New York, NY 22° Los Angeles, CA 16° Chicago, IL 25° Houston, TX 25° Miami, FL 25° Phoenix, AZ 30° Seattle, WA 15° Denver, CO 24° Toronto, ON 20° Vancouver, BC 16°
WeatherLiveOntarioDorchester

Dorchester, ON Weather

Current WeatherDorchester · 3:32 AM EDT
31° | 23°
24°C
Feels like 26°
Mostly cloudy
WindS 7 mph · Gusts 9 mph
Precip82% · 0.31 in
Humidity91% · Dew point 22°
UV index7 High
Air Quality35 Good
Pressure29.94 inHg
Visibility6 mi
Sunrise / Sunset6:50 AM · 7:58 PM · 13h 8m

Weather map — Dorchester

Full radar →
Now
24°
29%
7 mph
04:00
23°
30%
6 mph
05:00
23°
27%
6 mph
06:00
23°
27%
6 mph
07:00
23°
35%
5 mph
08:00
23°
36%
5 mph
09:00
24°
29%
7 mph
10:00
25°
27%
6 mph
11:00
30°
25%
7 mph
12:00
30°
27%
8 mph
13:00
28°
15%
8 mph
14:00
31°
13%
9 mph
15:00
29°
0.04 in
11 mph
16:00
31°
12%
9 mph
17:00
31°
12%
8 mph
18:00
30°
14%
11 mph
19:00
29°
18%
13 mph
20:00
25°
0.19 in
8 mph
21:00
25°
0.06 in
7 mph
22:00
24°
23%
9 mph
23:00
24°
24%
8 mph
00:00
23°
17%
8 mph
01:00
22°
29%
7 mph
02:00
22°
19%
6 mph

Today · Wed 9/2

High 31°
82% / 0.31 in

Thunderstorms. Winds SW at 13 mph.

Overnight · Wed 9/2

Low 23°
— / –

Thunderstorms.

Tomorrow · Thu 9/3

28° | 20°
84% / 1.12 in

Fog. Winds NW at 10 mph.

7-day trend

Dorchester · temperature + precipitation

10-day forecast

Updated 3:32 AM

Details & indices

Wind
7 mph S
Gusts 9 mph
Humidity
91%
Dew point 22°
Pressure
29.94 inHg
Rising
UV index
7 — High
High today
Air Quality
Good
AQI 35 · US EPA
Allergy
Low
Ragweed
Visibility
6 mi
Clear view
Allergy — Dorchester

🌿 Conditions right now

View all →
Birch
None
Grass
Low
Oak
None
Alder
None
Hazel
None
Mugwort
Low
Ragweed
Moderate

Sun & moon

Sunrise6:50 AM
Sunset7:58 PM
Length of day13h 8m
Moonrise10:21 PM
Moonset1:07 PM
Next full moonSep 26 Harvest Moon
Latitude42.9834°N
Longitude-81.0664°E

Water temps nearby

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No beaches within 50 miles
🌤️No rain expected in the next 90 minutes
Now+30+60+90 min
Minute-by-minute precip · HRRR nowcast

Daily planner

computed from today's forecast
Laundry day
Poor
Line-drying weather
Grilling
Fair
Fire up the grill
Running
Poor
Lace up outside
Patio
Fair
Dinner outdoors
Nearby places in {{REGION}}
Toronto
Fog
20°
Ottawa
Mostly cloudy
16°
Mississauga
Fog
20°
Brampton
Fog
20°
Hamilton
Fog
20°
London
Partly cloudy
23°
Data sources · Wednesday, September 2
Where the Dorchester forecast comes from
This page blends NOAA/NWS model guidance with global ensembles for the 10-day outlook, air quality and alerts. Data refreshes every hour, current conditions every 15 minutes. Coordinates: 42.9834°N, -81.0664°.
NBM + global weather models
Updated: 3:32 AM
Weather in Dorchester
Over the next 10 days Dorchester tops out around 31° (Wednesday) and dips to 8° on the coolest night (Wednesday). Roughly 3.6 in of rain falls over the period, with Tuesday the most likely wet day (89%). Expect a blustery spell — gusts near 45 mph on Friday. No watches or warnings are active for the area right now. Right now Dorchester is running about 55° warmer than Toronto. Longer view: four full seasons with serious winter and real summer heat.
Dorchester, ON · Elev 853 ft · 42.98°N, 81.07°W · Ontario · Forecast computed for these exact coordinates
Powered by NWS/NOAA guidance, multi-model forecasts and official environmental feeds · NOAA/NWS · EPA AirNow · MET Norway · global models
Updated: 3:32 AM