Weather forecast for 10 daysKirby, MT

Weather forecast for the weekend

Sunday Oct 18, 2026

  • 66°F
  • 39°F
Mostly Sunny
Mostly Sunny
  • Precip. probability: 1%
  • Precipitation: 0"
  • Wind: 11mphENE 61°
  • Humidity: 40%
  • UV index: 3
  • Sunrise: 7:28 am MDT
  • Sunset: 6:17 pm MDT
  • ▼
On Sunday, in Kirby, mostly clear skies and sunshine will create ideal daytime conditions.
Day and night temperatures will sharply contrast, oscillating between a comfortable 66.2°F and a wintry 39.2°F.
Today, climate comparisons show a temperature closer to September's 74.1°F than October's 56.8°F.
Sunrise will be at 7:28 am and sunset at 6:17 pm; the daylight will last for 10h and 49min.

10-day overview

Daily temperatures

Warmest day: Thursday 75°C.
Coldest day: Tuesday 27.10. 50°C.

Chance of precipitation

Highest chance: Friday 72%.

Long-term weather forecast

  • Sunday
  • Oct 18, 2026
  • 66°F
  • 39°F
Mostly Sunny
Mostly Sunny
  • Precip. probability: 1%
  • Precipitation: 0"
  • Wind: 11mphENE 61°
  • Humidity: 40%
  • UV index: 3
  • Sunrise: 7:28 am MDT
  • Sunset: 6:17 pm MDT
  • ▼
  • Monday
  • Oct 19, 2026
  • 72°F
  • 41°F
Sunny
Sunny
  • Precip. probability: 2%
  • Precipitation: 0"
  • Wind: 10mphSE 133°
  • Humidity: 43%
  • UV index: 3
  • Sunrise: 7:29 am MDT
  • Sunset: 6:15 pm MDT
  • ▼
  • Tuesday
  • Oct 20, 2026
  • 72°F
  • 41°F
Sunny
Sunny
  • Precip. probability: 0%
  • Precipitation: 0"
  • Wind: 10mphNW 316°
  • Humidity: 36%
  • UV index: 3
  • Sunrise: 7:31 am MDT
  • Sunset: 6:14 pm MDT
  • ▼
  • Wednesday
  • Oct 21, 2026
  • 70°F
  • 45°F
Sunny
Sunny
  • Precip. probability: 4%
  • Precipitation: 0"
  • Wind: 11mphSE 128°
  • Humidity: 46%
  • UV index: 3
  • Sunrise: 7:32 am MDT
  • Sunset: 6:12 pm MDT
  • ▼
  • Thursday
  • Oct 22, 2026
  • 75°F
  • 48°F
Mostly Sunny
Mostly Sunny
  • Precip. probability: 2%
  • Precipitation: 0"
  • Wind: 7mphE 95°
  • Humidity: 41%
  • UV index: 3
  • Sunrise: 7:33 am MDT
  • Sunset: 6:10 pm MDT
  • ▼
  • Friday
  • Oct 23, 2026
  • 64°F
  • 36°F
PM Showers
PM Showers
  • Precip. probability: 72%
  • Precipitation: 0"
  • Wind: 13mphNW 308°
  • Humidity: 56%
  • UV index: 2
  • Sunrise: 7:35 am MDT
  • Sunset: 6:09 pm MDT
  • ▼
  • Saturday
  • Oct 24, 2026
  • 52°F
  • 34°F
Mostly Sunny
Mostly Sunny
  • Precip. probability: 22%
  • Precipitation: 0.35"
  • Wind: 11mphNW 321°
  • Humidity: 57%
  • UV index: 3
  • Sunrise: 7:36 am MDT
  • Sunset: 6:07 pm MDT
  • ▼
  • Sunday
  • Oct 25, 2026
  • 55°F
  • 32°F
Mostly Sunny
Mostly Sunny
  • Precip. probability: 7%
  • Precipitation: 0"
  • Wind: 9mphENE 74°
  • Humidity: 58%
  • UV index: 3
  • Sunrise: 7:37 am MDT
  • Sunset: 6:06 pm MDT
  • ▼
  • Monday
  • Oct 26, 2026
  • 52°F
  • 30°F
Partly Cloudy
Partly Cloudy
  • Precip. probability: 4%
  • Precipitation: 0"
  • Wind: 8mphN 5°
  • Humidity: 57%
  • UV index: 3
  • Sunrise: 7:39 am MDT
  • Sunset: 6:04 pm MDT
  • ▼
  • Tuesday
  • Oct 27, 2026
  • 50°F
  • 30°F
Mostly Sunny
Mostly Sunny
  • Precip. probability: 10%
  • Precipitation: 0"
  • Wind: 9mphNNW 328°
  • Humidity: 62%
  • UV index: 3
  • Sunrise: 7:40 am MDT
  • Sunset: 6:02 pm MDT
  • ▼
Models point to a combination of primarily sunny and occasionally damp and overcast weather is anticipated.
With a probability of 22%, rainfall is predicted only for Saturday. The precipitation will be light at 0.35".
There will be a considerable variation in temperature over the next several days. Highs will range from 50°F to 75.2°F, while the fluctuation in night temperatures will be also significant, as the overnight lows will vary from 30.2°F to 48.2°F.
With the highest temperature of 75.2°F, Thursday will be the warmest day; the coldest day will be next Tuesday, with a maximum of 50°F.
Updated: Oct 18, 2026 @ 06:38:16 UTC
Published by: Weather U.S. | About Us
Data Sources | weather.com | Weather
Weather Forecasting & Climate

Frequently asked questions

On Sunday, sun-filled skies will remain for most of the day.

Today, the highest temperature will be 66.2°F, while the lowest temperature will be 39.2°F.
The highest temperature today will be noticeably higher than the average maximum of 56.8°F in October. The lowest temperature will be in line with the average low of 39°F.

On Sunday, in Kirby, sunrise will be at 7:28 am and sunset at 6:17 pm (MDT).

In Kirby, the length of the day today will be 10h and 49min.