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CanadaOntarioAjax

Ajax, ON Weather

Current weather

4:00 AM
11°C
Clear
High 18° · Low 10° · 40%
Wind
NE 17 km/h
Wind gusts
30 km/h
Humidity
71%
Air quality (AQHI)
1.1 · Low risk
UV index
0 · Low
More details
Dew point
6°C
Pressure
102.4 kPa
Visibility
10 km
Sunrise
7:00 AM
Sunset
7:19 PM
Daylight
12 h 19 min
Observed at Oshawa Executive Airport, 4:00 AM EDT · Environment and Climate Change Canada

Hourly forecast

Hourly →
  • Now14°15%
  • 5 AM0%
  • 6 AM0%
  • 7 AM0%
  • 8 AM0%
  • 9 AM11°0%
  • 10 AM12°0%
  • 11 AM14°0%
  • 12 PM15°0%
  • 1 PM16°0%
  • 2 PM17°0%
  • 3 PM17°0%
  • 4 PM18°0%
  • 5 PM18°0%
  • 6 PM17°20%
  • 7 PM15°20%
  • 8 PM14°20%
  • 9 PM13°20%
  • 10 PM13°20%
  • 11 PM12°20%
  • Sun
  • 12 AM12°40%
  • 1 AM11°40%
  • 2 AM11°40%
  • 3 AM11°40%

14-day forecast

Full 14-day →
TodaySep 1918°10°A mix of sun and cloudChance of showers40%

Day

A mix of sun and cloud. High 18. UV index 6 or high.

Wind
E 15 km/h
Precipitation
40% · 0 mm
UV index (max)
6 High
Air quality (AQHI)
2 · Low risk

Night

Becoming cloudy in the evening. 40 percent chance of showers overnight. Low 10.

Low
10°
Wind
E 10 km/h
Precipitation
40%
Sunrise7:00 AM
Sunset7:19 PM
Daylight12 h 19 min
Normal19° / 9°
SunSep 2019°Chance of showersCloudy periods30%

Day

Cloudy with 30 percent chance of showers. High 19.

Precipitation
30% · 0.5 mm
UV index (max)
3 Low

Night

Clearing. Low 9.

Low
Sunrise7:01 AM
Sunset7:17 PM
Daylight12 h 16 min
MonSep 2118°CloudyCloudy14%

Day

Cloudy. High 18.

Precipitation
14% · 0 mm
UV index (max)
4 Moderate

Night

Cloudy. Low 9.

Low
Sunrise7:02 AM
Sunset7:15 PM
Daylight12 h 13 min
TueSep 2218°CloudyChance of showers40%

Day

Clearing. High 18.

Precipitation
40% · 0.2 mm
UV index (max)
4 Moderate

Night

Cloudy periods with 40 percent chance of showers. Low 8.

Low
Precipitation
40%
Sunrise7:03 AM
Sunset7:13 PM
Daylight12 h 10 min
WedSep 2315°Chance of showersCloudy40%

Day

Cloudy with 40 percent chance of showers. High 15.

Precipitation
40% · 11 mm
UV index (max)
4 Moderate

Night

Cloudy. Low 9.

Low
Sunrise7:04 AM
Sunset7:12 PM
Daylight12 h 7 min
ThuSep 2418°11°Cloudy91%

Day

Cloudy. High 18.

Precipitation
91% · 14 mm
UV index (max)
3 Moderate

Night

Low 11.

Low
11°
Sunrise7:05 AM
Sunset7:10 PM
Daylight12 h 4 min
FriSep 2518°11°SunnyNight low 11°7%

Day

Sunny. High 18.

Wind
NE 20 km/h
Wind gusts
34 km/h
Precipitation
7% · 0 mm
UV index (max)
5 Moderate

Night

Low 11.

Low
11°
Sunrise7:07 AM
Sunset7:08 PM
Daylight12 h 1 min
SourceExtended outlook
Days 8–14 · trend, lower confidence
SatSep 2617°13°SunnyNight low 13°3%

Day

Sunny. High 17.

Wind
E 12 km/h
Wind gusts
17 km/h
Precipitation
3% · 0 mm
UV index (max)
5 Moderate

Night

Low 13.

Low
13°
Sunrise7:08 AM
Sunset7:06 PM
Daylight11 h 58 min
SourceExtended outlook
SunSep 2717°15°SunnyNight low 15°6%

Day

Sunny. High 17.

Wind
E 16 km/h
Wind gusts
21 km/h
Precipitation
6% · 0 mm
UV index (max)
5 Moderate

Night

Low 15.

Low
15°
Sunrise7:09 AM
Sunset7:04 PM
Daylight11 h 55 min
SourceExtended outlook
MonSep 2817°15°SunnyNight low 15°5%

Day

Sunny. High 17.

Wind
S 13 km/h
Wind gusts
26 km/h
Precipitation
5% · 0 mm
UV index (max)
5 Moderate

Night

Low 15.

Low
15°
Sunrise7:10 AM
Sunset7:02 PM
Daylight11 h 52 min
SourceExtended outlook
TueSep 2917°15°Mostly cloudyNight low 15°13%

Day

Mostly cloudy. High 17.

Wind
NE 10 km/h
Wind gusts
26 km/h
Precipitation
13% · 0 mm
UV index (max)
4 Moderate

Night

Low 15.

Low
15°
Sunrise7:11 AM
Sunset7:01 PM
Daylight11 h 49 min
SourceExtended outlook
WedSep 3017°14°Mostly cloudyNight low 14°20%

Day

Mostly cloudy. High 17.

Wind
E 30 km/h
Wind gusts
43 km/h
Precipitation
20% · 0 mm
UV index (max)
4 Moderate

Night

Low 14.

Low
14°
Sunrise7:12 AM
Sunset6:59 PM
Daylight11 h 46 min
SourceExtended outlook
ThuOct 117°15°ShowersNight low 15°76%

Day

Showers. High 17.

Wind
E 35 km/h
Wind gusts
42 km/h
Precipitation
76% · 2 mm
UV index (max)
4 Moderate

Night

Low 15.

Low
15°
Sunrise7:14 AM
Sunset6:57 PM
Daylight11 h 43 min
SourceExtended outlook
FriOct 216°15°ShowersNight low 15°70%

Day

Showers. High 16.

Wind
E 25 km/h
Wind gusts
29 km/h
Precipitation
70% · 2 mm
UV index (max)
5 Moderate

Night

Low 15.

Low
15°
Sunrise7:15 AM
Sunset6:55 PM
Daylight11 h 40 min
SourceExtended outlook
Sunrise7:00 AM
Sunset7:19 PM
Daylight12 h 19 min
MoonFirst Quarter55% lit · rise 3:54 PM

Pollen today · Ajax

TreesNonenone in the air
GrassModerate6 grains/m³
WeedsHigh124 grains/m³ · Ragweed
Sun: weeds high · Mon: weeds high · Tue: weeds high
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-1°11°17°22°25°24°20°13°
Low-9°-7°-4°13°16°16°12°-4°
Precip66 mm57 mm54 mm73 mm79 mm74 mm73 mm77 mm94 mm70 mm85 mm71 mm
ECCC

Activities today

Derived from the forecast
Laundry dayFairLine-drying weather
GrillingGreatFire up the grill
RunningFairLace up outside
PatioFairDinner outdoors
Forecast: Environment and Climate Change Canada (Pickering - Oshawa - Southern Durham Region), issued 3:31 PM · Days 8–14: WeatherAPI.com · weather.gc.ca · 43.8501°N, 79.0329°W · Elevation 97 m · Population 119,677 · Time zone America/Toronto