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Acton ON Weather - Scattered Showers
Scattered Showers
54°F
Updated 6:53 am
Feels Like 49°F
Humidity 69%
Wind NE 8 mph
Barometer  29.94 in
Visibility 6 mi
Acton ON Weather - Scattered Showers
Scattered Showers
12°C
Updated 6:53 am
Feels Like 10°C
Humidity 69%
Wind NE 13 km/h
Barometer  101.4 kPa
Visibility 10 km
Acton, ON Weather and Current Conditionsacton on weather forecast

Acton, ON Weather Forecast

Acton Ontario WeatherActon, Ontario Weather Weather Forecast
14 Day API Acton, ON Weather Forecast. Note: Our 7 day Acton, Ontario weather forecast is our most reliable, and specific forecast. This model should only be used as a probable scenario. Forecasting more than 7 days ahead is challenging.
Acton, ON Weather Forecast Dated: 653 AM Sun Sep 20 2026
Expect a cool pattern with a mix of sun and clouds and mostly dry weather over the coming period. moderate humidity and no major pressure swings will dominate.

Sunday, September 20, 2026

Mid-Morning
Acton Weather - 2026-09-20 - Morning - Light Rain
10°C 50°F
Light Rain
Mid-Afternoon
Acton Weather - 2026-09-20 - Afternoon - Overcast
14°C 58°F
Overcast
Early-Evening
Acton Weather - 2026-09-20 - Evening - Overcast
14°C 57°F
Overcast
Refreshing around 14°C 58°F, early showers breaking for a drier afternoon, with lower humidity and steady pressure. Winds turning from the NE to the NNE at 11 km/h 7 mph.

Monday, September 21, 2026

Mid-Morning
Acton Weather - 2026-09-21 - Morning - Overcast
7°C 45°F
Overcast
Mid-Afternoon
Acton Weather - 2026-09-21 - Afternoon - Overcast
13°C 56°F
Overcast
Early-Evening
Acton Weather - 2026-09-21 - Evening - Overcast
11°C 52°F
Overcast
Cool and brisk at 13°C 56°F, overcast throughout the day, with lower humidity and steady pressure. Winds blowing from the ENE at 22 km/h 13 mph. Gusts up to 35 km/h 22 mph.

Tuesday, September 22, 2026

Mid-Morning
Acton Weather - 2026-09-22 - Morning - Cloudy
8°C 46°F
Cloudy
Mid-Afternoon
Acton Weather - 2026-09-22 - Afternoon - Cloudy
12°C 54°F
Cloudy
Early-Evening
Acton Weather - 2026-09-22 - Evening - Sunny
12°C 54°F
Sunny
Chilly near 12°C 54°F, overcast through the afternoon, turning cloudy this evening, with increasing humidity and steady pressure. Winds moving from the ENE to the E at 26 km/h 17 mph. Gusts up to 42 km/h 27 mph.

Wednesday, September 23, 2026

Mid-Morning
Acton Weather - 2026-09-23 - Morning - Sunny
12°C 53°F
Sunny
Mid-Afternoon
Acton Weather - 2026-09-23 - Afternoon - Scattered Showers
13°C 56°F
Scattered Showers
Early-Evening
Acton Weather - 2026-09-23 - Evening - Scattered Showers
12°C 54°F
Scattered Showers
Crisp with a high near 13°C 56°F, periods of heavy rain and gusty conditions, with steady humidity and steady pressure. Winds swinging from the E to the ENE at 21 km/h 13 mph. Gusts up to 43 km/h 27 mph.

Thursday, September 24, 2026

Mid-Morning
Acton Weather - 2026-09-24 - Morning - Partly Cloudy
12°C 54°F
Partly Cloudy
Mid-Afternoon
Acton Weather - 2026-09-24 - Afternoon - Sunny
16°C 60°F
Sunny
Early-Evening
Acton Weather - 2026-09-24 - Evening - Sunny
13°C 55°F
Sunny
Refreshing around 16°C 60°F, partly cloudy in the morning, becoming sunny through the afternoon and evening, with steady humidity and steady pressure. Winds blowing from the E at 24 km/h 15 mph.

Friday, September 25, 2026

Mid-Morning
Acton Weather - 2026-09-25 - Morning - Sunny
12°C 53°F
Sunny
Mid-Afternoon
Acton Weather - 2026-09-25 - Afternoon - Sunny
19°C 67°F
Sunny
Early-Evening
Acton Weather - 2026-09-25 - Evening - Sunny
15°C 59°F
Sunny
Mildly cool near 19°C 67°F, sunny throughout the day, with lower humidity and steady pressure. Winds WSW at 16 km/h 10 mph.

Saturday, September 26, 2026

Mid-Morning
Acton Weather - 2026-09-26 - Morning - Partly Cloudy
14°C 56°F
Partly Cloudy
Mid-Afternoon
Acton Weather - 2026-09-26 - Afternoon - Partly Cloudy
20°C 67°F
Partly Cloudy
Early-Evening
Acton Weather - 2026-09-26 - Evening - Sunny
16°C 61°F
Sunny
Comfortable at 20°C 67°F, cloudy through the afternoon, turning sunny this evening, with lower humidity and steady pressure. Winds switching from the SW to the NNE at 11 km/h 7 mph.

