Weather forecast for 10 days
Boulder, MT

Weather forecast for the weekend

Saturday, May 17.

Mostly Cloudy
5:50 am

8:59 pm
MDT
Mostly Cloudy
61°F / 43°F
  • Wind: 9mph SSE
  • Humidity: 57%
  • Precip. probability: 16%
  • Precipitation: 0.12"
  • UV index: 4
On Saturday, May 17, a mostly gray sky is forecasted with minimal brightness.
Minimal precipitation is anticipated. The highest temperature will be a breezy 60.8°F, while the lowest predicted temperature is a brisk 42.8°F.
The maximum temperature on Saturday is forecasted to match the regular May high of 58.5°F.
Sunrise will be at 5:50 am and sunset at 8:59 pm; the daylight will last for 15h and 8min.

Sunday, May 18.

Rain
5:49 am

9:00 pm
MDT
Rain
50°F / 37°F
  • Wind: 12mph NW
  • Humidity: 78%
  • Precip. probability: 67%
  • Precipitation: 0.39"
  • UV index: 3
On Sunday, May 18, persistent showers will keep conditions wet.
The chance of precipitation is high. However, the rainfall will be light. Predicted temperature values will span from a cool 50°F down to a wintry 37.4°F.
On Sunday, climate comparisons show a temperature closer to April's 46.4°F than May's 58.5°F.
Sunrise will be at 5:49 am and sunset at 9:00 pm; the daylight will last for 15h and 11min.

Frequently asked questions

What is the weather forecast for Boulder for Saturday?
On Saturday, gloomy and cloudy conditions will set the tone.
Will it rain on Saturday in Boulder?
On Saturday, there is a low probability of minimal rainfall in Boulder.
What will be the highest temperature on Saturday?
On Saturday, the maximum temperature will be 60.8°F, while the minimum temperature will be 42.8°F.
What is the weather forecast for Boulder for Sunday?
On Sunday, periods of rain are likely, bringing damp conditions.
Will it rain on Sunday?
With a probability of 67%, light precipitation of 0.39" is forecasted on Sunday.
What will be the highest temperature on Sunday?
On Sunday, the maximum temperature will be 50°F, while the minimum temperature will be 37.4°F.
What is the weather forecast for Boulder for the next ten days?
In Boulder, a combination of cloudy and showery weather is predicted for the next ten days.
Will it rain in the next ten days?
Rainfall is predicted for Wednesday, Friday through Sunday in Boulder. Sunday, with light precipitation of 0.39", will be the day with the most rainfall.
How warm will it be in the next ten days in Boulder?
The maximum temperature will range between 50°F and 66.2°F, while the minimum temperature will vary between 33.8°F and 42.8°F.
What will be the warmest and the coldest days?
Next Friday will be the warmest day, with a maximum temperature of 66.2°F. The coldest day will be Sunday, with a maximum of 50°F.

Long-term weather forecast

WedMay 14.
  • min.
  • 37°F
Light Rain Early
Light Rain Early
  • Wind: 8mph WNW
  • Humidity: 79%
  • UV index: 0
  • Precip. probability: 83%
  • Precipitation: 0.04"
  • 5:54 am 8:55 pm MDT
ThuMay 15.
  • 52°F
  • 34°F
Mostly Cloudy
Mostly Cloudy
  • Wind: 11mph NW
  • Humidity: 65%
  • UV index: 4
  • Precip. probability: 17%
  • Precipitation: 0"
  • 5:52 am 8:56 pm MDT
FriMay 16.
  • 55°F
  • 36°F
PM Showers
PM Showers
  • Wind: 7mph W
  • Humidity: 61%
  • UV index: 3
  • Precip. probability: 41%
  • Precipitation: 0.08"
  • 5:51 am 8:57 pm MDT
SatMay 17.
  • 61°F
  • 43°F
Mostly Cloudy
Mostly Cloudy
  • Wind: 9mph SSE
  • Humidity: 57%
  • UV index: 4
  • Precip. probability: 16%
  • Precipitation: 0.12"
  • 5:50 am 8:59 pm MDT
SunMay 18.
  • 50°F
  • 37°F
Rain
Rain
  • Wind: 12mph NW
  • Humidity: 78%
  • UV index: 3
  • Precip. probability: 67%
  • Precipitation: 0.39"
  • 5:49 am 9:00 pm MDT
MonMay 19.
  • 57°F
  • 39°F
Mostly Cloudy
Mostly Cloudy
  • Wind: 12mph WNW
  • Humidity: 58%
  • UV index: 6
  • Precip. probability: 24%
  • Precipitation: 0"
  • 5:48 am 9:01 pm MDT
TueMay 20.
  • 57°F
  • 34°F
Partly Cloudy
Partly Cloudy
  • Wind: 14mph WNW
  • Humidity: 50%
  • UV index: 6
  • Precip. probability: 20%
  • Precipitation: 0"
  • 5:47 am 9:02 pm MDT
WedMay 21.
  • 61°F
  • 37°F
Partly Cloudy
Partly Cloudy
  • Wind: 12mph WNW
  • Humidity: 43%
  • UV index: 7
  • Precip. probability: 4%
  • Precipitation: 0"
  • 5:46 am 9:03 pm MDT
ThuMay 22.
  • 64°F
  • 39°F
Partly Cloudy
Partly Cloudy
  • Wind: 11mph W
  • Humidity: 43%
  • UV index: 6
  • Precip. probability: 13%
  • Precipitation: 0"
  • 5:45 am 9:04 pm MDT
FriMay 23.
  • 66°F
  • 39°F
Partly Cloudy
Partly Cloudy
  • Wind: 11mph W
  • Humidity: 44%
  • UV index: 7
  • Precip. probability: 12%
  • Precipitation: 0"
  • 5:44 am 9:05 pm MDT
During the upcoming ten-day period, a combination of cloudy and rainy weather is forecasted.
Rainfall is anticipated on Wednesday, Friday through Sunday.
There will be a considerable variation in temperature in the upcoming days. Forecast highs will fluctuate between 50°F and 66.2°F, while the minimum temperature is forecast to range between 33.8°F and 42.8°F.
Next Friday will be the warmest day, with a maximum temperature of 66.2°F; Sunday will be the coldest day, with the highest temperature of 50°F.
Updated: May 14, 2025 @ 22:49:22 UTC
Published by: Weather U.S. | About Us
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Weather Forecasting & Climate
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