Weather forecast for 10 daysSaint John, UT
Weather forecast for the weekend
Saturday Oct 17, 2026
- 68°F
- 41°F
Sunny
- Precip. probability: 0%
- Precipitation: 0"
- Wind: 9mphESE 111°
- Humidity: 24%
- UV index: 4
- Sunrise: 7:43 am MDT
- Sunset: 6:47 pm MDT
- details ▼
Today, the weather remains calm, bright, and sunny.
Dramatic temperature shifts from a high of an agreeable 68°F to a low of a cold 41°F are expected.
Today, the temperature forecast of 68°F will better match September's climate average than that of October.
Sunrise was at 7:43 am and sunset will be at 6:47 pm; the daylight will last for 11h and 4min.
Dramatic temperature shifts from a high of an agreeable 68°F to a low of a cold 41°F are expected.
Today, the temperature forecast of 68°F will better match September's climate average than that of October.
Sunrise was at 7:43 am and sunset will be at 6:47 pm; the daylight will last for 11h and 4min.
Sunday Oct 18, 2026
- 68°F
- 43°F
Mostly Sunny
- Precip. probability: 0%
- Precipitation: 0"
- Wind: 7mphS 172°
- Humidity: 37%
- UV index: 4
- Sunrise: 7:44 am MDT
- Sunset: 6:45 pm MDT
- details ▼
Tomorrow, in Saint John, blue skies and warm sunshine will define the conditions.
Temperatures are expected to peak at a delightful 68°F and drop to a minimum of a frosty 42.8°F.
Tomorrow, the expected temperature appears higher and closer to September's norm of 74.5°F.
Sunrise will be at 7:44 am and sunset at 6:45 pm; tomorrow's daylight will last for 11h and 1min.
Temperatures are expected to peak at a delightful 68°F and drop to a minimum of a frosty 42.8°F.
Tomorrow, the expected temperature appears higher and closer to September's norm of 74.5°F.
Sunrise will be at 7:44 am and sunset at 6:45 pm; tomorrow's daylight will last for 11h and 1min.
10-day overview
Daily temperatures
Warmest period: Tuesday - Wednesday 70°C.
Coldest day: Friday 52°C.
Coldest day: Friday 52°C.
Chance of precipitation
Highest chance: Friday 75%.
Long-term weather forecast
- Saturday
- Oct 17, 2026
- 68°F
- 41°F
Sunny
- Precip. probability: 0%
- Precipitation: 0"
- Wind: 9mphESE 111°
- Humidity: 24%
- UV index: 4
- Sunrise: 7:43 am MDT
- Sunset: 6:47 pm MDT
- details ▼
- Sunday
- Oct 18, 2026
- 68°F
- 43°F
Mostly Sunny
- Precip. probability: 0%
- Precipitation: 0"
- Wind: 7mphS 172°
- Humidity: 37%
- UV index: 4
- Sunrise: 7:44 am MDT
- Sunset: 6:45 pm MDT
- details ▼
- Monday
- Oct 19, 2026
- 68°F
- 48°F
Mostly Sunny
- Precip. probability: 1%
- Precipitation: 0"
- Wind: 11mphSSE 166°
- Humidity: 49%
- UV index: 4
- Sunrise: 7:45 am MDT
- Sunset: 6:44 pm MDT
- details ▼
- Tuesday
- Oct 20, 2026
- 70°F
- 48°F
Partly Cloudy
- Precip. probability: 20%
- Precipitation: 0"
- Wind: 10mphSSE 164°
- Humidity: 54%
- UV index: 4
- Sunrise: 7:46 am MDT
- Sunset: 6:42 pm MDT
- details ▼
- Wednesday
- Oct 21, 2026
- 70°F
- 52°F
Mostly Sunny
- Precip. probability: 10%
- Precipitation: 0"
- Wind: 11mphSE 145°
- Humidity: 55%
- UV index: 4
- Sunrise: 7:47 am MDT
- Sunset: 6:41 pm MDT
- details ▼
- Thursday
- Oct 22, 2026
- 64°F
- 45°F
PM Thunderstorms
- Precip. probability: 55%
- Precipitation: 0.31"
- Wind: 12mphSSE 151°
- Humidity: 67%
- UV index: 4
- Sunrise: 7:48 am MDT
- Sunset: 6:39 pm MDT
- details ▼
- Friday
- Oct 23, 2026
- 52°F
- 36°F
Rain
- Precip. probability: 75%
- Precipitation: 0.35"
- Wind: 11mphSW 224°