Sunday, September 27, 2026

Mid-Morning
Acton Weather - 2026-09-27 - Morning - Sunny
14°C 56°F
Sunny
Mid-Afternoon
Acton Weather - 2026-09-27 - Afternoon - Sunny
20°C 67°F
Sunny
Early-Evening
Acton Weather - 2026-09-27 - Evening - Sunny
16°C 60°F
Sunny
Cool with a high near 20°C 67°F, sunny throughout the day, with steady humidity and steady pressure. Winds moving from the ENE to the SE at 12 km/h 8 mph.

Monday, September 28, 2026

Mid-Morning
Acton Weather - 2026-09-28 - Morning - Sunny
13°C 56°F
Sunny
Mid-Afternoon
Acton Weather - 2026-09-28 - Afternoon - Overcast
20°C 67°F
Overcast
Early-Evening
Acton Weather - 2026-09-28 - Evening - Overcast
17°C 64°F
Overcast
Refreshing around 20°C 67°F, sunny in the morning, partly cloudy in the afternoon, and overcast this evening, with lower humidity and barometric pressure falling. Winds swinging from the ESE to the SE at 21 km/h 13 mph. Gusts up to 40 km/h 25 mph.

Tuesday, September 29, 2026

Mid-Morning
Acton Weather - 2026-09-29 - Morning - Light Showers
9°C 49°F
Light Showers
Mid-Afternoon
Acton Weather - 2026-09-29 - Afternoon - Overcast
10°C 50°F
Overcast
Early-Evening
Acton Weather - 2026-09-29 - Evening - Cloudy
10°C 49°F
Cloudy
Cool and brisk at 10°C 50°F, early showers breaking for a drier afternoon, with lower humidity and barometric pressure rising. Winds out of the WSW at 23 km/h 15 mph.

Wednesday, September 30, 2026

Mid-Morning
Acton Weather - 2026-09-30 - Morning - Sunny
9°C 48°F
Sunny
Mid-Afternoon
Acton Weather - 2026-09-30 - Afternoon - Overcast
15°C 60°F
Overcast
Early-Evening
Acton Weather - 2026-09-30 - Evening - Overcast
14°C 58°F
Overcast
Comfortable at 15°C 60°F, sunny in the morning, partly cloudy in the afternoon, and overcast this evening, with lower humidity and barometric pressure falling. Winds blowing from the S at 24 km/h 15 mph. Gusts up to 35 km/h 22 mph.

Thursday, October 1, 2026

Mid-Morning
Acton Weather - 2026-10-01 - Morning - Scattered Showers
13°C 55°F
Scattered Showers
Mid-Afternoon
Acton Weather - 2026-10-01 - Afternoon - Sunny
16°C 61°F
Sunny
Early-Evening
Acton Weather - 2026-10-01 - Evening - Sunny
14°C 57°F
Sunny
Cool with a high near 16°C 61°F, locally heavy downpours at times, with lower humidity and steady pressure. Winds switching from the W to the SW at 16 km/h 10 mph.

Friday, October 2, 2026

Mid-Morning
Acton Weather - 2026-10-02 - Morning - Scattered Showers
12°C 53°F
Scattered Showers
Mid-Afternoon
Acton Weather - 2026-10-02 - Afternoon - Overcast
14°C 57°F
Overcast
Early-Evening
Acton Weather - 2026-10-02 - Evening - Scattered Showers
11°C 51°F
Scattered Showers
Brisk around 14°C 57°F, periods of heavy rain and gusty conditions, with steady humidity and steady pressure. Winds moving from the WSW to the WNW at 16 km/h 10 mph. Gusts up to 31 km/h 20 mph.

Saturday, October 3, 2026

Mid-Morning
Acton Weather - 2026-10-03 - Morning - Overcast
9°C 47°F
Overcast
Mid-Afternoon
Acton Weather - 2026-10-03 - Afternoon - Overcast
12°C 54°F
Overcast
Early-Evening
Acton Weather - 2026-10-03 - Evening - Sunny
11°C 52°F
Sunny
Cool and brisk at 12°C 54°F, overcast through the afternoon, turning partly cloudy this evening, with steady humidity and steady pressure. Winds swinging from the WNW to the NW at 15 km/h 10 mph.

