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Bethalto, United States Snapshot 2026
Where is Bethalto?
Bethalto, United States
- Continent
- Americas
- Country
- United States
- City
- Bethalto
- Population
- 9.3K
- Elevation
- 160 m
- Coordinates
- 38.91°, -90.04°
Bethalto is a city in United States with a population of approximately 9.3K. Average temperatures range from -3°C (26°F) in January to 31°C (88°F) in July. The best time to visit is May, June, August, September, October. The city sits at an elevation of 160 m above sea level.
Time in Bethalto right now
Open full time & time zone page 14:22 22
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 Bethalto
Daylight in Bethalto today
View full sunrise & sunset page Sunrise
Sunset
Day length
14h 53m
Climate normals for Bethalto
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 best
Excellent September best
Excellent October best
Good November
Fair December
Poor | Month | Temp | Feels Like | Rain | Sun | Humidity | UV | Status | Details |
|---|---|---|---|---|---|---|---|---|
| January | 4°C / -3°C | 0°C / -8°C | 8days (71 mm) Wet | 5.3h Fair | 69% Muggy | 2.7 Moderate | Poor | View Details |
| February | 8°C / -2°C | 5°C / -6°C | 8days (67 mm) Wet | 6.7h Fair | 66% Muggy | 3.7 Moderate | Poor | View Details |
| March | 14°C / 4°C | 12°C / 0°C | 12days (118 mm) Wet | 7.5h Good | 64% Muggy | 5.1 High | Fair | View Details |
| April | 19°C / 9°C | 18°C / 6°C | 12days (129 mm) Wet | 8.8h Good | 63% Muggy | 5.7 High | Good | View Details |
| May best | 25°C / 15°C | 25°C / 14°C | 12days (129 mm) Wet | 9.7h Good | 68% Muggy | 6.8 High | Excellent | View Details |
| June best | 30°C / 20°C | 32°C / 22°C | 10days (95 mm) Wet | 11.8h Excellent | 65% Muggy | 7.3 Very High | Excellent | View Details |
| July | 31°C / 22°C | 35°C / 25°C | 12days (121 mm) Wet | 11.7h Excellent | 71% Muggy | 7.3 Very High | Fair | View Details |
| August best | 30°C / 21°C | 33°C / 23°C | 10days (105 mm) Wet | 10.8h Excellent | 71% Muggy | 6.8 High | Excellent | View Details |
| September best | 28°C / 18°C | 29°C / 19°C | 7days (75 mm) Good | 10h Excellent | 67% Muggy | 5.8 High | Excellent | View Details |
| October best | 21°C / 12°C | 19°C / 10°C | 9days (81 mm) Wet | 7.7h Good | 65% Muggy | 4.3 Moderate | Good | View Details |
| November | 13°C / 4°C | 10°C / 1°C | 8days (70 mm) Wet | 6.6h Fair | 68% Muggy | 3 Moderate | Fair | View Details |
| December | 8°C / 0°C | 4°C / -4°C | 8days (57 mm) Wet | 5.4h Fair | 70% Muggy | 2.3 Moderate | Poor | View Details |
Monthly Temperatures
HighLow
Line chart showing monthly temperatures. Jan: 4°C / -3°C . Feb: 8°C / -2°C . Mar: 14°C / 4°C . Apr: 19°C / 9°C . May: 25°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 / 4°C . Dec: 8°C / 0°C .
Monthly Rainfall
Rainfall
Bar chart showing monthly rainfall. Jan: 71 mm. Feb: 67 mm. Mar: 118 mm. Apr: 129 mm. May: 129 mm. Jun: 95 mm. Jul: 121 mm. Aug: 105 mm. Sep: 75 mm. Oct: 81 mm. Nov: 70 mm. Dec: 57 mm.
Monthly Humidity
Humidity
Line chart showing monthly humidity. Jan: 69%. Feb: 66%. Mar: 64%. Apr: 63%. May: 68%. Jun: 65%. Jul: 71%. Aug: 71%. Sep: 67%. Oct: 65%. Nov: 68%. Dec: 70%.
Monthly Wind Speed
Wind SpeedGusts
Bar chart showing monthly wind speed. Jan: 18 km/h . Feb: 19 km/h . Mar: 21 km/h . Apr: 21 km/h . May: 18 km/h . Jun: 15 km/h . Jul: 13 km/h . Aug: 13 km/h . Sep: 14 km/h . Oct: 18 km/h . Nov: 18 km/h . Dec: 18 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
Bethalto has a population of approximately 9.3K.
The best months to visit Bethalto are May, June, August, September, October, when temperatures are pleasant and rainfall is lower.
Bethalto receives approximately 1118mm of rainfall annually across 116 rainy days.
Bethalto is located in United States, in the Americas region.
Bethalto sits at an elevation of 160 m (525 ft) above sea level.