip. probability: 11%
  • Precipitation: 0"
  • Wind: 9mphSSW 192°
  • Humidity: 49%
  • UV index: 6
  • Sunrise: 6:37 am MST
  • Sunset: 5:37 pm MST
  • ▼
Over the next ten days, a mix of overcast, sun-filled and turbulent weather is predicted.
Rainfall is predicted for Wednesday and Thursday.
In the upcoming period, the highest temperature will range between 73.4°F and 84.2°F, while the variation in nighttime lows will be notably wide, as the overnight lows will vary from 55.4°F to 68°F.
With a maximum temperature of 84.2°F, Tuesday and Wednesday will be the hottest days; with a maximum temperature of 73.4°F, Friday and next Tuesday will be the coldest days.
Updated: Oct 18, 2026 @ 10:44:21 UTC
Published by: Weather U.S. | About Us
Data Sources | weather.com | Weather
Weather Forecasting & Climate

Frequently asked questions

Today, in Catalina, sun and clouds will share the sky, creating a partly cloudy day.

Today, the maximum temperature will be 80.6°F, while the minimum temperature will be 62.6°F. The maximum heat index, which combines relative humidity and air temperature, is assessed at 80.6°F.
The maximum temperature today will be in line with the average highest temperature in October. The lowest temperature will be also in line with the average low of 59.5°F.

On Sunday, in Catalina, sunrise will be at 6:30 am and sunset at 5:47 pm (MST).

In Catalina, the length of the day today will be 11h and 17min.