Weather forecast for 10 days
Saint John, UT

Weather forecast for the weekend

Saturday, Jun 21.

Sunny
5:58 am

9:04 pm
MDT
Sunny
73°F / 41°F
  • Wind: 18mph N
  • Humidity: 26%
  • Precip. probability: 1%
  • Precipitation: 0"
  • UV index: 9
On Saturday, in Saint John, conditions will remain bright with clear skies.
The daytime temperature will peak at a moderately hot 73.4°F, significantly contrasting with the night's low of a wintry 41°F.
On Saturday, the expected high will be slightly cooler than the average June maximum of 77.9°F.
Sunrise will be at 5:58 am and sunset at 9:04 pm; the daylight will last for 15h and 7min.

Sunday, Jun 22.

Sunny
5:58 am

9:05 pm
MDT
Sunny
70°F / 43°F
  • Wind: 12mph N
  • Humidity: 28%
  • Precip. probability: 1%
  • Precipitation: 0"
  • UV index: 9
On Sunday, in Saint John, the weather remains calm, bright, and sunny.
A high of an agreeable 69.8°F during the day contrasts markedly with a low of a brisk 42.8°F at night.
The anticipated high is colder and better reflects May's normal temperature profile than that of June.
Sunrise will be at 5:58 am and sunset at 9:05 pm; the daylight will last for 15h and 7min.

Frequently asked questions

What is the weather forecast for Saint John for Saturday?
On Saturday, in Saint John, clear skies and sunshine are anticipated.
What will be the maximum temperature on Saturday?
On Saturday, the maximum temperature will be 73.4°F, while the minimum temperature will be 41°F.
What is the weather forecast for Saint John for Sunday?
On Sunday, sunshine is expected with little to no cloud cover.
What will be the highest temperature on Sunday?
On Sunday, the highest temperature will be 69.8°F, while the lowest temperature will be 42.8°F.
What is the weather forecast for Saint John for the next ten days?
In Saint John, predominantly bright and occasionally cloud-filled weather is expected for the next ten days.
How hot will it be in the next ten days?
The maximum temperature will range between 69.8°F and 100.4°F, as the minimum temperature will vary between 41°F and 62.6°F.
What will be the hottest and the coldest days?
Tomorrow will be the hottest day, with a maximum temperature of 100.4°F. The coldest day will be Sunday, with a maximum of 69.8°F.

Long-term weather forecast

WedJun 18.
  • 93°F
  • 61°F
Sunny
Sunny
  • Wind: 8mph SE
  • Humidity: 23%
  • UV index: 9
  • Precip. probability: 1%
  • Precipitation: 0"
  • 5:57 am 9:04 pm MDT
ThuJun 19.
  • 100°F
  • 63°F
Sunny / Wind
Sunny / Wind
  • Wind: 24mph S
  • Humidity: 11%
  • UV index: 9
  • Precip. probability: 0%
  • Precipitation: 0"
  • 5:58 am 9:04 pm MDT
FriJun 20.
  • 95°F
  • 52°F
Sunny / Wind
Sunny / Wind
  • Wind: 25mph SSW
  • Humidity: 11%
  • UV index: 9
  • Precip. probability: 0%
  • Precipitation: 0"
  • 5:58 am 9:04 pm MDT
SatJun 21.
  • 73°F
  • 41°F
Sunny
Sunny
  • Wind: 18mph N
  • Humidity: 26%
  • UV index: 9
  • Precip. probability: 1%
  • Precipitation: 0"
  • 5:58 am 9:04 pm MDT
SunJun 22.
  • 70°F
  • 43°F
Sunny
Sunny
  • Wind: 12mph N
  • Humidity: 28%
  • UV index: 9
  • Precip. probability: 1%
  • Precipitation: 0"
  • 5:58 am 9:05 pm MDT
MonJun 23.
  • 81°F
  • 48°F
Mostly Sunny
Mostly Sunny
  • Wind: 10mph ENE
  • Humidity: 19%
  • UV index: 9
  • Precip. probability: 0%
  • Precipitation: 0"
  • 5:59 am 9:05 pm MDT
TueJun 24.
  • 86°F
  • 55°F
Mostly Sunny
Mostly Sunny
  • Wind: 11mph SSE
  • Humidity: 17%
  • UV index: 9
  • Precip. probability: 0%
  • Precipitation: 0"
  • 5:59 am 9:05 pm MDT
WedJun 25.
  • 88°F
  • 57°F
Partly Cloudy
Partly Cloudy
  • Wind: 11mph NE
  • Humidity: 17%
  • UV index: 9
  • Precip. probability: 2%
  • Precipitation: 0"
  • 5:59 am 9:05 pm MDT
ThuJun 26.
  • 93°F
  • 61°F
Sunny
Sunny
  • Wind: 11mph E
  • Humidity: 13%
  • UV index: 9
  • Precip. probability: 0%
  • Precipitation: 0"
  • 6:00 am 9:05 pm MDT
FriJun 27.
  • 97°F
  • 63°F
Sunny
Sunny
  • Wind: 12mph S
  • Humidity: 11%
  • UV index: 9
  • Precip. probability: 0%
  • Precipitation: 0"
  • 6:00 am 9:05 pm MDT
Ten-day trends indicate that primarily mostly clear and occasionally gloomy weather is anticipated.
Rainfall is not predicted in Saint John in the upcoming period.
Expect a substantial fluctuation in daytime highs in the next ten days. The temperature is expected to swing from 69.8°F up to 100.4°F, while the nightly low temperatures will show also a considerable swing, as temperatures overnight will fluctuate from 41°F up to 62.6°F.
The hottest day will be Thursday, with a maximum of 100.4°F; the lowest daytime temperature of the period will be reached on Sunday, peaking at 69.8°F.
Updated: Jun 18, 2025 @ 11:37:44 UTC
Published by: Weather U.S. | About Us
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