New York, NY 67° Los Angeles, CA 60° Chicago, IL 75° Houston, TX 79° Miami, FL 76° Phoenix, AZ 82° Seattle, WA 56° Denver, CO 70° Toronto, ON 68° Vancouver, BC 58°
WeatherLiveOntarioActon

Acton, ON Weather

Current WeatherActon · 6:57 AM EDT
84° | 69°
69°F
Feels like 74°
Fog
WindS 3 mph · Gusts 3 mph
Precip91% · 0.50 in
Humidity100% · Dew point 69°
UV index6 Moderate
Air Quality29 Good
Pressure29.97 inHg
Visibility0 mi
Sunrise / Sunset6:45 AM · 7:54 PM · 13h 9m

Weather map — Acton

Full radar →
Now
69°
43%
3 mph
07:00
69°
52%
4 mph
08:00
70°
46%
5 mph
09:00
72°
43%
7 mph
10:00
76°
38%
9 mph
11:00
80°
34%
7 mph
12:00
84°
32%
9 mph
13:00
81°
14%
9 mph
14:00
81°
13%
10 mph
15:00
81°
0.06 in
8 mph
16:00
79°
43%
7 mph
17:00
79°
22%
3 mph
18:00
78°
0.08 in
1 mph
19:00
76°
0.18 in
7 mph
20:00
74°
49%
8 mph
21:00
74°
0.09 in
6 mph
22:00
73°
0.03 in
4 mph
23:00
73°
44%
4 mph
00:00
72°
37%
6 mph
01:00
71°
19%
6 mph
02:00
71°
15%
7 mph
03:00
70°
19%
7 mph
04:00
69°
20%
6 mph
05:00
69°
19%
6 mph

Today · Wed 9/2

High 84°
91% / 0.50 in

Fog. Winds W at 10 mph.

Overnight · Wed 9/2

Low 69°
— / –

Fog.

Tomorrow · Thu 9/3

78° | 67°
74% / 0.15 in

Fog. Winds NW at 9 mph.

7-day trend

Acton · temperature + precipitation

10-day forecast

Updated 6:57 AM

Details & indices

Wind
3 mph S
Gusts 3 mph
Humidity
100%
Dew point 69°
Pressure
29.97 inHg
Rising
UV index
6 — Moderate
High today
Air Quality
Good
AQI 29 · US EPA
Allergy
Low
Ragweed
Visibility
0 mi
Reduced
Allergy — Acton

🌿 Conditions right now

View all →
Birch
None
Grass
Low
Oak
None
Alder
None
Hazel
None
Mugwort
Low
Ragweed
Low

Sun & moon

Sunrise6:45 AM
Sunset7:54 PM
Length of day13h 9m
Moonrise10:14 PM
Moonset1:05 PM
Next full moonSep 26 Harvest Moon
Latitude43.6297°N
Longitude-80.0415°E

Water temps nearby

View all →
No beaches within 50 miles
🌦️Dry now — rain moving in around 7:45 AM (48 min)
Now+30+60+90 min
Minute-by-minute precip · HRRR nowcast

Daily planner

computed from today's forecast
Laundry day
Poor
Line-drying weather
Grilling
Fair
Fire up the grill
Running
Poor
Lace up outside
Patio
Fair
Dinner outdoors
Nearby places in {{REGION}}
Toronto
Fog
68°
Ottawa
Mostly cloudy
61°
Mississauga
Fog
68°
Brampton
Fog
68°
Hamilton
Mostly cloudy
68°
London
Partly cloudy
74°
Data sources · Wednesday, September 2
Where the Acton forecast comes from
This page blends NOAA/NWS model guidance with global ensembles for the 10-day outlook, air quality and alerts. Data refreshes every hour, current conditions every 15 minutes. Coordinates: 43.6297°N, -80.0415°.
NBM + global weather models
Updated: 6:57 AM
Weather in Acton
The 10-day span for Acton runs from a high near 84° on Wednesday down to 45° overnight on Tuesday. Models drop roughly 2.2 in of precipitation across the stretch — watch Wednesday (91%). Wind is the one to watch: gusts to 35 mph around Friday. Heads up: 2 NWS alerts are active right now, including a thunderstorm — details on the alerts tab. Right now Acton is about 6° cooler than nearby Cleveland. Longer view: four full seasons with serious winter and real summer heat.
Acton, ON · Elev 1,145 ft · 43.63°N, 80.04°W · Ontario · Forecast computed for these exact coordinates
Powered by NWS/NOAA guidance, multi-model forecasts and official environmental feeds · NOAA/NWS · EPA AirNow · MET Norway · global models
Updated: 6:57 AM