Weather forecast for tomorrowIsmay, MT

Weather forecast for tomorrow

Monday Oct 19, 2026

  • 70°F
  • 41°F
Sunny / Wind
Sunny / Wind
  • Precip. probability: 0%
  • Precipitation: 0"
  • Wind: 21mphSSE 147°
  • Humidity: 35%
  • UV index: 3
  • Sunrise: 7:22 am MDT
  • Sunset: 6:05 pm MDT
  • ▼
Tomorrow, in Ismay, windy and sunny weather is also anticipated.
The peak daytime temperature will touch an agreeable 69.8°F, while the nighttime temperature will descend to a cold 41°F.
The predicted high will feel warmer, consistent with September's climate average of 72.1°F.
Sunrise will be at 7:22 am and sunset at 6:05 pm; tomorrow's daylight will last for 10h and 43min.

Hourly overview

Hourly temperatures

Warmest hour: 3 pm 68°C.
Coldest hour: 6 am 41°C.

Chance of precipitation

Highest chance: 12 am - 9 pm 0%.

Hourly weather forecast

  • 12 am
  • 45°F
  • Feels like:
    39°F
Mostly Clear
Mostly Clear
  • Precip. probability: 0%
  • Precipitation: 0"
  • Wind: 9mphESE 118°
  • Humidity: 52%
  • Pressure: 30.21"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
  • 2 am
  • 43°F
  • Feels like:
    37°F
Clear
Clear
  • Precip. probability: 0%
  • Precipitation: 0"
  • Wind: 11mphSE 127°
  • Humidity: 54%
  • Pressure: 30.18"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
  • 4 am
  • 41°F
  • Feels like:
    36°F
Clear
Clear
  • Precip. probability: 0%
  • Precipitation: 0"
  • Wind: 11mphSE 133°
  • Humidity: 55%
  • Pressure: 30.18"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
  • 6 am
  • 41°F
  • Feels like:
    34°F
Clear
Clear
  • Precip. probability: 0%
  • Precipitation: 0"
  • Wind: 12mphSE 134°
  • Humidity: 54%
  • Pressure: 30.18"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
Sunrise: 7:22 am
  • 8 am
  • 43°F
  • Feels like:
    36°F
Sunny
Sunny
  • Precip. probability: 0%
  • Precipitation: 0"
  • Wind: 13mphSE 143°
  • Humidity: 55%
  • Pressure: 30.18"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
  • 10 am
  • 54°F
  • Feels like:
    50°F
Sunny
Sunny
  • Precip. probability: 0%
  • Precipitation: 0"
  • Wind: 17mphSSE 150°
  • Humidity: 40%
  • Pressure: 30.12"Hg
  • Visibility: 10mi
  • UV index: 1
  • ▼
  • 12 pm
  • 63°F
  • Feels like:
    61°F
Sunny / Wind
Sunny / Wind
  • Precip. probability: 0%
  • Precipitation: 0"
  • Wind: 20mphSSE 154°
  • Humidity: 29%
  • Pressure: 30.06"Hg
  • Visibility: 10mi
  • UV index: 3
  • ▼
  • 2 pm
  • 66°F
  • Feels like:
    66°F
Sunny / Wind
Sunny / Wind
  • Precip. probability: 0%
  • Precipitation: 0"
  • Wind: 21mphSSE 151°
  • Humidity: 25%
  • Pressure: 30"Hg
  • Visibility: 10mi
  • UV index: 2
  • ▼
  • 4 pm
  • 68°F
  • Feels like:
    68°F
Sunny
Sunny
  • Precip. probability: 0%
  • Precipitation: 0"
  • Wind: 19mphSSE 149°
  • Humidity: 25%
  • Pressure: 29.94"Hg
  • Visibility: 10mi
  • UV index: 1
  • ▼
  • 6 pm
  • 63°F
  • Feels like:
    61°F
Sunny
Sunny
  • Precip. probability: 0%
  • Precipitation: 0"
  • Wind: 16mphSE 140°
  • Humidity: 32%
  • Pressure: 29.97"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
Sunset: 6:05 pm
  • 8 pm
  • 55°F
  • Feels like:
    52°F
Clear
Clear
  • Precip. probability: 0%
  • Precipitation: 0"
  • Wind: 16mphSE 144°
  • Humidity: 44%
  • Pressure: 29.97"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
  • 10 pm
  • 52°F
  • Feels like:
    48°F
Clear
Clear
  • Precip. probability: 0%
  • Precipitation: 0"
  • Wind: 14mphSE 145°
  • Humidity: 54%
  • Pressure: 30"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
Tomorrow, a combination of bright and dull weather is forecasted.
The temperature will vary between a minimum of 41°F and a maximum of 68°F. The feels-like temperature will be between a minimum of 33.8°F and a maximum of 68°F. The warmest part of the day will be at 3 pm and 4 pm.
The temperature will feel more similar to September's average high than the expected maximum for October. The lowest temperature is consistent with October's typical minimum of 39.4°F.
Updated: Oct 18, 2026 @ 10:09:02 UTC
Published by: Weather U.S. | About Us
Data Sources | weather.com | Weather
Weather Forecasting & Climate

Frequently asked questions

On Monday, bright and breezy weather is expected.

Tomorrow, the highest temperature will be 69.8°F, while the lowest temperature will be 41°F.
The highest temperature will be uncommonly higher than the average maximum of 54.3°F in October. The lowest temperature will be in line with the average low of 39.4°F.

On Monday, in Ismay, sunrise will be at 7:22 am and sunset at 6:05 pm (MDT).

In Ismay, the length of the day tomorrow will be 10h and 43min.