Now

64°

27%

11 mph

02:00

64°

27%

11 mph

03:00

64°

28%

16 mph

04:00

64°

0.04 in

10 mph

05:00

64°

0.06 in

5 mph

06:00

64°

0.09 in

5 mph

07:00

62°

0.09 in

6 mph

08:00

64°

0.09 in

5 mph

09:00

66°

0.09 in

6 mph

10:00

69°

0.09 in

9 mph

11:00

67°

0.09 in

8 mph

12:00

72°

0.09 in

11 mph

13:00

70°

14%

11 mph

14:00

73°

24%

11 mph

15:00

74°

12%

12 mph

16:00

75°

10%

12 mph

17:00

73°

13 mph

18:00

71°

11 mph

19:00

68°

11 mph

20:00

66°

13%

9 mph

21:00

63°

12%

8 mph

22:00

63°

11%

7 mph

23:00

61°

11%

8 mph

00:00

61°

11%

7 mph

10-day forecast

Updated 1:43 AM

Wed · Today · 19 Aug Mostly cloudy

75° 61° 0.71 in

Thu · Tomorrow · 20 Aug Sunny

74° 57° 2%

Friday · 21 Aug Mostly cloudy

73° 56° 7%

Saturday · 22 Aug Mostly cloudy

79° 62° 0.28 in

Sunday · 23 Aug Sunny

70° 55° 10%

Monday · 24 Aug Sunny

70° 53° 8%

Tuesday · 25 Aug Sunny

72° 53° 6%

Wednesday · 26 Aug Sunny

72° 57° 4%

Thursday · 27 Aug Sunny

70° 55° 2%

Friday · 28 Aug Sunny

72° 53° 5%

Details & indices

Wind

11 mph SW

Gusts 28 mph

Humidity

86%

Dew point 60°

Pressure

29.85 inHg

Falling

UV index

7 — High

High today

Air Quality

Good

AQI 33 · US EPA

Allergy

Low

Mugwort

Visibility

6 mi

Clear view

Allergy — Acton

🌿 Conditions right now

View all →

Birch

None

Grass

Low

Oak

None

Alder

None

Hazel

None

Mugwort

Moderate

Ragweed

None

Sun & moon

Sunrise6:29 AM

Sunset8:18 PM

Length of day13h 49m

Moonrise2:22 PM

Moonset11:16 PM

Moon phase🌓 First Quarter · 41%

Next full moonAug 28 Sturgeon Moon

Latitude43.6297°N

Longitude-80.0415°E

Water temps nearby

View all →

No beaches within 50 miles

🌤️No rain expected in the next 90 minutes

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

Poor

Fire up the grill

Running

Poor

Lace up outside

Patio

Fair

Dinner outdoors

Nearby places in {{REGION}}

69°

67°

Data sources · Wednesday, August 19

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: 1:43 AM

Weather in Acton

The 10-day span for Acton runs from a high near 79° on Saturday down to 53° overnight on Monday. Models drop roughly 1.0 in of precipitation across the stretch — watch Wednesday (80%). Wind is the one to watch: gusts to 32 mph around Wednesday. No watches or warnings are active for the area right now. Right now Acton is about 22° cooler than nearby Detroit. 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

Acton, ON Weather

Weather map — Acton

Today · Wed 8/19

Overnight · Wed 8/19

Tomorrow · Thu 8/20

7-day trend

10-day forecast

Details & indices

🌿 Conditions right now

Sun & moon

Water temps nearby

Daily planner