UTC Offset
UTC-04:00
Acton, United States Snapshot 2026
Where is Acton?
Acton, United States
- Continent
- Americas
- Country
- United States
- City
- Acton
- Population
- 20.9K
- Elevation
- 81 m
- Coordinates
- 42.49°, -71.43°
Acton is a city in United States with a population of approximately 20.9K. Average temperatures range from -5°C (23°F) in January to 29°C (83°F) in July. The best time to visit is June, July, August, September.
Time in Acton right now
Open full time & time zone page 13:44 44
Monday, June 15, 2026
IANA time zone
America/New_York
Daylight saving
DST in effect
EST / EDT
Next DST change
November 1
backward -1h
Live weather in Acton
Daylight in Acton today
View full sunrise & sunset page Sunrise
Sunset
Day length
15h 17m
Climate normals for Acton
Long-term monthly averages based on historical data.
January
Poor 
February
Poor March
Poor April
Fair May
Good June best
Excellent July best
Excellent August best
Excellent September best
Excellent October
Good November
Poor December
Poor | Month | Temp | Feels Like | Rain | Sun | Humidity | UV | Status | Details |
|---|---|---|---|---|---|---|---|---|
| January | 2°C / -5°C | -2°C / -10°C | 9days (87 mm) Wet | 5.9h Fair | 67% Muggy | 2.2 Moderate | Poor | View Details |
| February | 4°C / -5°C | 0°C / -9°C | 9days (79 mm) Wet | 6.8h Fair | 68% Muggy | 3.3 Moderate | Poor | View Details |
| March | 8°C / -1°C | 4°C / -6°C | 10days (98 mm) Wet | 7.8h Good | 66% Muggy | 4.2 Moderate | Poor | View Details |
| April | 14°C / 4°C | 11°C / 1°C | 12days (103 mm) Wet | 8.4h Good | 67% Muggy | 5.2 High | Fair | View Details |
| May | 20°C / 10°C | 19°C / 8°C | 11days (93 mm) Wet | 9.5h Good | 71% Muggy | 6.1 High | Good | View Details |
| June best | 25°C / 15°C | 26°C / 15°C | 11days (78 mm) Wet | 10.8h Excellent | 71% Muggy | 6.7 High | Excellent | View Details |
| July best | 29°C / 19°C | 31°C / 20°C | 12days (102 mm) Wet | 11.1h Excellent | 72% Muggy | 6.9 High | Excellent | View Details |
| August best | 28°C / 18°C | 29°C / 19°C | 11days (85 mm) Wet | 10.6h Excellent | 71% Muggy | 6.4 High | Excellent | View Details |
| September best | 23°C / 15°C | 23°C / 14°C | 8days (85 mm) Wet | 8.5h Good | 74% Muggy | 5.1 High | Excellent | View Details |
| October | 17°C / 9°C | 16°C / 7°C | 10days (102 mm) Wet | 6.9h Fair | 75% Muggy | 3.7 Moderate | Good | View Details |
| November | 10°C / 2°C | 7°C / -2°C | 9days (78 mm) Wet | 6.5h Fair | 71% Muggy | 2.6 Moderate | Poor | View Details |
| December | 4°C / -3°C | 0°C / -7°C | 10days (118 mm) Wet | 5.5h Fair | 71% Muggy | 1.9 Low | Poor | View Details |
Monthly Temperatures
HighLow
Line chart showing monthly temperatures. Jan: 2°C / -5°C . Feb: 4°C / -5°C . Mar: 8°C / -1°C . Apr: 14°C / 4°C . May: 20°C / 10°C . Jun: 25°C / 15°C . Jul: 29°C / 19°C . Aug: 28°C / 18°C . Sep: 23°C / 15°C . Oct: 17°C / 9°C . Nov: 10°C / 2°C . Dec: 4°C / -3°C .
Monthly Rainfall
Rainfall
Bar chart showing monthly rainfall. Jan: 87 mm. Feb: 79 mm. Mar: 98 mm. Apr: 103 mm. May: 93 mm. Jun: 78 mm. Jul: 102 mm. Aug: 85 mm. Sep: 85 mm. Oct: 102 mm. Nov: 78 mm. Dec: 118 mm.
Monthly Humidity
Humidity
Line chart showing monthly humidity. Jan: 67%. Feb: 68%. Mar: 66%. Apr: 67%. May: 71%. Jun: 71%. Jul: 72%. Aug: 71%. Sep: 74%. Oct: 75%. Nov: 71%. Dec: 71%.
Monthly Wind Speed
Wind SpeedGusts
Bar chart showing monthly wind speed. Jan: 18 km/h . Feb: 18 km/h . Mar: 19 km/h . Apr: 18 km/h . May: 16 km/h . Jun: 15 km/h . Jul: 14 km/h . Aug: 14 km/h . Sep: 14 km/h . Oct: 16 km/h . Nov: 18 km/h . Dec: 17 km/h .
UV Index
UV Index
Bar chart showing monthly UV index. Jan: UV 2. Feb: UV 3. Mar: UV 4. Apr: UV 5. May: UV 6. Jun: UV 7. Jul: UV 7. Aug: UV 6. Sep: UV 5. Oct: UV 4. Nov: UV 3. Dec: UV 2.
Frequently Asked Questions
Acton has a population of approximately 20.9K.
The best months to visit Acton are June, July, August, September, when temperatures are pleasant and rainfall is lower.
Acton receives approximately 1108mm of rainfall annually across 122 rainy days.
Acton is located in United States, in the Americas region.
Acton sits at an elevation of 81 m (266 ft) above sea level.