Weather forecast for 10 daysHarlem, MT

Weather forecast for the weekend

Saturday Oct 17, 2026

  • 79°F
  • 36°F
Partly Cloudy
Partly Cloudy
  • Precip. probability: 0%
  • Precipitation: 0"
  • Wind: 19mphW 259°
  • Humidity: 18%
  • UV index: 3
  • Sunrise: 7:38 am MDT
  • Sunset: 6:22 pm MDT
  • ▼
On Saturday, in Harlem, sunlight and clouds will take turns dominating the sky.
The day's temperature scale will range from a significant high of a temperate 78.8°F to a minimum of a wintry 35.6°F.
Expect temperatures to match September's average maximum of 70°F rather than October's 53.6°F.
Sunrise was at 7:38 am and sunset will be at 6:22 pm; the daylight will last for 10h and 44min.

Sunday Oct 18, 2026

  • 61°F
  • 36°F
Partly Cloudy
Partly Cloudy
  • Precip. probability: 4%
  • Precipitation: 0"
  • Wind: 9mphE 79°
  • Humidity: 48%
  • UV index: 3
  • Sunrise: 7:40 am MDT
  • Sunset: 6:20 pm MDT
  • ▼
On Sunday, October 18, moments of sunshine will break through the patchy clouds.
The temperature is anticipated to oscillate between a maximum of an enjoyable 60.8°F and a minimum of a cold 35.6°F.
Tomorrow, the peak temperature is predicted to be a few degrees higher than the usual high for October at 53.6°F.
Sunrise will be at 7:40 am and sunset at 6:20 pm; tomorrow's daylight will last for 10h and 40min.

10-day overview

Daily temperatures

Warmest day: today 79°C.
Coldest period: Sunday - Monday 45°C.

Chance of precipitation

Highest chance: Friday 36%.

Long-term weather forecast

  • Saturday
  • Oct 17, 2026
  • 79°F
  • 36°F
Partly Cloudy
Partly Cloudy
  • Precip. probability: 0%
  • Precipitation: 0"
  • Wind: 19mphW 259°
  • Humidity: 18%
  • UV index: 3
  • Sunrise: 7:38 am MDT
  • Sunset: 6:22 pm MDT
  • ▼
  • Sunday
  • Oct 18, 2026
  • 61°F
  • 36°F
Partly Cloudy
Partly Cloudy
  • Precip. probability: 4%
  • Precipitation: 0"
  • Wind: 9mphE 79°
  • Humidity: 48%
  • UV index: 3
  • Sunrise: 7:40 am MDT
  • Sunset: 6:20 pm MDT
  • ▼
  • Monday
  • Oct 19, 2026
  • 64°F
  • 36°F
Partly Cloudy
Partly Cloudy
  • Precip. probability: 2%
  • Precipitation: 0"
  • Wind: 11mphESE 109°
  • Humidity: 54%
  • UV index: 2
  • Sunrise: 7:41 am MDT
  • Sunset: 6:18 pm MDT
  • ▼
  • Tuesday
  • Oct 20, 2026
  • 63°F
  • 32°F
Partly Cloudy
Partly Cloudy
  • Precip. probability: 6%
  • Precipitation: 0"
  • Wind: 8mphNNW 329°
  • Humidity: 60%
  • UV index: 2
  • Sunrise: 7:43 am MDT
  • Sunset: 6:16 pm MDT
  • ▼
  • Wednesday
  • Oct 21, 2026
  • 66°F
  • 39°F
Sunny
Sunny
  • Precip. probability: 5%
  • Precipitation: 0"
  • Wind: 12mphESE 117°
  • Humidity: 60%
  • UV index: 2
  • Sunrise: 7:44 am MDT
  • Sunset: 6:14 pm MDT
  • ▼
  • Thursday
  • Oct 22, 2026
  • 68°F
  • 43°F
Partly Cloudy
Partly Cloudy
  • Precip. probability: 6%
  • Precipitation: 0"
  • Wind: 7mphENE 63°
  • Humidity: 61%
  • UV index: 2
  • Sunrise: 7:46 am MDT
  • Sunset: 6:12 pm MDT
  • ▼
  • Friday
  • Oct 23, 2026
  • 57°F
  • 36°F
PM Showers
PM Showers
  • Precip. probability: 36%
  • Precipitation: 0.08"
  • Wind: 16mphWNW 301°
  • Humidity: 71%
  • UV index: 1
  • Sunrise: 7:47 am MDT
  • Sunset: 6:11 pm MDT
  • ▼
  • Saturday
  • Oct 24, 2026
  • 48°F
  • 28°F
Partly Cloudy
Partly Cloudy
  • Precip. probability: 11%
  • Precipitation: 0"
  • Wind: 17mphWNW 294°
  • Humidity: 67%
  • UV index: 2
  • Sunrise: 7:49 am MDT
  • Sunset: 6:09 pm MDT
  • ▼
  • Sunday
  • Oct 25, 2026
  • 45°F
  • 28°F
Partly Cloudy
Partly Cloudy
  • Precip. probability: 21%
  • Precipitation: 0"
  • Wind: 11mphENE 65°
  • Humidity: 73%
  • UV index: 2
  • Sunrise: 7:50 am MDT
  • Sunset: 6:07 pm MDT
  • ▼
  • Monday
  • Oct 26, 2026
  • 45°F
  • 28°F
Mostly Sunny
Mostly Sunny
  • Precip. probability: 8%
  • Precipitation: 0"
  • Wind: 9mphE 88°
  • Humidity: 72%
  • UV index: 2
  • Sunrise: 7:52 am MDT
  • Sunset: 6:05 pm MDT
  • ▼
Primarily overcast and occasionally sunny and wet weather is predicted.
With a probability of 36%, rainfall is anticipated only on Friday. The precipitation will be minimal at 0.08".
Substantial differences in temperature are forecasted over the next several days. Forecast highs will fluctuate between 44.6°F and 78.8°F, while the difference in minimum temperatures will be also substantial, as the lowest temperatures will be recorded between 28.4°F and 42.8°F.
With a high of 78.8°F, today is the warmest day; next Sunday and Monday, with the highest temperature of 44.6°F, will be the coldest days.
Updated: Oct 17, 2026 @ 19:52:40 UTC
Published by: Weather U.S. | About Us
Data Sources | weather.com | Weather
Weather Forecasting & Climate

Frequently asked questions

On Saturday, in Harlem, a partly cloudy sky is anticipated.

Today, the maximum temperature will be 78.8°F, while the minimum temperature will be 35.6°F.
Today, the maximum temperature will be significantly higher than the average highest temperature of 53.6°F in October. The lowest temperature will be in line with the average low of 38.3°F.

On Saturday, in Harlem, sunrise was at 7:38 am and sunset will be at 6:22 pm (MDT).

In Harlem, today, there will be 10h and 44min of daylight.

On Sunday, high-altitude clouds may scatter across the sky, but the sun will still shine.

Tomorrow, the maximum temperature will be 60.8°F, while the minimum temperature will be 35.6°F.
The highest temperature will be relatively higher than the average maximum of 53.6°F in October. Tomorrow, the lowest temperature will be in line with the average low temperature.

On Sunday, in Harlem, sunrise will be at 7:40 am and sunset at 6:20 pm (MDT).

Tomorrow, the daylight will last for 10h and 40min.