Downtown Dartmouth · first 14 days — live forecast · rest of month — climate corridor
🗺️ 14-day forecast map
Downtown Dartmouth & neighbors — hit play
Every city on the map carries real forecast data from the same models as its city page, refreshed several times a day. The icon is the day's overall look; the number is the afternoon high.
Next 14 days at a glance
from the model forecast
Hottest day
22°
Tue, Sep 1
Coldest night
5°
Wed, Sep 9
Days with precip
6 / 14
of 14 forecast days
Nicest day
Mon, Sep 7
mild, dry, light wind
The next 4 weekends
plan ahead
Sat 5 – Sun 6 Sep
18° 10°
92% precip chance
Sat 12 – Sun 13 Sep
19° 8°
70% precip chance
Sat 19 – Sun 20 Sep
19° 9°
typical range
Sat 26 – Sun 27 Sep
17° 8°
typical range
30 days — Downtown Dartmouth
14 forecast + 16 climatology
Tue · Today Sunny
22°12°4.4 mm⌄
Wind6 mph NW
Gusts10 mph
UV index6 – Moderate
Precip chance66%
Sunrise06:36
Sunset19:51
Wed · Tomorrow Fog
21°10°22%⌄
Wind9 mph SE
Gusts19 mph
UV index6 – Moderate
Precip chance22%
Sunrise06:38
Sunset19:49
Thursday 3/9 Fog
21°13°0.4 mm⌄
Wind11 mph SE
Gusts13 mph
UV index5 – Moderate
Precip chance45%
Sunrise06:39
Sunset19:48
Friday 4/9 Showers
21°14°29.0 mm⌄
Wind16 mph NE
Gusts38 mph
UV index1 – Low
Precip chance93%
Sunrise06:40
Sunset19:46
Saturday 5/9 Showers
18°12°9.3 mm⌄
Wind16 mph N
Gusts36 mph
UV index3 – Moderate
Precip chance92%
Sunrise06:41
Sunset19:44
Sunday 6/9 Showers
18°10°1.0 mm⌄
Wind12 mph NE
Gusts25 mph
UV index4 – Moderate
Precip chance65%
Sunrise06:42
Sunset19:42
Monday 7/9 Sunny
22°8°9%⌄
Wind7 mph NW
Gusts18 mph
UV index6 – High
Precip chance9%
Sunrise06:43
Sunset19:40
Tuesday 8/9 Mostly cloudy
17°9°1.5 mm⌄
Wind12 mph NW
Gusts27 mph
UV index4 – Moderate
Precip chance70%
Sunrise06:45
Sunset19:38
Wednesday 9/9 Mostly cloudy
16°5°8%⌄
Wind8 mph N
Gusts20 mph
UV index5 – Moderate
Precip chance8%
Sunrise06:46
Sunset19:36
Thursday 10/9 Mostly cloudy
14°6°20%⌄
Wind5 mph W
Gusts11 mph
UV index3 – Moderate
Precip chance20%
Sunrise06:47
Sunset19:35
Friday 11/9 Partly cloudy
14°9°0.2 mm⌄
Wind4 mph N
Gusts13 mph
UV index3 – Moderate
Precip chance36%
Sunrise06:48
Sunset19:33
Saturday 12/9 Sunny
19°8°5%⌄
Wind10 mph NW
Gusts16 mph
UV index5 – Moderate
Precip chance5%
Sunrise06:49
Sunset19:31
Sunday 13/9 Mostly cloudy
18°9°1.5 mm⌄
Wind18 mph SW
Gusts40 mph
UV index4 – Moderate
Precip chance70%
Sunrise06:50
Sunset19:29
Monday 14/9 Partly cloudy
18°10°0.1 mm⌄
Wind10 mph N
Gusts20 mph
UV index4 – Moderate
Precip chance27%
Sunrise06:52
Sunset19:27
Tuesday 15/9 Rain (climatological)
18°9°7.2 mm⌄
Day≈15–21°
Night≈6–12°
Precip≈4.1 in / September
(climatological)Typical range for these dates · 1991–2020
Wednesday 16/9 Partly cloudy (climatological)
20°11°20%⌄
Day≈17–23°
Night≈8–14°
Precip≈4.1 in / September
(climatological)Typical range for these dates · 1991–2020
Thursday 17/9 Partly cloudy (climatological)
21°11°20%⌄
Day≈18–24°
Night≈8–14°
