Weather forecast for 10 daysMount Lemmon, AZ

Weather forecast for the weekend

Saturday Oct 17, 2026

  • 57°F
  • 37°F
Partly Cloudy
Partly Cloudy
  • Precip. probability: 5%
  • Precipitation: 0.08"
  • Wind: 15mphE 92°
  • Humidity: 26%
  • UV index: 5
  • Sunrise: 6:28 am MST
  • Sunset: 5:48 pm MST
  • ▼
Today, in Mount Lemmon, sun and clouds will share the sky, creating a partly cloudy day.
Minimal precipitation is expected. The maximum temperature will be a refreshing 57.2°F, while the minimum temperature will be a wintry 37.4°F.
The expected high will be a few degrees lower than October's standard temperature of 61.7°F.
Sunrise was at 6:28 am and sunset will be at 5:48 pm; the daylight will last for 11h and 20min.

Sunday Oct 18, 2026

  • 57°F
  • 41°F
Partly Cloudy
Partly Cloudy
  • Precip. probability: 24%
  • Precipitation: 0"
  • Wind: 12mphSSE 158°
  • Humidity: 47%
  • UV index: 6
  • Sunrise: 6:29 am MST
  • Sunset: 5:47 pm MST
  • ▼
Tomorrow, sunlight and clouds will take turns dominating the sky.
Temperature is expected to swing from a high of a refreshing 57.2°F to a low of an icy 41°F.
The highest temperature for tomorrow is forecasted to be moderately lower than the average October temperature of 61.7°F.
Sunrise will be at 6:29 am and sunset at 5:47 pm; tomorrow's daylight will last for 11h and 17min.

10-day overview

Daily temperatures

Warmest period: Tuesday - Wednesday 63°C.
Coldest day: Friday 50°C.

Chance of precipitation

Highest chance: Thursday 72%.

Long-term weather forecast

  • Saturday
  • Oct 17, 2026
  • 57°F
  • 37°F
Partly Cloudy
Partly Cloudy
  • Precip. probability: 5%
  • Precipitation: 0.08"
  • Wind: 15mphE 92°
  • Humidity: 26%
  • UV index: 5
  • Sunrise: 6:28 am MST
  • Sunset: 5:48 pm MST
  • ▼
  • Sunday
  • Oct 18, 2026
  • 57°F
  • 41°F
Partly Cloudy
Partly Cloudy
  • Precip. probability: 24%
  • Precipitation: 0"
  • Wind: 12mphSSE 158°
  • Humidity: 47%
  • UV index: 6
  • Sunrise: 6:29 am MST
  • Sunset: 5:47 pm MST
  • ▼
  • Monday
  • Oct 19, 2026
  • 59°F
  • 41°F
PM Thunderstorms
PM Thunderstorms
  • Precip. probability: 38%
  • Precipitation: 0.04"
  • Wind: 12mphS 188°
  • Humidity: 52%
  • UV index: 6
  • Sunrise: 6:30 am MST
  • Sunset: 5:45 pm MST
  • ▼
  • Tuesday
  • Oct 20, 2026
  • 63°F
  • 45°F
Partly Cloudy
Partly Cloudy
  • Precip. probability: 19%
  • Precipitation: 0"
  • Wind: 14mphS 186°
  • Humidity: 50%
  • UV index: 5
  • Sunrise: 6:30 am MST
  • Sunset: 5:44 pm MST
  • ▼
  • Wednesday
  • Oct 21, 2026
  • 63°F
  • 45°F
Isolated Thunderstorms
Isolated Thunderstorms
  • Precip. probability: 34%
  • Precipitation: 0.12"
  • Wind: 13mphS 178°
  • Humidity: 50%
  • UV index: 3
  • Sunrise: 6:31 am MST
  • Sunset: 5:43 pm MST
  • ▼
  • Thursday
  • Oct 22, 2026
  • 59°F
  • 36°F
Thunderstorms
Thunderstorms
  • Precip. probability: 72%
  • Precipitation: 0.59"
  • Wind: 14mphSSW 196°
  • Humidity: 55%
  • UV index: 5
  • Sunrise: 6:32 am MST
  • Sunset: 5:42 pm MST
  • ▼
  • Friday
  • Oct 23, 2026
  • 50°F
  • 30°F
Sunny
Sunny
  • Precip. probability: 22%
  • Precipitation: 0"
  • Wind: 12mphWSW 239°
  • Humidity: 56%
  • UV index: 6
  • Sunrise: 6:33 am MST
  • Sunset: 5:41 pm MST
  • ▼
  • Saturday
  • Oct 24, 2026
  • 55°F
  • 36°F
Sunny
Sunny
  • Precip. probability: 1%
  • Precipitation: 0"
  • Wind: 9mphSE 144°
  • Humidity: 38%
  • UV index: 6
  • Sunrise: 6:34 am MST
  • Sunset: 5:40 pm MST
  • ▼
  • Sunday
  • Oct 25, 2026
  • 55°F
  • 39°F
Mostly Sunny
Mostly Sunny
  • Precip. probability: 2%
  • Precipitation: 0"
  • Wind: 14mphSSE 149°
  • Humidity: 34%
  • UV index: 6
  • Sunrise: 6:34 am MST
  • Sunset: 5:39 pm MST
  • ▼
  • Monday
  • Oct 26, 2026
  • 52°F
  • 37°F
Mostly Sunny
Mostly Sunny
  • Precip. probability: 20%
  • Precipitation: 0"
  • Wind: 14mphS 173°
  • Humidity: 45%
  • UV index: 6
  • Sunrise: 6:35 am MST
  • Sunset: 5:38 pm MST
  • ▼
Looking ahead, conditions suggest a period of bright, overcast and thunderstorm-prone weather is anticipated.
Rainfall is predicted for Monday, Wednesday and Thursday.
Significant changes in temperature are expected in the upcoming period. The temperature is expected to swing from 50°F up to 62.6°F, while the fluctuation in night temperatures will be also significant, as the lowest temperatures will be recorded between 30.2°F and 44.6°F.
Tuesday and Wednesday, with the highest temperature of 62.6°F, will be the warmest days in Mount Lemmon; the coldest day will be Friday, with a maximum of 50°F.
Updated: Oct 17, 2026 @ 21:42:19 UTC
Published by: Weather U.S. | About Us
Data Sources | weather.com | Weather
Weather Forecasting & Climate

Frequently asked questions

On Saturday, in Mount Lemmon, intermittent cloud cover is expected, allowing for some sunshine.

Today, there is a low probability of minimal rainfall in Mount Lemmon.

Today, the highest temperature in Mount Lemmon, Arizona, will be 57.2°F, while the lowest temperature will be 37.4°F.
The highest temperature will be relatively lower than the average maximum of 61.7°F in October. The lowest temperature will be in line with the average low of 36.3°F.

On Saturday, in Mount Lemmon, sunrise was at 6:28 am and sunset will be at 5:48 pm (MST).

Today, the daylight will last for 11h and 20min.

On Sunday, occasional cloudiness will be present, but there will still be plenty of sun.

Tomorrow, the maximum temperature will be 57.2°F, while the minimum temperature will be 41°F.
The maximum temperature tomorrow will be moderately lower than the average highest temperature in October. The lowest temperature will be also relatively higher than the average low of 36.3°F.

On Sunday, in Mount Lemmon, sunrise will be at 6:29 am and sunset at 5:47 pm (MST).

In Mount Lemmon, the length of the day tomorrow will be 11h and 17min.