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Canada › Ontario › Ancaster

Ancaster, ON Weather

Current weather

7:00 AM
15°C
Partly Cloudy
High 15° · Low 9° · 70%
Wind
SW 16 km/h
Wind gusts
32 km/h
Humidity
91%
Air quality (AQHI)
1.5 · Low risk
UV index
0 · Low
More details
Dew point
13°C
Pressure
100.7 kPa ↗ rising
Visibility
10 km
Sunrise
7:00 AM
Sunset
5:06 PM
Daylight
10 h 6 min
Observed at Hamilton Munro Int'l Airport, 7:00 AM EST · Environment and Climate Change Canada

Hourly forecast

Hourly →
  • Now15°16%
  • 8 AM14°10%
  • 9 AM14°10%
  • 10 AM14°10%
  • 11 AM14°10%
  • 12 PM15°10%
  • 1 PM15°10%
  • 2 PM14°10%
  • 3 PM14°10%
  • 4 PM13°10%
  • 5 PM12°10%
  • 6 PM12°10%
  • 7 PM11°60%
  • 8 PM11°60%
  • 9 PM11°60%
  • 10 PM11°60%
  • 11 PM11°60%
  • Fri
  • 12 AM11°60%
  • 1 AM11°60%
  • 2 AM11°60%
  • 3 AM10°60%
  • 4 AM10°70%
  • 5 AM10°70%
  • 6 AM9°70%

14-day forecast

Full 14-day →
TodayNov 515°9°Chance of showersChance of showers70%

Day

A mix of sun and cloud. 60 percent chance of showers early this morning. Wind southwest 30 km/h. High 15. UV index 3 or moderate.

Wind
S 30 km/h
Precipitation
60% · 1 mm
UV index (max)
3 Moderate
Air quality (AQHI)
2 · Low risk

Night

Cloudy with 70 percent chance of showers. Wind southwest 30 km/h becoming light late this evening. Low 9.

Low
9°
Wind
SW 30 km/h
Precipitation
70%
Sunrise7:00 AM
Sunset5:06 PM
Daylight10 h 6 min
Normal9° / 1°
FriNov 611°3°Periods of rainChance of showers40%

Day

Periods of rain. High 11. UV index 1 or low.

Wind
SW 15 km/h
Precipitation
40% · 8 mm
UV index (max)
1 Low
Air quality (AQHI)
2 · Low risk

Night

Cloudy with 40 percent chance of showers. Low plus 3.

Low
3°
Precipitation
40%
Sunrise7:00 AM
Sunset5:07 PM
Daylight10 h 6 min
SatNov 710°3°CloudyChance of showers30%

Day

Cloudy. High 10.

Precipitation
30% · 5 mm
UV index (max)
1 Low

Night

Cloudy with 30 percent chance of showers. Low plus 3.

Low
3°
Precipitation
30%
Sunrise7:01 AM
Sunset5:05 PM
Daylight10 h 4 min
SunNov 88°5°CloudyCloudy periods17%

Day

Cloudy. High 8.

Precipitation
17% · 0 mm
UV index (max)
2 Low

Night

Cloudy periods. Low plus 5.

Low
5°
Sunrise7:02 AM
Sunset5:04 PM
Daylight10 h 1 min
MonNov 910°7°A mix of sun and cloudCloudy periods13%

Day

A mix of sun and cloud. High 10.

Precipitation
13% · 0 mm
UV index (max)
4 Moderate

Night

Cloudy periods. Low 7.

Low
7°
Sunrise7:03 AM
Sunset5:03 PM
Daylight9 h 59 min
TueNov 1011°5°A mix of sun and cloudCloudy periods27%

Day

A mix of sun and cloud. High 11.

Precipitation
27% · 0.1 mm
UV index (max)
4 Moderate

Night

Cloudy periods. Low plus 5.

Low
5°
Sunrise7:05 AM
Sunset5:02 PM
Daylight9 h 57 min
WedNov 119°4°A mix of sun and cloud25%

Day

A mix of sun and cloud. High 9.

Precipitation
25% · 0.1 mm
UV index (max)
2 Low

Night

Low 4.

