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Canada › Ontario › Union

Union, ON Weather

Current weather

11:00 PM
13°C
Clear
High 20° · Low 4° · 4%
Wind
N 3 km/h
Wind gusts
31 km/h
Humidity
75%
Air quality (AQHI)
2 · Low risk
UV index
0 · Low
More details
Dew point
9°C
Pressure
102.9 kPa ↘ falling
Visibility
10 km
Sunrise
6:53 AM
Sunset
6:58 PM
Daylight
12 h 5 min
Observed at Grenadier Island, 11:00 PM EDT · Environment and Climate Change Canada

Hourly forecast

Hourly →
  • Now9°0%
  • 1 AM8°0%
  • 2 AM6°0%
  • 3 AM5°0%
  • 4 AM5°0%
  • 5 AM4°0%
  • 6 AM5°0%
  • 7 AM5°0%
  • 8 AM6°0%
  • 9 AM9°0%
  • 10 AM11°0%
  • 11 AM14°0%
  • 12 PM16°0%
  • 1 PM18°0%
  • 2 PM20°0%
  • 3 PM20°0%
  • 4 PM21°0%
  • 5 PM21°0%
  • 6 PM19°0%
  • 7 PM18°0%
  • 8 PM16°0%
  • 9 PM15°0%
  • 10 PM15°0%
  • 11 PM14°0%

14-day forecast

Full 14-day →
ThuSep 2420°4°SunnyClear4%

Day

Sunny. High 20.

Wind
NE 20 km/h
Wind gusts
27 km/h
Precipitation
4% · 0 mm
UV index (max)
5 Moderate
Air quality (AQHI)
2 · Low risk

Night

Clear. Fog patches developing overnight. Wind northeast 20 km/h becoming light early this evening. Low plus 4.

Low
4°
Wind
NE 20 km/h
Sunrise6:53 AM
Sunset6:58 PM
Daylight12 h 5 min
Normal18° / 8°
TodaySep 2521°8°SunnyClear6%

Day

Sunny. Fog patches dissipating in the morning. Wind becoming north 20 km/h in the morning. High 21. UV index 5 or moderate.

Wind
N 20 km/h
Precipitation
6% · 0 mm
UV index (max)
5 Moderate
Air quality (AQHI)
2 · Low risk

Night

Clear. Low 8.

Low
8°
Wind
N 10 km/h
Sunrise6:54 AM
Sunset6:56 PM
Daylight12 h 1 min
SatSep 2622°9°A mix of sun and cloudCloudy periods11%

Day

A mix of sun and cloud. High 22.

Precipitation
11% · 0 mm
UV index (max)
4 Moderate

Night

Cloudy periods. Low 9.

Low
9°
Sunrise6:56 AM
Sunset6:54 PM
Daylight11 h 58 min
SunSep 2722°10°A mix of sun and cloudCloudy periods11%

Day

A mix of sun and cloud. High 22.

Precipitation
11% · 0 mm
UV index (max)
2 Low

Night

Cloudy periods. Low 10.

Low
10°
Sunrise6:57 AM
Sunset6:52 PM
Daylight11 h 55 min
MonSep 2821°9°A mix of sun and cloudCloudy periods14%

Day

A mix of sun and cloud. High 21.

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

Night

Cloudy periods. Low 9.

Low
9°
Sunrise6:58 AM
Sunset6:50 PM
Daylight11 h 52 min
TueSep 2922°10°A mix of sun and cloudCloudy periods7%

Day

A mix of sun and cloud. High 22.

Precipitation
7% · 0 mm
UV index (max)
6 High

Night

Cloudy periods. Low 10.

Low
10°
Sunrise6:59 AM
Sunset6:48 PM
Daylight11 h 49 min
WedSep 3023°14°A mix of sun and cloud60%

Day

A mix of sun and cloud. High 23.

Precipitation
60% · 0.7 mm
UV index (max)
4 Moderate

Night

Low 14.

