Live Weather & Forecast
Weather in Arnold
Missouri, United States · Real-time conditions & 3-day outlook
26°C
Feels like 27°C
78°F / Feels 80°F
Sunny
Arnold, Missouri
🌞 Daytime
Updated: 2026-04-12 11:30
Humidity
47%
Wind
26.6 km/h SSW
Wind Gust
33.3 km/h
Pressure
1018 mb
Visibility
16 km
UV Index
5.6
(Moderate)
Precipitation
0 mm
Cloud Cover
0%
Dew Point
17.1°C
Wind Degree
198°
Air Quality Index
US EPA: Good
UK DEFRA: Low (1)
CO
158.9 μg/m³
NO₂
2.9 μg/m³
O₃
113 μg/m³
SO₂
2 μg/m³
PM 2.5
5.9 μg/m³
PM 10
6.5 μg/m³
Today's Hourly Forecast
24-hour breakdown for Arnold, Missouri
12 AM
17°
Clear
1 AM
16°
Clear
2 AM
16°
Clear
3 AM
16°
Clear
4 AM
15°
Clear
5 AM
15°
Clear
6 AM
15°
Clear
7 AM
16°
Sunny
8 AM
18°
Sunny
9 AM
20°
Sunny
10 AM
23°
Sunny
11 AM
26°
Sunny
12 PM
27°
Sunny
1 PM
29°
Sunny
2 PM
29°
Sunny
3 PM
29°
Sunny
4 PM
28°
Sunny
5 PM
27°
Overcast
6 PM
25°
Cloudy
7 PM
24°
Overcast
8 PM
23°
Overcast
9 PM
23°
Cloudy
10 PM
22°
Overcast
11 PM
20°
Overcast
3-Day Forecast
Daily overview for Arnold, Missouri
Today
Sunny
30°
/
15°
🌧️ 0% chance of rain
💧 Avg. humidity: 62%
💨 Max wind: 30.2 km/h
🌧️ Total precip: 0 mm
☀️ UV Index: 1.6
🌅 Sunrise: 06:29 AM
🌇 Sunset: 07:35 PM
🌙 Waning Crescent
🌑 Moon: 33% lit
Mon, Apr 13
Thundery outbreaks in nearby
30°
/
18°
🌧️ 0% chance of rain
💧 Avg. humidity: 73%
💨 Max wind: 29.5 km/h
🌧️ Total precip: 0 mm
☀️ UV Index: 2
🌅 Sunrise: 06:28 AM
🌇 Sunset: 07:36 PM
🌙 Waning Crescent
🌑 Moon: 23% lit
Tue, Apr 14
Thundery outbreaks in nearby
27°
/
20°
🌧️ 0% chance of rain
💧 Avg. humidity: 75%
💨 Max wind: 29.9 km/h
🌧️ Total precip: 0 mm
☀️ UV Index: 2
🌅 Sunrise: 06:26 AM
🌇 Sunset: 07:37 PM
🌙 Waning Crescent
🌑 Moon: 15% lit
Best Time to Visit Arnold
Plan your trip to Arnold, United States around the most favorable weather conditions.
Peak Season
June – September
Warm, dry summers — ideal for outdoor activities.
Shoulder Season
April – May, October
Fewer crowds, moderate prices, mild weather.
Off Season
November – March
Cooler temperatures; some regions may experience rain or snow.
Frequently Asked Questions
What is the current weather in Arnold?
Current conditions in Arnold: Sunny, temperature 26°C, humidity 47%.
What is the best time to visit Arnold?
The best time to visit Arnold is typically June – September. Warm, dry summers — ideal for outdoor activities.
What is the climate like in Arnold?
Arnold is located at approximately 38.4° latitude. It has a temperate climate with warm summers and cold winters.
Does it rain a lot in Arnold?
The wettest period in Arnold is typically during November – March. Cooler temperatures; some regions may experience rain or snow.
What should I pack for a trip to Arnold?
For visits to Arnold during June – September: light clothing and sun protection. For November – March: layers and a waterproof jacket are recommended.
What country is Arnold in?
Arnold is located in United States, in the state of Missouri.
What are the public holidays in Arnold in 2026?
View the 2026 public holidays for Arnold on our Holidays page.
What are the GPS coordinates used for the weather forecast in Arnold?
The weather forecast for Arnold uses coordinates 38.4227, -90.3758.