UTC Offset
UTC-05:00
Arnold, United States Snapshot 2026
Where is Arnold?
Arnold, United States
- Continent
- Americas
- Country
- United States
- City
- Arnold
- Population
- 21.4K
- Elevation
- 184 m
- Coordinates
- 38.43°, -90.38°
Arnold is a city in United States with a population of approximately 21.4K. Average temperatures range from -3°C (27°F) in January to 31°C (89°F) in July. The best time to visit is May, June, September, October. The city sits at an elevation of 184 m above sea level.
Time in Arnold right now
Open full time & time zone page 13:44 44
Monday, June 15, 2026
IANA time zone
America/Chicago
Daylight saving
DST in effect
CST / CDT
Next DST change
November 1
backward -1h
Live weather in Arnold
Daylight in Arnold today
View full sunrise & sunset page Sunrise
Sunset
Day length
14h 50m
Climate normals for Arnold
Long-term monthly averages based on historical data.
January
Poor 
February
Poor March
Fair April
Good May best
Excellent June best
Excellent July
Fair August
Good September best
Excellent October best
Good November
Fair December
Poor | Month | Temp | Feels Like | Rain | Sun | Humidity | UV | Status | Details |
|---|---|---|---|---|---|---|---|---|
| January | 5°C / -3°C | 1°C / -7°C | 8days (75 mm) Wet | 5.7h Fair | 68% Muggy | 2.7 Moderate | Poor | View Details |
| February | 9°C / -1°C | 6°C / -5°C | 8days (69 mm) Wet | 7h Good | 66% Muggy | 3.7 Moderate | Poor | View Details |
| March | 15°C / 5°C | 12°C / 1°C | 12days (118 mm) Wet | 7.6h Good | 65% Muggy | 5.2 High | Fair | View Details |
| April | 20°C / 9°C | 18°C / 6°C | 12days (129 mm) Wet | 9h Good | 65% Muggy | 5.8 High | Good | View Details |
| May best | 24°C / 15°C | 25°C / 14°C | 14days (129 mm) Wet | 10h Excellent | 72% Muggy | 7 High | Excellent | View Details |
| June best | 30°C / 20°C | 33°C / 22°C | 10days (89 mm) Wet | 12.1h Excellent | 68% Muggy | 7.4 Very High | Excellent | View Details |
| July | 31°C / 22°C | 35°C / 25°C | 13days (107 mm) Wet | 12h Excellent | 72% Muggy | 7.4 Very High | Fair | View Details |
| August | 30°C / 21°C | 33°C / 23°C | 11days (117 mm) Wet | 11h Excellent | 72% Muggy | 6.8 High | Good | View Details |
| September best | 28°C / 18°C | 29°C / 19°C | 7days (74 mm) Good | 10.3h Excellent | 68% Muggy | 5.8 High | Excellent | View Details |
| October best | 21°C / 12°C | 20°C / 10°C | 9days (83 mm) Wet | 7.9h Good | 66% Muggy | 4.4 Moderate | Good | View Details |
| November | 13°C / 5°C | 11°C / 1°C | 8days (70 mm) Wet | 6.9h Fair | 68% Muggy | 3 Moderate | Fair | View Details |
| December | 9°C / 1°C | 5°C / -4°C | 8days (59 mm) Wet | 5.8h Fair | 70% Muggy | 2.3 Moderate | Poor | View Details |
Monthly Temperatures
HighLow
Line chart showing monthly temperatures. Jan: 5°C / -3°C . Feb: 9°C / -1°C . Mar: 15°C / 5°C . Apr: 20°C / 9°C . May: 24°C / 15°C . Jun: 30°C / 20°C . Jul: 31°C / 22°C . Aug: 30°C / 21°C . Sep: 28°C / 18°C . Oct: 21°C / 12°C . Nov: 13°C / 5°C . Dec: 9°C / 1°C .
Monthly Rainfall
Rainfall
Bar chart showing monthly rainfall. Jan: 75 mm. Feb: 69 mm. Mar: 118 mm. Apr: 129 mm. May: 129 mm. Jun: 89 mm. Jul: 107 mm. Aug: 117 mm. Sep: 74 mm. Oct: 83 mm. Nov: 70 mm. Dec: 59 mm.
Monthly Humidity
Humidity
Line chart showing monthly humidity. Jan: 68%. Feb: 66%. Mar: 65%. Apr: 65%. May: 72%. Jun: 68%. Jul: 72%. Aug: 72%. Sep: 68%. Oct: 66%. Nov: 68%. Dec: 70%.
Monthly Wind Speed
Wind SpeedGusts
Bar chart showing monthly wind speed. Jan: 17 km/h . Feb: 18 km/h . Mar: 19 km/h . Apr: 19 km/h . May: 16 km/h . Jun: 14 km/h . Jul: 12 km/h . Aug: 12 km/h . Sep: 13 km/h . Oct: 16 km/h . Nov: 17 km/h . Dec: 17 km/h .
UV Index
UV Index
Bar chart showing monthly UV index. Jan: UV 3. Feb: UV 4. Mar: UV 5. Apr: UV 6. May: UV 7. Jun: UV 7. Jul: UV 7. Aug: UV 7. Sep: UV 6. Oct: UV 4. Nov: UV 3. Dec: UV 2.
Frequently Asked Questions
Arnold has a population of approximately 21.4K.
The best months to visit Arnold are May, June, September, October, when temperatures are pleasant and rainfall is lower.
Arnold receives approximately 1119mm of rainfall annually across 120 rainy days.
Arnold is located in United States, in the Americas region.
Arnold sits at an elevation of 184 m (604 ft) above sea level.