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Weather in Ancaster, Canada 🇨🇦

Current Weather in Ancaster

Light rain
18°C
Feels like 14°C. Light rain.
🌬️ 25 km/h W
💧 78% Humidity
🧭 1012 hPa
👁️ 10.0 km Visibility
☀️ UV Index: 1.8
🌡️ Dew Point: 14°C
🌅 Sunrise: 06:35 AM
🌇 Sunset: 08:09 PM
Map Overlays:

In Ancaster right now it is 18°C and light rain, feeling like 14°C. Relative humidity is 78%, with winds around 25 km/h, and the UV index is 2 (low). The next few days in Ancaster look set for about 12°C up to 27°C.

Hourly Forecast for Ancaster

16:00
Patchy light rain
18°
59%
17:00
Light rain
19°
65%
18:00
Light rain
18°
66%
19:00
Light rain
18°
70%
20:00
Light rain
17°
70%
21:00
Light rain
16°
71%
22:00
Light rain
16°
77%
23:00
Patchy rain nearby
15°
72%
00:00
Patchy rain nearby
15°
70%
01:00
Overcast
15°
29%
02:00
Patchy rain nearby
15°
19%
03:00
Cloudy
15°
24%
04:00
Overcast
15°
23%
05:00
Clear
15°
12%
06:00
Mist
15°
19%
07:00
Partly Cloudy
14°
18%
08:00
Sunny
15°
11%
09:00
Sunny
17°
7%
10:00
Partly Cloudy
18°
6%
11:00
Partly Cloudy
20°
5%
12:00
Patchy rain nearby
21°
9%
13:00
Patchy rain nearby
22°
10%
14:00
Patchy rain nearby
22°
13%
15:00
Patchy rain nearby
21°
13%

14-Day Forecast for Ancaster

Mon, Aug 24
Light rain Light rain
19° / 12°
Tue, Aug 25
Patchy rain nearby Patchy rain nearby
22° / 14°
Wed, Aug 26
Overcast Overcast
27° / 14°
Thu, Aug 27
Sunny Sunny
26° / 18°
Fri, Aug 28
Sunny Sunny
25° / 16°
Sat, Aug 29
Overcast Overcast
24° / 12°
Sun, Aug 30
Overcast Overcast
20° / 14°
Mon, Aug 31
Light rain shower Light rain shower
23° / 16°
Tue, Sep 01
Sunny Sunny
26° / 16°
Wed, Sep 02
Overcast Overcast
19° / 16°
Thu, Sep 03
Patchy rain nearby Patchy rain nearby
24° / 16°
Fri, Sep 04
Overcast Overcast
23° / 15°
Sat, Sep 05
Light rain shower Light rain shower
18° / 14°
Sun, Sep 06
Fog Fog
25° / 15°

Additional Forecasts for Ancaster

Air Quality

💨 US EPA Index 1 (Good)
CO (Carbon Monoxide) 122.0 μg/m³
O₃ (Ozone) 50.0 μg/m³
NO₂ (Nitrogen Dioxide) 3.4 μg/m³
SO₂ (Sulphur Dioxide) 1.1 μg/m³
PM2.5 (Fine particles) 3.0 μg/m³
PM10 (Coarse particles) 3.0 μg/m³

Historical Weather

Weather Forecasts for Other Cities in Canada

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Best Time to Be Outside in Ancaster Tomorrow

There is no good daylight window left in Ancaster today. Tomorrow, the most comfortable window looks like 07:00 to 10:00, when it is around 15°C. It should stay dry through that window. The next likely rain is around 16:00.

Frequently Asked Questions about Weather in Ancaster

What is the temperature in Ancaster right now?

The current temperature in Ancaster is 18°C (64°F), light rain (feels like 14°C).

What's the weather like in Ancaster right now?

Right now Ancaster has Light rain, humidity 78%, wind 25 km/h W.

What is today's forecast for Ancaster?

Today in Ancaster: high 19°C, low 12°C, light rain. Chance of rain: 87%.

What is the 7-day weather forecast for Ancaster?

Daily highs and lows for Ancaster:

  • 2026-08-24: 19°C / 12°C
  • 2026-08-25: 22°C / 14°C
  • 2026-08-26: 27°C / 14°C
  • 2026-08-27: 26°C / 18°C
  • 2026-08-28: 25°C / 16°C
  • 2026-08-29: 24°C / 12°C
  • 2026-08-30: 20°C / 14°C
Is it going to rain in Ancaster today?

There is a 87% chance of rain in Ancaster today. Total expected precipitation: 15.05 mm.

What is the wind speed in Ancaster right now?

Wind in Ancaster is currently 25 km/h (16 mph) from the W.

What is the UV index in Ancaster right now?

The UV index in Ancaster is currently 1.8 (low). Sun protection is recommended when the index is 3 or higher.

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