Weather forecast for 10 daysSaint Johns, AZ

Weather forecast for the weekend

Sunday Oct 18, 2026

  • 72°F
  • 43°F
Partly Cloudy
Partly Cloudy
  • Precip. probability: 15%
  • Precipitation: 0"
  • Wind: 9mphNW 321°
  • Humidity: 53%
  • UV index: 5
  • Sunrise: 6:25 am MST
  • Sunset: 5:39 pm MST
  • ▼
Today, in Saint Johns, expect a mix of sun and clouds throughout the day.
Significant variations in temperature are anticipated, peaking at a delightful 71.6°F and dropping to a low of a chilly 42.8°F.
This predicted maximum temperature is expected to mirror October's typical high of 68.2°F.
Sunrise will be at 6:25 am and sunset at 5:39 pm; the daylight will last for 11h and 14min.

10-day overview

Daily temperatures

Warmest day: Tuesday 75°C.
Minimum temperature: 64°C.

Chance of precipitation

Highest chance: Thursday 66%.

Long-term weather forecast

  • Sunday
  • Oct 18, 2026
  • 72°F
  • 43°F
Partly Cloudy
Partly Cloudy
  • Precip. probability: 15%
  • Precipitation: 0"
  • Wind: 9mphNW 321°
  • Humidity: 53%
  • UV index: 5
  • Sunrise: 6:25 am MST
  • Sunset: 5:39 pm MST
  • ▼
  • Monday
  • Oct 19, 2026
  • 68°F
  • 48°F
Partly Cloudy
Partly Cloudy
  • Precip. probability: 24%
  • Precipitation: 0"
  • Wind: 9mphSSW 208°
  • Humidity: 55%
  • UV index: 5
  • Sunrise: 6:26 am MST
  • Sunset: 5:38 pm MST
  • ▼
  • Tuesday
  • Oct 20, 2026
  • 75°F
  • 52°F
Partly Cloudy
Partly Cloudy
  • Precip. probability: 15%
  • Precipitation: 0.08"
  • Wind: 14mphSSW 203°
  • Humidity: 50%
  • UV index: 6
  • Sunrise: 6:27 am MST
  • Sunset: 5:36 pm MST
  • ▼
  • Wednesday
  • Oct 21, 2026
  • 73°F
  • 57°F
Scattered Thunderstorms
Scattered Thunderstorms
  • Precip. probability: 53%
  • Precipitation: 0.12"
  • Wind: 12mphS 187°
  • Humidity: 54%
  • UV index: 4
  • Sunrise: 6:28 am MST
  • Sunset: 5:35 pm MST
  • ▼
  • Thursday
  • Oct 22, 2026
  • 73°F
  • 48°F
Thunderstorms
Thunderstorms
  • Precip. probability: 66%
  • Precipitation: 0.31"
  • Wind: 17mphS 178°
  • Humidity: 56%
  • UV index: 4
  • Sunrise: 6:29 am MST
  • Sunset: 5:34 pm MST
  • ▼
  • Friday
  • Oct 23, 2026
  • 66°F
  • 39°F
Sunny
Sunny
  • Precip. probability: 24%
  • Precipitation: 0"
  • Wind: 16mphW 263°
  • Humidity: 52%
  • UV index: 5
  • Sunrise: 6:29 am MST
  • Sunset: 5:33 pm MST
  • ▼
  • Saturday
  • Oct 24, 2026
  • 64°F
  • 41°F
Sunny
Sunny
  • Precip. probability: 13%
  • Precipitation: 0"
  • Wind: 10mphN 359°
  • Humidity: 50%
  • UV index: 5
  • Sunrise: 6:30 am MST
  • Sunset: 5:32 pm MST
  • ▼
  • Sunday
  • Oct 25, 2026
  • 68°F
  • 46°F
Partly Cloudy
Partly Cloudy
  • Precip. probability: 23%
  • Precipitation: 0"
  • Wind: 12mphSE 137°
  • Humidity: 45%
  • UV index: 5
  • Sunrise: 6:31 am MST
  • Sunset: 5:31 pm MST
  • ▼
  • Monday
  • Oct 26, 2026
  • 66°F
  • 45°F
Partly Cloudy
Partly Cloudy
  • Precip. probability: 24%
  • Precipitation: 0"
  • Wind: 13mphS 184°
  • Humidity: 50%
  • UV index: 5
  • Sunrise: 6:32 am MST
  • Sunset: 5:30 pm MST
  • ▼
  • Tuesday
  • Oct 27, 2026
  • 64°F
  • 41°F
Partly Cloudy
Partly Cloudy
  • Precip. probability: 6%
  • Precipitation: 0"
  • Wind: 12mphSSW 210°
  • Humidity: 51%
  • UV index: 5
  • Sunrise: 6:33 am MST
  • Sunset: 5:29 pm MST
  • ▼
cloudy, lightning-active and sun-filled weather is predicted.
Rain is forecasted for Tuesday through Thursday.
In the upcoming period, the highest temperature will range between 64.4°F and 75.2°F, while the variation in nighttime lows will be notably wide, as the minimum temperature is expected to range between 39.2°F and 57.2°F.
The warmest day will be Tuesday, with a maximum of 75.2°F; Saturday and next Tuesday, with the highest temperature of 64.4°F, will be the coldest days.
Updated: Oct 18, 2026 @ 12:50:19 UTC
Published by: Weather U.S. | About Us
Data Sources | weather.com | Weather
Weather Forecasting & Climate

Frequently asked questions

On Sunday, partly cloudy skies will persist, making for a mix of sun and clouds.

Today, the highest temperature in Saint Johns will be 71.6°F, while the lowest temperature will be 42.8°F.
The maximum temperature today will be in line with the average highest temperature in October. Today, the lowest temperature will be a couple of degrees lower than the average low temperature.

On Sunday, in Saint Johns, sunrise will be at 6:25 am and sunset at 5:39 pm (MST).

Today, the daylight will last for 11h and 14min.