Precip≈4.1 in / September
(climatological)Typical range for these dates · 1991–2020
Friday 18/9 Rain (climatological)
19°10°8.9 mm⌄
Day≈16–22°
Night≈7–13°
Precip≈4.1 in / September
(climatological)Typical range for these dates · 1991–2020
Saturday 19/9 Partly cloudy (climatological)
19°10°20%⌄
Day≈16–22°
Night≈7–13°
Precip≈4.1 in / September
(climatological)Typical range for these dates · 1991–2020
Sunday 20/9 Partly cloudy (climatological)
17°9°20%⌄
Day≈14–20°
Night≈6–12°
Precip≈4.1 in / September
(climatological)Typical range for these dates · 1991–2020
Monday 21/9 Rain (climatological)
16°8°11.3 mm⌄
Day≈13–19°
Night≈5–11°
Precip≈4.1 in / September
(climatological)Typical range for these dates · 1991–2020
Tuesday 22/9 Partly cloudy (climatological)
20°10°20%⌄
Day≈17–23°
Night≈7–13°
Precip≈4.1 in / September
(climatological)Typical range for these dates · 1991–2020
Wednesday 23/9 Partly cloudy (climatological)
22°11°20%⌄
Day≈19–25°
Night≈8–14°
Precip≈4.1 in / September
(climatological)Typical range for these dates · 1991–2020
Thursday 24/9 Rain (climatological)
20°11°13.4 mm⌄
Day≈17–23°
Night≈8–14°
Precip≈4.1 in / September
(climatological)Typical range for these dates · 1991–2020
Friday 25/9 Partly cloudy (climatological)
18°9°20%⌄
Day≈15–21°
Night≈6–12°
Precip≈4.1 in / September
(climatological)Typical range for these dates · 1991–2020
Saturday 26/9 Partly cloudy (climatological)
17°9°20%⌄
Day≈14–20°
Night≈6–12°
Precip≈4.1 in / September
(climatological)Typical range for these dates · 1991–2020
Sunday 27/9 Rain (climatological)
16°8°7.9 mm⌄
Day≈13–19°
Night≈5–11°
Precip≈4.1 in / September
(climatological)Typical range for these dates · 1991–2020
Monday 28/9 Partly cloudy (climatological)
16°8°20%⌄
Day≈13–19°
Night≈5–11°
Precip≈4.1 in / September
(climatological)Typical range for these dates · 1991–2020
Tuesday 29/9 Partly cloudy (climatological)
18°9°20%⌄
Day≈15–21°
Night≈6–12°
Precip≈4.1 in / September
(climatological)Typical range for these dates · 1991–2020
Wednesday 30/9 Rain (climatological)
20°11°6.2 mm⌄
Day≈17–23°
Night≈8–14°
Precip≈4.1 in / September
(climatological)Typical range for these dates · 1991–2020
How does a 30-day outlook work?
The first 14 days are a live model forecast. The back half of the month shows the typical range for those dates — useful for planning, not a literal prediction.
First 14 days: a real forecast, blended from NBM, ECMWF and GFS runs. Trust it most inside three days; by the second week treat it as a lean, not a promise.
Rest of the month: past day 14 we stop pretending to forecast and switch to the climate corridor — the range those dates have produced over three decades computed directly for Downtown Dartmouth, with mild week-to-week wiggle.
Good question for this page: "Is late August usually humid in Chicago?" Bad question: "Do I need an umbrella on the 29th?" — three weeks out no one knows, and that's the honest answer.