- Humidity: 81%
- UV index: 2
- Sunrise: 7:49 am MDT
- Sunset: 6:38 pm MDT
- details ▼
- Saturday
- Oct 24, 2026
- 55°F
- 41°F
Partly Cloudy
- Precip. probability: 20%
- Precipitation: 0"
- Wind: 8mphSSE 164°
- Humidity: 68%
- UV index: 4
- Sunrise: 7:50 am MDT
- Sunset: 6:37 pm MDT
- details ▼
- Sunday
- Oct 25, 2026
- 61°F
- 43°F
Partly Cloudy
- Precip. probability: 14%
- Precipitation: 0"
- Wind: 11mphSSE 160°
- Humidity: 55%
- UV index: 4
- Sunrise: 7:51 am MDT
- Sunset: 6:35 pm MDT
- details ▼
- Monday
- Oct 26, 2026
- 59°F
- 39°F
Partly Cloudy
- Precip. probability: 24%
- Precipitation: 0"
- Wind: 11mphS 184°
- Humidity: 57%
- UV index: 4
- Sunrise: 7:53 am MDT
- Sunset: 6:34 pm MDT
- details ▼
The next ten days will bring unstable conditions, and a mix of mostly clear, overcast, thunderstorm-prone and wet weather is expected.
Rainfall is forecasted for Thursday and Friday.
Substantial differences in temperature are forecasted in the upcoming days. The temperature is expected to swing from 51.8°F up to 69.8°F, while the fluctuation in night temperatures will be also significant, as the overnight lows will vary from 35.6°F to 51.8°F.
With a maximum temperature of 69.8°F, Tuesday and Wednesday will be the warmest days in Saint John; Friday will be the coldest day, with the highest temperature of 51.8°F.
Rainfall is forecasted for Thursday and Friday.
Substantial differences in temperature are forecasted in the upcoming days. The temperature is expected to swing from 51.8°F up to 69.8°F, while the fluctuation in night temperatures will be also significant, as the overnight lows will vary from 35.6°F to 51.8°F.
With a maximum temperature of 69.8°F, Tuesday and Wednesday will be the warmest days in Saint John; Friday will be the coldest day, with the highest temperature of 51.8°F.
Updated: Oct 17, 2026 @ 20:10:25 UTC
Published by: Weather U.S. | About Us
Data Sources | weather.com | Weather
Weather Forecasting & Climate
Published by: Weather U.S. | About Us
Data Sources | weather.com | Weather
Weather Forecasting & Climate
Frequently asked questions
Today, skies are expected to be clear and full of sunshine.
Today, the highest temperature will be 68°F, while the lowest temperature will be 41°F.
The highest temperature will be noticeably higher than the average maximum of 57.7°F in October. Today, the lowest temperature will be in line with the average low temperature.
The highest temperature will be noticeably higher than the average maximum of 57.7°F in October. Today, the lowest temperature will be in line with the average low temperature.
On Saturday, in Saint John, sunrise was at 7:43 am and sunset will be at 6:47 pm (MDT).
In Saint John, the length of the day today will be 11h and 4min.
Tomorrow, mainly sunny conditions will dominate the day.
Tomorrow, the maximum temperature will be 68°F, while the minimum temperature will be 42.8°F.
The highest temperature will be notably higher than the average maximum of 57.7°F in October. The lowest temperature will be in line with the average low of 40.6°F.
The highest temperature will be notably higher than the average maximum of 57.7°F in October. The lowest temperature will be in line with the average low of 40.6°F.
On Sunday, in Saint John, sunrise will be at 7:44 am and sunset at 6:45 pm (MDT).
Tomorrow, the daylight will last for 11h and 1min.