Low
4°
Sunrise7:06 AM
Sunset5:01 PM
Daylight9 h 54 min
Days 8–14 · trend, lower confidence
ThuNov 126°3°ShowersNight low 3°83%

Day

Showers. High 6.

Wind
N 14 km/h
Wind gusts
30 km/h
Precipitation
83% · 6 mm
UV index (max)
2 Low

Night

Low 3.

Low
3°
Sunrise7:07 AM
Sunset5:00 PM
Daylight9 h 52 min
SourceExtended outlook
FriNov 135°1°Mostly cloudyNight low 1°36%

Day

Mostly cloudy. High 5.

Wind
N 18 km/h
Wind gusts
36 km/h
Precipitation
36% · 0.3 mm
UV index (max)
1 Low

Night

Low 1.

Low
1°
Sunrise7:09 AM
Sunset4:59 PM
Daylight9 h 50 min
SourceExtended outlook
SatNov 148°2°Mostly cloudyNight low 2°16%

Day

Mostly cloudy. High 8.

Wind
W 19 km/h
Wind gusts
41 km/h
Precipitation
16% · 0 mm
UV index (max)
3 Moderate

Night

Low 2.

Low
2°
Sunrise7:10 AM
Sunset4:58 PM
Daylight9 h 48 min
SourceExtended outlook
SunNov 1511°5°Mostly cloudyNight low 5°16%

Day

Mostly cloudy. High 11.

Wind
SW 18 km/h
Wind gusts
40 km/h
Precipitation
16% · 0 mm
UV index (max)
4 Moderate

Night

Low 5.

Low
5°
Sunrise7:11 AM
Sunset4:57 PM
Daylight9 h 45 min
SourceExtended outlook
MonNov 1610°4°Partly cloudyNight low 4°78%

Day

Partly cloudy. High 10.

Wind
N 7 km/h
Wind gusts
20 km/h
Precipitation
78% · 6 mm
UV index (max)
3 Moderate

Night

Low 4.

Low
4°
Sunrise7:12 AM
Sunset4:56 PM
Daylight9 h 43 min
SourceExtended outlook
TueNov 1710°5°ShowersNight low 5°64%

Day

Showers. High 10.

Wind
E 10 km/h
Wind gusts
34 km/h
Precipitation
64% · 1 mm
UV index (max)
3 Moderate

Night

Low 5.

Low
5°
Sunrise7:14 AM
Sunset4:55 PM
Daylight9 h 41 min
SourceExtended outlook
WedNov 1814°8°ShowersNight low 8°59%

Day

Showers. High 14.

Wind
SW 13 km/h
Wind gusts
39 km/h
Precipitation
59% · 0.8 mm
UV index (max)
3 Moderate

Night

Low 8.

Low
8°
Sunrise7:15 AM
Sunset4:54 PM
Daylight9 h 39 min
SourceExtended outlook
Sunrise7:00 AM
Sunset5:06 PM
Daylight10 h 6 min
MoonWaning Crescent14% lit · rise 3:08 AM · set 3:10 PM

Pollen today · Ancaster

TreesNonenone in the air
GrassNonenone in the air
WeedsLow<1 grains/m³ · Ragweed
Fri: weeds low · Sat: weeds low · Sun: weeds low
Model estimate from WeatherAPI.com — pollen grains per m³ of air; levels on the National Allergy Bureau scale.

Climate · monthly normals

Full climate →
MonthJanFebMarAprMayJunJulAugSepOctNovDec
High-2°-1°4°12°19°24°27°25°21°14°8°1°
Low-9°-9°-5°2°7°13°15°15°10°5°0°-6°
Precip64 mm58 mm68 mm79 mm79 mm85 mm101 mm79 mm82 mm77 mm84 mm73 mm
ECCC

Activities today

Derived from the forecast
Laundry dayPoorLine-drying weather
GrillingPoorFire up the grill
RunningFairLace up outside
PatioPoorDinner outdoors
Forecast: Environment and Climate Change Canada (City of Hamilton), issued 5:00 AM · Days 8–14: WeatherAPI.com · weather.gc.ca · 43.2181°N, 79.9872°W · Elevation 253 m · Population 40,557 · Time zone America/Toronto