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Weather by the Numbers

Sun, 20th
Acton ON Weather - Sunday, Sep 20, 2026 - Light Rain
Hi: 16°C 60°F
Lo: 10°C 50°F
Sunrise 07:06 AM
Sunset 07:22 PM
Wind NE 14 km/h9 mph
Dew Point 9°C48°F
uv Index 0
Barometric Pressure 101.6 kPa30 in
POP 70% *
Humidity 91%
Mon, 21st
Acton ON Weather - Monday, Sep 21, 2026 - Overcast
Hi: 14°C 56°F
Lo: 6°C 43°F
Sunrise 07:07 AM
Sunset 07:20 PM
Wind ENE 21 km/h13 mph
Dew Point 3°C37°F
uv Index 4
Barometric Pressure 102.4 kPa30.24 in
POP 13% *
Humidity 56%
Tue, 22nd
Acton ON Weather - Tuesday, Sep 22, 2026 - Overcast
Hi: 13°C 55°F
Lo: 7°C 44°F
Sunrise 07:08 AM
Sunset 07:18 PM
Wind ENE 29 km/h18 mph
Dew Point 6°C43°F
uv Index 4
Barometric Pressure 102.7 kPa30.33 in
POP 17% *
Humidity 68%
Wed, 23rd
Acton ON Weather - Wednesday, Sep 23, 2026 - Overcast
Hi: 15°C 59°F
Lo: 11°C 51°F
Sunrise 07:10 AM
Sunset 07:17 PM
Wind E 27 km/h17 mph
Dew Point 6°C42°F
uv Index 4
Barometric Pressure 102.8 kPa30.36 in
POP 16% *
Humidity 67%
Thu, 24th
Acton ON Weather - Thursday, Sep 24, 2026 - Sunny
Hi: 16°C 61°F
Lo: 8°C 46°F
Sunrise 07:11 AM
Sunset 07:15 PM
Wind E 24 km/h15 mph
Dew Point 6°C44°F
uv Index 5
Barometric Pressure 102.4 kPa30.24 in
POP 4% *
Humidity 57%
Fri, 25th
Acton ON Weather - Friday, Sep 25, 2026 - Sunny
Hi: 19°C 67°F
Lo: 9°C 48°F
Sunrise 07:12 AM
Sunset 07:13 PM
Wind SE 14 km/h9 mph
Dew Point 2°C35°F
uv Index 5
Barometric Pressure 102.1 kPa30.15 in
POP 1% *
Humidity 36%
Sat, 26th
Acton ON Weather - Saturday, Sep 26, 2026 - Overcast
Hi: 20°C 68°F
Lo: 11°C 51°F
Sunrise 07:13 AM
Sunset 07:11 PM
Wind NNE 15 km/h9 mph
Dew Point 4°C40°F
uv Index 4
Barometric Pressure 102.2 kPa30.18 in
POP 6% *
Humidity 40%
Sun, 27th
Acton ON Weather - Sunday, Sep 27, 2026 - Sunny
Hi: 20°C 67°F
Lo: 11°C 52°F
Sunrise 07:14 AM
Sunset 07:09 PM
Wind ESE 10 km/h6 mph
Dew Point 6°C43°F
uv Index 5
Barometric Pressure 102.2 kPa30.18 in
POP 1% *
Humidity 46%
Mon, 28th
Acton ON Weather - Monday, Sep 28, 2026 - Sunny
Hi: 20°C 67°F
Lo: 11°C 52°F
Sunrise 07:15 AM
Sunset 07:07 PM
Wind SSE 19 km/h12 mph
Dew Point 9°C48°F
uv Index 5
Barometric Pressure 101.4 kPa29.94 in
POP 3% *
Humidity 57%
Tue, 29th
Acton ON Weather - Tuesday, Sep 29, 2026 - Overcast
Hi: 15°C 59°F
Lo: 8°C 47°F
Sunrise 07:16 AM
Sunset 07:06 PM
Wind W 21 km/h13 mph
Dew Point 5°C41°F
uv Index 2
Barometric Pressure 100.9 kPa29.8 in
POP 31% *
Humidity 77%
Wed, 30th
Acton ON Weather - Wednesday, Sep 30, 2026 - Sunny
Hi: 16°C 60°F
Lo: 7°C 44°F
Sunrise 07:18 AM
Sunset 07:04 PM
Wind S 18 km/h11 mph
Dew Point 3°C38°F
uv Index 4
Barometric Pressure 101.5 kPa29.97 in
POP 3% *
Humidity 51%
Thu, 1st
Acton ON Weather - Thursday, Oct 1, 2026 - Sunny
Hi: 16°C 62°F
Lo: 12°C 54°F
Sunrise 07:19 AM
Sunset 07:02 PM
Wind W 23 km/h15 mph
Dew Point 5°C42°F
uv Index 4
Barometric Pressure 101.1 kPa29.85 in
POP 8% *
Humidity 56%
Fri, 2nd
Acton ON Weather - Friday, Oct 2, 2026 - Patchy Rain Nearby
Hi: 14°C 58°F
Lo: 9°C 48°F
Sunrise 07:20 AM
Sunset 07:00 PM
Wind W 24 km/h15 mph
Dew Point 4°C39°F
uv Index 3
Barometric Pressure 101.6 kPa30 in
POP 10% *
Humidity 52%
Sat, 3rd
Acton ON Weather - Saturday, Oct 3, 2026 - Overcast
Hi: 13°C 56°F
Lo: 7°C 45°F
Sunrise 07:21 AM
Sunset 06:58 PM
Wind WNW 16 km/h10 mph
Dew Point 2°C35°F
uv Index 3
Barometric Pressure 102.3 kPa30.21 in
POP 12% *
Humidity 51%
* POP = Probability of Precipitation. Data for 12:00 PM.