Weather forecast for 10 days
Boulder, MT

Weather forecast for the weekend

Saturday, May 10.

Mostly Cloudy
5:59 am

8:50 pm
MDT
Mostly Cloudy
79°F / 50°F
  • Wind: 16mph SSW
  • Humidity: 32%
  • Precip. probability: 24%
  • Precipitation: 0"
  • UV index: 7
On Saturday, May 10, gray skies will define the day.
Temperature changes will be considerable, from a high of a warm 78.8°F to a low of a crisp 50°F.
The maximum temperature will be higher and more in tune with June's average of 68.5°F than with May's.
Sunrise will be at 5:59 am and sunset at 8:50 pm; the daylight will last for 14h and 52min.

Sunday, May 11.

Cloudy
5:57 am

8:51 pm
MDT
Cloudy
72°F / 46°F
  • Wind: 16mph SSW
  • Humidity: 43%
  • Precip. probability: 24%
  • Precipitation: 0"
  • UV index: 4
On Sunday, May 11, overcast skies are expected.
The temperature is anticipated to vary between a delightful 71.6°F and a frosty 46.4°F.
The forecast high is higher and more aligned with what is typical in June than in May.
Sunrise will be at 5:57 am and sunset at 8:51 pm; the daylight will last for 14h and 54min.

Frequently asked questions

What is the weather forecast for Boulder for Saturday?
On Saturday, clouds will hold steady, keeping conditions mostly dim.
What will be the maximum temperature on Saturday?
On Saturday, the maximum temperature will be 78.8°F, while the minimum temperature will be 50°F.
What is the weather forecast for Boulder for Sunday?
On Sunday, low clouds will cover the sky.
What will be the maximum temperature on Sunday?
On Sunday, the highest temperature will be 71.6°F, while the lowest temperature will be 46.4°F.
What is the weather forecast for Boulder for the next ten days?
In Boulder, weather will be unstable, and a combination of predominantly dull and occasionally sunny, damp and snowy weather is anticipated for the next ten days.
Will it rain in the next ten days?
Rainfall is expected only on Tuesday. With a probability of 45%, light precipitation of 0.39" is expected.
Will it snow in the next ten days?
Snowfall is predicted only for Wednesday. With a probability of 59%, substantial precipitation of 0.39" is expected.
How warm will it be in the next ten days?
The maximum temperature will vary between 50°F and 78.8°F, as the minimum temperature will vary between 37.4°F and 50°F.
What will be the warmest and the coldest days in Boulder?
The warmest day will be Saturday, with a maximum of 78.8°F. The coldest days will be Tuesday and Wednesday, with a maximum of 50°F.

Long-term weather forecast

ThuMay 8.
  • min.
  • 41°F
Clear
Clear
  • Wind: 10mph WNW
  • Humidity: 49%
  • UV index: 0
  • Precip. probability: 2%
  • Precipitation: 0"
  • 6:01 am 8:48 pm MDT
FriMay 9.
  • 77°F
  • 46°F
Mostly Sunny
Mostly Sunny
  • Wind: 11mph SW
  • Humidity: 31%
  • UV index: 7
  • Precip. probability: 2%
  • Precipitation: 0"
  • 6:00 am 8:49 pm MDT
SatMay 10.
  • 79°F
  • 50°F
Mostly Cloudy
Mostly Cloudy
  • Wind: 16mph SSW
  • Humidity: 32%
  • UV index: 7
  • Precip. probability: 24%
  • Precipitation: 0"
  • 5:59 am 8:50 pm MDT
SunMay 11.
  • 72°F
  • 46°F
Cloudy
Cloudy
  • Wind: 16mph SSW
  • Humidity: 43%
  • UV index: 4
  • Precip. probability: 24%
  • Precipitation: 0"
  • 5:57 am 8:51 pm MDT
MonMay 12.
  • 63°F
  • 39°F
Partly Cloudy
Partly Cloudy
  • Wind: 16mph WSW
  • Humidity: 45%
  • UV index: 6
  • Precip. probability: 24%
  • Precipitation: 0"
  • 5:56 am 8:53 pm MDT
TueMay 13.
  • 50°F
  • 37°F
PM Showers
PM Showers
  • Wind: 11mph NNW
  • Humidity: 65%
  • UV index: 4
  • Precip. probability: 45%
  • Precipitation: 0.39"
  • 5:55 am 8:54 pm MDT
WedMay 14.
  • 50°F
  • 37°F
Rain / Snow Showers
Rain / Snow Showers
  • Wind: 12mph NW
  • Humidity: 73%
  • UV index: 3
  • Precip. probability: 59%
  • Precipitation: 0.35"
  • 5:54 am 8:55 pm MDT
ThuMay 15.
  • 59°F
  • 39°F
Mostly Cloudy
Mostly Cloudy
  • Wind: 11mph NW
  • Humidity: 52%
  • UV index: 5
  • Precip. probability: 24%
  • Precipitation: 0"
  • 5:52 am 8:56 pm MDT
FriMay 16.
  • 61°F
  • 39°F
Partly Cloudy
Partly Cloudy
  • Wind: 11mph WNW
  • Humidity: 49%
  • UV index: 6
  • Precip. probability: 22%
  • Precipitation: 0"
  • 5:51 am 8:57 pm MDT
SatMay 17.
  • 66°F
  • 39°F
Partly Cloudy
Partly Cloudy
  • Wind: 13mph WNW
  • Humidity: 47%
  • UV index: 6
  • Precip. probability: 24%
  • Precipitation: 0"
  • 5:50 am 8:59 pm MDT
Weather fluctuations are likely over the next ten days, and a combination of primarily cloudy and occasionally bright, rainy and snow-covered weather is forecasted.
With a 45% probability, rainfall is expected only on Tuesday. Expected precipitation will be light at 0.39".
With a probability of 59%, snowfall is expected only on Wednesday. The precipitation will be increased at 0.39".
Temperature differences will be noticeable over the next several days. Forecast highs will fluctuate between 50°F and 78.8°F, while the nightly low temperatures will show also a considerable swing, as the lowest temperatures will be recorded between 37.4°F and 50°F.
Saturday will be the warmest day, with a maximum temperature of 78.8°F; with a maximum temperature of 50°F, Tuesday and Wednesday will be the coldest days in Boulder.
Updated: May 9, 2025 @ 02:31:18 UTC
Published by: Weather U.S. | About Us
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Weather Forecasting & Climate
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