Weather forecast for 10 days
Saint Johns, MT

Weather forecast for the weekend

Saturday, May 10.

Partly Cloudy
5:42 am

8:50 pm
MDT
Partly Cloudy
84°F / 54°F
  • Wind: 11mph SSW
  • Humidity: 31%
  • Precip. probability: 4%
  • Precipitation: 0"
  • UV index: 6
On Saturday, in Saint Johns, clouds and sunshine will alternate throughout the day.
Rainfall is not forecasted. Day and night temperatures will contrast sharply, ranging from a peak of a moderately hot 84.2°F to a low of a fresh 53.6°F.
An unusual hotter pattern is expected, as the day’s high matches June's typical max of 73°F.
Sunrise will be at 5:42 am and sunset at 8:50 pm; the daylight will last for 15h and 8min.

Sunday, May 11.

Mostly Cloudy
5:41 am

8:51 pm
MDT
Mostly Cloudy
81°F / 48°F
  • Wind: 13mph WNW
  • Humidity: 34%
  • Precip. probability: 24%
  • Precipitation: 0"
  • UV index: 5
On Sunday, in Saint Johns, mostly cloudy conditions are expected.
Rainfall is not forecasted. A substantial temperature fluctuation from a warm 80.6°F at its peak to a brisk 48.2°F at its lowest point is anticipated.
Conditions will lean warmer, as the high of 80.6°F is more representative of June's climate.
Sunrise will be at 5:41 am and sunset at 8:51 pm; the daylight will last for 15h and 11min.

Frequently asked questions

What is the weather forecast for Saint Johns for Saturday?
On Saturday, a mix of clouds and blue sky is expected.
Will it rain on Saturday?
No, it will not rain on Saturday.
What will be the maximum temperature on Saturday?
On Saturday, the highest temperature will be 84.2°F, while the lowest temperature will be 53.6°F.
What is the weather forecast for Saint Johns for Sunday?
On Sunday, in Saint Johns, the weather will feel mostly overcast.
Will it rain on Sunday?
No, it will not rain on Sunday.
What will be the maximum temperature on Sunday?
On Sunday, the highest temperature will be 80.6°F, while the lowest temperature will be 48.2°F.
What is the weather forecast for Saint Johns for the next ten days?
In Saint Johns, a combination of dull, rain-soaked and mostly clear weather is anticipated for the next ten days.
Will it rain in the next ten days?
With minimal precipitation of 0.04", rainfall is anticipated on Monday, next Monday and Tuesday in Saint Johns.
How hot will it be in the next ten days in Saint Johns?
The maximum temperature will vary between 59°F and 84.2°F, as the minimum temperature will vary between 30.2°F and 53.6°F.
What will be the hottest and the coldest days in Saint Johns?
Saturday will be the hottest day, with a maximum temperature of 84.2°F. The coldest days will be Monday and next Tuesday, with a maximum of 59°F.

Long-term weather forecast

MonMay 5.
  • 59°F
  • 30°F
AM Showers
AM Showers
  • Wind: 12mph N
  • Humidity: 56%
  • UV index: 3
  • Precip. probability: 84%
  • Precipitation: 0.04"
  • 5:50 am 8:43 pm MDT
TueMay 6.
  • 64°F
  • 37°F
Partly Cloudy
Partly Cloudy
  • Wind: 14mph ESE
  • Humidity: 38%
  • UV index: 6
  • Precip. probability: 2%
  • Precipitation: 0"
  • 5:48 am 8:44 pm MDT
WedMay 7.
  • 79°F
  • 46°F
Sunny
Sunny
  • Wind: 17mph S
  • Humidity: 44%
  • UV index: 6
  • Precip. probability: 5%
  • Precipitation: 0"
  • 5:47 am 8:46 pm MDT
ThuMay 8.
  • 77°F
  • 41°F
Mostly Sunny / Wind
Mostly Sunny / Wind
  • Wind: 21mph W
  • Humidity: 31%
  • UV index: 6
  • Precip. probability: 2%
  • Precipitation: 0"
  • 5:45 am 8:47 pm MDT
FriMay 9.
  • 75°F
  • 45°F
Partly Cloudy
Partly Cloudy
  • Wind: 7mph SSW
  • Humidity: 34%
  • UV index: 6
  • Precip. probability: 0%
  • Precipitation: 0"
  • 5:44 am 8:48 pm MDT
SatMay 10.
  • 84°F
  • 54°F
Partly Cloudy
Partly Cloudy
  • Wind: 11mph SSW
  • Humidity: 31%
  • UV index: 6
  • Precip. probability: 4%
  • Precipitation: 0"
  • 5:42 am 8:50 pm MDT
SunMay 11.
  • 81°F
  • 48°F
Mostly Cloudy
Mostly Cloudy
  • Wind: 13mph WNW
  • Humidity: 34%
  • UV index: 5
  • Precip. probability: 24%
  • Precipitation: 0"
  • 5:41 am 8:51 pm MDT
MonMay 12.
  • 66°F
  • 43°F
Partly Cloudy
Partly Cloudy
  • Wind: 16mph WNW
  • Humidity: 47%
  • UV index: 6
  • Precip. probability: 24%
  • Precipitation: 0.04"
  • 5:39 am 8:53 pm MDT
TueMay 13.
  • 59°F
  • 39°F
AM Showers
AM Showers
  • Wind: 16mph NW
  • Humidity: 56%
  • UV index: 4
  • Precip. probability: 36%
  • Precipitation: 0.04"
  • 5:38 am 8:54 pm MDT
WedMay 14.
  • 63°F
  • 41°F
Mostly Cloudy
Mostly Cloudy
  • Wind: 16mph NW
  • Humidity: 51%
  • UV index: 5
  • Precip. probability: 20%
  • Precipitation: 0"
  • 5:36 am 8:55 pm MDT
Looking ahead, conditions suggest a period of overcast, damp and clear weather is forecasted.
With minimal precipitation of 0.04", rainfall is predicted for Monday, next Monday and Tuesday.
Expect a substantial fluctuation in daytime highs over the next several days. The maximum temperature will vary between 59°F and 84.2°F, while the lowest nightly temperature differences will be also quite pronounced, as the lowest temperatures will be recorded between 30.2°F and 53.6°F.
Expect the hottest day on Saturday, with temperatures peaking at 84.2°F; with a maximum temperature of 59°F, Monday and next Tuesday will be the coldest days in Saint Johns.
Updated: May 5, 2025 @ 10:52:54 UTC
Published by: Weather U.S. | About Us
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