Weather forecast for 10 daysArnold, ND

Weather forecast for the weekend

Sunday Oct 18, 2026

  • 66°F
  • 32°F
Partly Cloudy
Partly Cloudy
  • Precip. probability: 1%
  • Precipitation: 0"
  • Wind: 13mphNNW 343°
  • Humidity: 40%
  • UV index: 3
  • Sunrise: 8:05 am CDT
  • Sunset: 6:50 pm CDT
  • ▼
Today, partly cloudy skies will persist, making for a mix of sun and clouds.
Substantial temperature variations are expected, soaring to a maximum of a comfortable 66.2°F and descending to a minimum of an icy 32°F.
Meteorological data shows 66.2°F is more characteristic of September's climate profile than October's.
Sunrise will be at 8:05 am and sunset at 6:50 pm; the daylight will last for 10h and 45min.

10-day overview

Daily temperatures

Warmest day: Thursday 73°C.
Coldest day: Tuesday 27.10. 50°C.

Chance of precipitation

Highest chance: Saturday 37%.

Long-term weather forecast

  • Sunday
  • Oct 18, 2026
  • 66°F
  • 32°F
Partly Cloudy
Partly Cloudy
  • Precip. probability: 1%
  • Precipitation: 0"
  • Wind: 13mphNNW 343°
  • Humidity: 40%
  • UV index: 3
  • Sunrise: 8:05 am CDT
  • Sunset: 6:50 pm CDT
  • ▼
  • Monday
  • Oct 19, 2026
  • 64°F
  • 37°F
Sunny
Sunny
  • Precip. probability: 2%
  • Precipitation: 0"
  • Wind: 14mphESE 118°
  • Humidity: 48%
  • UV index: 3
  • Sunrise: 8:07 am CDT
  • Sunset: 6:48 pm CDT
  • ▼
  • Tuesday
  • Oct 20, 2026
  • 70°F
  • 41°F
Sunny
Sunny
  • Precip. probability: 8%
  • Precipitation: 0"
  • Wind: 12mphSSE 163°
  • Humidity: 66%
  • UV index: 3
  • Sunrise: 8:08 am CDT
  • Sunset: 6:46 pm CDT
  • ▼
  • Wednesday
  • Oct 21, 2026
  • 64°F
  • 39°F
Sunny
Sunny
  • Precip. probability: 7%
  • Precipitation: 0"
  • Wind: 9mphNE 44°
  • Humidity: 65%
  • UV index: 3
  • Sunrise: 8:09 am CDT
  • Sunset: 6:45 pm CDT
  • ▼
  • Thursday
  • Oct 22, 2026
  • 73°F
  • 55°F
Mostly Sunny
Mostly Sunny
  • Precip. probability: 8%
  • Precipitation: 0"
  • Wind: 16mphSSE 154°
  • Humidity: 69%
  • UV index: 3
  • Sunrise: 8:11 am CDT
  • Sunset: 6:43 pm CDT
  • ▼
  • Friday
  • Oct 23, 2026
  • 72°F
  • 48°F
Showers
Showers
  • Precip. probability: 36%
  • Precipitation: 0"
  • Wind: 19mphSSE 158°
  • Humidity: 70%
  • UV index: 2
  • Sunrise: 8:12 am CDT
  • Sunset: 6:41 pm CDT
  • ▼
  • Saturday
  • Oct 24, 2026
  • 54°F
  • 32°F
AM Showers
AM Showers
  • Precip. probability: 37%
  • Precipitation: 0.28"
  • Wind: 17mphWNW 290°
  • Humidity: 62%
  • UV index: 2
  • Sunrise: 8:14 am CDT
  • Sunset: 6:40 pm CDT
  • ▼
  • Sunday
  • Oct 25, 2026
  • 52°F
  • 36°F
Partly Cloudy
Partly Cloudy
  • Precip. probability: 9%
  • Precipitation: 0.04"
  • Wind: 11mphNNW 341°
  • Humidity: 60%
  • UV index: 2
  • Sunrise: 8:15 am CDT
  • Sunset: 6:38 pm CDT
  • ▼
  • Monday
  • Oct 26, 2026
  • 52°F
  • 37°F
Partly Cloudy
Partly Cloudy
  • Precip. probability: 11%
  • Precipitation: 0"
  • Wind: 12mphESE 112°
  • Humidity: 74%
  • UV index: 2
  • Sunrise: 8:17 am CDT
  • Sunset: 6:36 pm CDT
  • ▼
  • Tuesday
  • Oct 27, 2026
  • 50°F
  • 36°F
Partly Cloudy
Partly Cloudy
  • Precip. probability: 24%
  • Precipitation: 0"
  • Wind: 12mphESE 122°
  • Humidity: 73%
  • UV index: 2
  • Sunrise: 8:18 am CDT
  • Sunset: 6:35 pm CDT
  • ▼
For the next ten days, a combination of dull, mostly clear and rainy weather is forecasted.
With a probability of 37%, rainfall is anticipated only on Saturday. The precipitation will be light at 0.28".
Substantial differences in temperature are forecasted throughout the forecast window. The temperature is expected to swing from 50°F up to 73.4°F, while there will be also a marked difference in overnight low temperatures, as the overnight lows will vary from 32°F to 55.4°F.
Expect the warmest day on Thursday, with temperatures peaking at 73.4°F; the coldest day will be next Tuesday, with a maximum of 50°F.
Updated: Oct 18, 2026 @ 06:43:46 UTC
Published by: Weather U.S. | About Us
Data Sources | weather.com | Weather
Weather Forecasting & Climate

Frequently asked questions

Today, expect a partly sunny afternoon with variable cloud cover.

Today, the maximum temperature will be 66.2°F, while the minimum temperature will be 32°F.
The maximum temperature today will be uncommonly higher than the average highest temperature of 53.8°F in October. Today, the lowest temperature will be moderately lower than the average low temperature.

On Sunday, in Arnold, sunrise will be at 8:05 am and sunset at 6:50 pm (CDT).

In Arnold, today, there will be 10h and 45min of daylight.