Weather forecast for todayArnold, MO

Weather forecast for today

Current condition 10:08 am CDT

  • 54°F
  • Feels like:
    52°F
Sunny
Sunny
  • Precipitation: 0"
  • Wind: 5mphSSE 150°
  • Humidity: 59%
  • Dewpoint: 39°F
  • Pressure: 30.5"Hg
  • Visibility: 9mi
  • UV index: 2
  • ▼
In Arnold, at the moment, the sun’s rays are illuminating everything under a clear sky.
The temperature is a cool 53.6°F, with the apparent temperature closely matching at 51.8°F. The current temperature is relatively far from the maximum of 66.2°F anticipated for today.

Sunday Oct 18, 2026

  • 66°F
  • 37°F
Sunny
Sunny
  • Precip. probability: 1%
  • Precipitation: 0"
  • Wind: 6mphSSE 155°
  • Humidity: 45%
  • UV index: 5
  • Sunrise: 7:13 am CDT
  • Sunset: 6:19 pm CDT
  • ▼
Today, on Sunday, October 18, skies will stay clear and sunny.
Temperature fluctuations will be substantial, ranging from a peak of a breezy 66.2°F to a low of an icy 37.4°F.
The predicted daily high is projected to match October's typical maximum of 66.4°F.
Sunrise was at 7:13 am and sunset will be at 6:19 pm; the daylight will last for 11h and 6min.

Hourly overview

Hourly temperatures

Warmest period: 3 pm - 5 pm 64°C.
Coldest hour: 1 am 43°C.

Chance of precipitation

Highest chance: 1 am 5%.

Hourly weather forecast

  • 11 am
  • 57°F
  • Feels like:
    55°F
Sunny
Sunny
  • Precip. probability: 1%
  • Precipitation: 0"
  • Wind: 6mphSSE 166°
  • Humidity: 50%
  • Pressure: 30.47"Hg
  • Visibility: 10mi
  • UV index: 3
  • ▼
  • 12 pm
  • 61°F
  • Feels like:
    61°F
Sunny
Sunny
  • Precip. probability: 0%
  • Precipitation: 0"
  • Wind: 6mphSSE 164°
  • Humidity: 44%
  • Pressure: 30.45"Hg
  • Visibility: 10mi
  • UV index: 4
  • ▼
  • 1 pm
  • 63°F
  • Feels like:
    63°F
Sunny
Sunny
  • Precip. probability: 0%
  • Precipitation: 0"
  • Wind: 6mphSSE 164°
  • Humidity: 40%
  • Pressure: 30.42"Hg
  • Visibility: 10mi
  • UV index: 5
  • ▼
  • 2 pm
  • 63°F
  • Feels like:
    63°F
Sunny
Sunny
  • Precip. probability: 0%
  • Precipitation: 0"
  • Wind: 6mphSSE 158°
  • Humidity: 39%
  • Pressure: 30.39"Hg
  • Visibility: 10mi
  • UV index: 4
  • ▼
  • 3 pm
  • 64°F
  • Feels like:
    64°F
Sunny
Sunny
  • Precip. probability: 0%
  • Precipitation: 0"
  • Wind: 6mphSSE 156°
  • Humidity: 38%
  • Pressure: 30.36"Hg
  • Visibility: 10mi
  • UV index: 3
  • ▼
  • 4 pm
  • 64°F
  • Feels like:
    64°F
Sunny
Sunny
  • Precip. probability: 0%
  • Precipitation: 0"
  • Wind: 6mphSSE 153°
  • Humidity: 37%
  • Pressure: 30.36"Hg
  • Visibility: 10mi
  • UV index: 1
  • ▼
  • 5 pm
  • 64°F
  • Feels like:
    64°F
Sunny
Sunny
  • Precip. probability: 0%
  • Precipitation: 0"
  • Wind: 6mphSSE 147°
  • Humidity: 39%
  • Pressure: 30.33"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
  • 6 pm
  • 61°F
  • Feels like:
    61°F
Sunny
Sunny
  • Precip. probability: 0%
  • Precipitation: 0"
  • Wind: 5mphSE 135°
  • Humidity: 47%
  • Pressure: 30.33"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
Sunset: 6:19 pm
  • 7 pm
  • 55°F
  • Feels like:
    55°F
Clear
Clear
  • Precip. probability: 0%
  • Precipitation: 0"
  • Wind: 4mphSE 132°
  • Humidity: 59%
  • Pressure: 30.33"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
  • 8 pm
  • 52°F
  • Feels like:
    52°F
Clear
Clear
  • Precip. probability: 1%
  • Precipitation: 0"
  • Wind: 3mphSE 138°
  • Humidity: 68%
  • Pressure: 30.36"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
  • 9 pm
  • 50°F
  • Feels like:
    50°F
Clear
Clear
  • Precip. probability: 1%
  • Precipitation: 0"
  • Wind: 2mphSE 146°
  • Humidity: 75%
  • Pressure: 30.36"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
  • 10 pm
  • 46°F
  • Feels like:
    46°F
Clear
Clear
  • Precip. probability: 2%
  • Precipitation: 0"
  • Wind: 2mphSSE 148°
  • Humidity: 82%
  • Pressure: 30.36"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
  • 11 pm
  • 46°F
  • Feels like:
    46°F
Clear
Clear
  • Precip. probability: 3%
  • Precipitation: 0"
  • Wind: 2mphS 169°
  • Humidity: 87%
  • Pressure: 30.36"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
Today, mainly sunny weather and a cloudless sky are anticipated.
The temperature will vary between the lowest temperature of 46.4°F and the highest temperature of 64.4°F. The warmest part of the day will be from 3 pm to 5 pm.
Today, the temperature is forecasted to be resembling the usual maximum for October. The minimum temperature will be more similar to November's average low of 37.9°F than October's typical 49.1°F.
Updated: Oct 18, 2026 @ 15:08:23 UTC
Published by: Weather U.S. | About Us
Data Sources | weather.com | Weather
Weather Forecasting & Climate

Frequently asked questions

The current temperature (10:08 am CDT) is 53.6°F.

Today, in Arnold, the weather remains calm, bright, and sunny.

Today, the highest temperature will be 66.2°F, while the lowest temperature will be 37.4°F.
The highest temperature today will be in line with the average maximum temperature in October. The lowest temperature will be notably lower than the average low of 49.1°F.

On Sunday, in Arnold, sunrise was at 7:13 am and sunset will be at 6:19 pm (CDT).

In Arnold, today, there will be 11h and 6min of daylight.