Low
14°
Sunrise7:00 AM
Sunset6:46 PM
Daylight11 h 45 min
Days 8–14 · trend, lower confidence
ThuOct 122°15°Partly cloudyNight low 15°17%

Day

Partly cloudy. High 22.

Wind
SW 14 km/h
Wind gusts
40 km/h
Precipitation
17% · 0 mm
UV index (max)
6 High

Night

Low 15.

Low
15°
Sunrise7:02 AM
Sunset6:44 PM
Daylight11 h 42 min
SourceExtended outlook
FriOct 228°19°Mostly cloudyNight low 19°7%

Day

Mostly cloudy. High 28.

Wind
SW 24 km/h
Wind gusts
49 km/h
Precipitation
7% · 0 mm
UV index (max)
7 High

Night

Low 19.

Low
19°
Sunrise7:03 AM
Sunset6:43 PM
Daylight11 h 39 min
SourceExtended outlook
SatOct 323°16°Mostly cloudyNight low 16°70%

Day

Mostly cloudy. High 23.

Wind
S 22 km/h
Wind gusts
48 km/h
Precipitation
70% · 2 mm
UV index (max)
5 Moderate

Night

Low 16.

Low
16°
Sunrise7:04 AM
Sunset6:41 PM
Daylight11 h 36 min
SourceExtended outlook
SunOct 426°15°Mostly cloudyNight low 15°38%

Day

Mostly cloudy. High 26.

Wind
S 22 km/h
Wind gusts
45 km/h
Precipitation
38% · 0.3 mm
UV index (max)
6 High

Night

Low 15.

Low
15°
Sunrise7:05 AM
Sunset6:39 PM
Daylight11 h 33 min
SourceExtended outlook
MonOct 522°12°ShowersNight low 12°89%

Day

Showers. High 22.

Wind
S 39 km/h
Wind gusts
69 km/h
Precipitation
89% · 22 mm
UV index (max)
5 Moderate

Night

Low 12.

Low
12°
Sunrise7:06 AM
Sunset6:37 PM
Daylight11 h 30 min
SourceExtended outlook
TueOct 612°8°Mostly cloudyNight low 8°57%

Day

Mostly cloudy. High 12.

Wind
W 20 km/h
Wind gusts
31 km/h
Precipitation
57% · 1 mm
UV index (max)
3 Moderate

Night

Low 8.

Low
8°
Sunrise7:08 AM
Sunset6:35 PM
Daylight11 h 27 min
SourceExtended outlook
WedOct 711°4°SunnyNight low 4°9%

Day

Sunny. High 11.

Wind
W 18 km/h
Wind gusts
23 km/h
Precipitation
9% · 0 mm
UV index (max)
4 Moderate

Night

Low 4.

Low
4°
Sunrise7:09 AM
Sunset6:34 PM
Daylight11 h 24 min
SourceExtended outlook
Sunrise6:53 AM
Sunset6:58 PM
Daylight12 h 5 min
MoonFull Moon97% lit · rise 6:20 PM · set 5:37 AM

Pollen today · Union

TreesNonenone in the air
GrassLow2 grains/m³
WeedsHigh60 grains/m³ · Ragweed
Fri: weeds high · Sat: weeds moderate · Sun: weeds moderate
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-4°-2°4°12°19°24°26°25°21°13°7°0°
Low-13°-13°-7°1°8°13°16°15°11°5°-1°-8°
Precip71 mm67 mm62 mm79 mm81 mm83 mm78 mm89 mm103 mm88 mm94 mm76 mm
ECCC

Activities today

Derived from the forecast
Laundry dayGreatLine-drying weather
GrillingGreatFire up the grill
RunningGreatLace up outside
PatioGreatDinner outdoors
Forecast: Environment and Climate Change Canada (Gananoque - Mallorytown), issued 3:30 PM · Days 8–14: WeatherAPI.com · weather.gc.ca · 44.4339°N, 75.9847°W · Elevation 97 m · Time zone America/Toronto