🇨🇦 Weather in Dartmouth
Map Overlays:
Hourly Forecast for Dartmouth
19:00
23°
86%
20:00
22°
89%
21:00
22°
94%
22:00
22°
96%
23:00
22°
96%
00:00
22°
96%
01:00
22°
97%
02:00
22°
97%
03:00
22°
97%
04:00
21°
94%
05:00
21°
94%
06:00
21°
97%
07:00
21°
97%
08:00
20°
46%
09:00
20°
43%
10:00
20°
42%
11:00
20°
39%
12:00
20°
47%
13:00
21°
38%
14:00
23°
24%
15:00
27°
10%
16:00
26°
15%
17:00
26°
18%
18:00
24°
22%
14-Day Forecast for Dartmouth
2026-08-23
Moderate rain
23° /
19°
2026-08-24
Heavy rain
27° /
19°
2026-08-25
Sunny
27° /
17°
2026-08-26
Mist
23° /
16°
2026-08-27
Overcast
27° /
14°
2026-08-28
Overcast
24° /
14°
2026-08-29
Fog
22° /
17°
Additional Forecasts for Dartmouth
Air Quality
💨 US EPA Index 1 (Good)
CO (Carbon Monoxide) 130.0 μg/m³
O₃ (Ozone) 73.0 μg/m³
NO₂ (Nitrogen Dioxide) 2.1 μg/m³
SO₂ (Sulphur Dioxide) 0.6 μg/m³
PM2.5 (Fine particles) 4.5 μg/m³
PM10 (Coarse particles) 6.4 μg/m³
Historical Weather
Weather Forecasts for Other Cities in Canada
Weather in Dartmouth — FAQ
Answers refreshed each request based on current conditions in Dartmouth.
What is the weather like right now in Dartmouth?
Right now in Dartmouth, Canada the temperature is 21.9°C (feels like 23.8°C), with light rain. Relative humidity is 97% and wind is 13.0 km/h.
What is today's high and low temperature in Dartmouth?
Today's forecast high in Dartmouth is 23.1°C and the overnight low is 18.8°C. The diurnal range — high minus low — depends on cloud cover; clear days swing more than overcast ones.
Will it rain in Dartmouth today?
The chance of precipitation in Dartmouth today is 95%. Forecast accuracy is highest within the next 6 hours and decreases steadily out to 14 days.
How often does the weather here update?
Current observations refresh every 15-60 minutes from the nearest monitoring stations operated by national meteorological agencies. The hourly forecast updates approximately every hour; the 7- and 14-day outlook is recomputed several times per day.
What does 'feels like' temperature mean?
Feels-like (apparent) temperature accounts for humidity, wind chill and direct sunshine — variables that change how the human body perceives heat or cold. On hot, humid days it can be 3-7°C above the actual reading; on cold windy days it can be 5-15°C below.
Why does the temperature in Dartmouth differ from nearby cities?
Even short distances can change temperatures noticeably. Dartmouth's reading reflects altitude, proximity to large bodies of water, urban heat island effects, and the exact location of the monitoring stations supplying the data. Coastal cities are typically milder and more humid than inland equivalents.