Weather forecast for 10 days
Roundup, MT

Weather forecast for the weekend

Saturday, May 3.

Sunny
5:54 am

8:27 pm
MDT
Sunny
84°F / 48°F
  • Wind: 10mph SW
  • Humidity: 29%
  • Precip. probability: 1%
  • Precipitation: 0"
  • UV index: 6
Tomorrow, on Saturday, skies will stay clear and sunny.
The day's temperature range will span from a high of a warm 84.2°F to a minimum of a chilly 48.2°F.
It will feel hotter, with a temperature more typical of June's average maximum of 75.2°F.
Sunrise will be at 5:54 am and sunset at 8:27 pm; tomorrow's daylight will last for 14h and 34min.

Sunday, May 4.

Mostly Sunny
5:52 am

8:29 pm
MDT
Mostly Sunny
81°F / 45°F
  • Wind: 15mph NW
  • Humidity: 32%
  • Precip. probability: 15%
  • Precipitation: 0"
  • UV index: 6
On Sunday, May 4, predominantly sunny weather will make for pleasant outdoor conditions.
A high of a warm 80.6°F during the day contrasts markedly with a low of a brisk 44.6°F at night.
On Sunday, expect warmer conditions as the high matches June's average of 75.2°F, not May's.
Sunrise will be at 5:52 am and sunset at 8:29 pm; the daylight will last for 14h and 37min.

Frequently asked questions

What is the weather forecast for Roundup for tomorrow?
On Saturday, a sun-drenched sky is anticipated.
What will be the highest temperature tomorrow?
Tomorrow, the highest temperature will be 84.2°F, while the lowest temperature will be 48.2°F.
Tomorrow, the maximum temperature will be uncommonly higher than the average highest temperature of 64.2°F in May. The lowest temperature will be in line with the average low of 45.7°F.
What time are sunrise and sunset tomorrow?
On Saturday, in Roundup, sunrise will be at 5:54 am and sunset at 8:27 pm (MDT).
How long will the day be tomorrow?
In Roundup, tomorrow, there will be 14h and 34min of daylight.
What is the weather forecast for Roundup for Sunday?
On Sunday, predominantly sunny weather will make for pleasant outdoor conditions.
What will be the highest temperature on Sunday?
On Sunday, the highest temperature will be 80.6°F, while the lowest temperature will be 44.6°F.
What is the weather forecast for Roundup for the next ten days?
In Roundup, a combination of sun-filled and gloomy weather is predicted for the next ten days.
Will it rain in the next ten days?
Rain is predicted only for Monday. With a probability of 24%, minimal precipitation of 0.04" is expected.
How hot will it be in the next ten days?
The maximum temperature will vary between 46.4°F and 84.2°F, as the minimum temperature will range between 37.4°F and 51.8°F.
What will be the hottest and the coldest days?
Tomorrow will be the hottest day, with a maximum temperature of 84.2°F. With a maximum temperature of 46.4°F, Monday will be the coldest day.

Long-term weather forecast

FriMay 2.
  • 77°F
  • 45°F
Mostly Sunny
Mostly Sunny
  • Wind: 14mph SW
  • Humidity: 25%
  • UV index: 6
  • Precip. probability: 0%
  • Precipitation: 0"
  • 5:55 am 8:26 pm MDT
SatMay 3.
  • 84°F
  • 48°F
Sunny
Sunny
  • Wind: 10mph SW
  • Humidity: 29%
  • UV index: 6
  • Precip. probability: 1%
  • Precipitation: 0"
  • 5:54 am 8:27 pm MDT
SunMay 4.
  • 81°F
  • 45°F
Mostly Sunny
Mostly Sunny
  • Wind: 15mph NW
  • Humidity: 32%
  • UV index: 6
  • Precip. probability: 15%
  • Precipitation: 0"
  • 5:52 am 8:29 pm MDT
MonMay 5.
  • 46°F
  • 37°F
Cloudy
Cloudy
  • Wind: 20mph N
  • Humidity: 72%
  • UV index: 3
  • Precip. probability: 24%
  • Precipitation: 0.04"
  • 5:51 am 8:30 pm MDT
TueMay 6.
  • 55°F
  • 37°F
Partly Cloudy
Partly Cloudy
  • Wind: 11mph NE
  • Humidity: 56%
  • UV index: 6
  • Precip. probability: 15%
  • Precipitation: 0"
  • 5:49 am 8:31 pm MDT
WedMay 7.
  • 73°F
  • 46°F
Sunny
Sunny
  • Wind: 14mph SSW
  • Humidity: 47%
  • UV index: 6
  • Precip. probability: 4%
  • Precipitation: 0"
  • 5:48 am 8:33 pm MDT
ThuMay 8.
  • 82°F
  • 50°F
Mostly Sunny
Mostly Sunny
  • Wind: 12mph W
  • Humidity: 35%
  • UV index: 7
  • Precip. probability: 4%
  • Precipitation: 0"
  • 5:46 am 8:34 pm MDT
FriMay 9.
  • 77°F
  • 48°F
Partly Cloudy
Partly Cloudy
  • Wind: 9mph N
  • Humidity: 36%
  • UV index: 7
  • Precip. probability: 3%
  • Precipitation: 0"
  • 5:45 am 8:35 pm MDT
SatMay 10.
  • 77°F
  • 52°F
Partly Cloudy
Partly Cloudy
  • Wind: 11mph S
  • Humidity: 42%
  • UV index: 7
  • Precip. probability: 16%
  • Precipitation: 0"
  • 5:44 am 8:36 pm MDT
SunMay 11.
  • 77°F
  • 50°F
Mostly Sunny
Mostly Sunny
  • Wind: 12mph SSW
  • Humidity: 43%
  • UV index: 7
  • Precip. probability: 14%
  • Precipitation: 0"
  • 5:42 am 8:38 pm MDT
Weather models show that a combination of clear and cloudy weather is anticipated.
With a 24% probability, rainfall is anticipated only on Monday. Forecasted precipitation will be minimal at 0.04".
There will be a considerable variation in temperature throughout the forecast window. The temperature is expected to swing from 46.4°F up to 84.2°F, while the nightly low temperatures will show also a considerable swing, as the minimum temperature is expected to range between 37.4°F and 51.8°F.
With the highest temperature of 84.2°F, Saturday will be the hottest day; expect the coldest day on Monday with a high of 46.4°F.
Updated: May 2, 2025 @ 16:27:09 UTC
Published by: Weather U.S. | About Us
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Weather Forecasting & Climate
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