Marlborough · first 14 days — live forecast · rest of month — climate corridor
🗺️ 14-day forecast map
Marlborough & 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
73°
Mon, Sep 7
Coldest night
49°
Wed, Sep 9
Days with precip
2 / 14
of 14 forecast days
Nicest day
Thu, Sep 10
mild, dry, light wind
The next 4 weekends
plan ahead
Sat 5 – Sun 6 Sep
70° 51°
18% precip chance
Sat 12 – Sun 13 Sep
67° 52°
41% precip chance
Sat 19 – Sun 20 Sep
55° 41°
typical range
Sat 26 – Sun 27 Sep
56° 40°
typical range
30 days — Marlborough
14 forecast + 16 climatology
Mon · Today Mostly cloudy
71°54°12%⌄
Wind6 mph SW
Gusts17 mph
UV index5 – Moderate
Precip chance12%
Sunrise06:26
Sunset19:57
Tue · Tomorrow Sunny
73°53°7%⌄
Wind8 mph S
Gusts14 mph
UV index5 – Moderate
Precip chance7%
Sunrise06:28
Sunset19:55
Wednesday 2/9 Mostly cloudy
68°58°1.5 mm⌄
Wind6 mph SE
Gusts13 mph
UV index1 – Low
Precip chance63%
Sunrise06:29
Sunset19:53
Thursday 3/9 Showers
66°52°0.8 mm⌄
Wind6 mph SW
Gusts15 mph
UV index3 – Moderate
Precip chance59%
Sunrise06:31
Sunset19:51
Friday 4/9 Showers
64°52°4.2 mm⌄
Wind7 mph S
Gusts18 mph
UV index5 – Moderate
Precip chance79%
Sunrise06:32
Sunset19:49
Saturday 5/9 Mostly cloudy
64°51°18%⌄
Wind3 mph SW
Gusts9 mph
UV index5 – Moderate
Precip chance18%
Sunrise06:33
Sunset19:47
Sunday 6/9 Mostly cloudy
70°53°14%⌄
Wind6 mph W
Gusts17 mph
UV index6 – High
Precip chance14%
Sunrise06:35
Sunset19:44
Monday 7/9 Sunny
73°55°9%⌄
Wind6 mph S
Gusts17 mph
UV index6 – High
Precip chance9%
Sunrise06:36
Sunset19:42
Tuesday 8/9 Sunny
66°53°18%⌄
Wind7 mph S
Gusts14 mph
UV index5 – Moderate
Precip chance18%
Sunrise06:38
Sunset19:40
Wednesday 9/9 Sunny
65°49°14%⌄
Wind6 mph SW
Gusts14 mph
UV index5 – Moderate
Precip chance14%
Sunrise06:39
Sunset19:38
Thursday 10/9 Sunny
72°51°4%⌄
Wind8 mph W
Gusts17 mph
UV index6 – High
Precip chance4%
Sunrise06:41
Sunset19:36
Friday 11/9 Mostly cloudy
72°53°8%⌄
Wind5 mph S
Gusts11 mph
UV index5 – Moderate
Precip chance8%
Sunrise06:42
Sunset19:34
Saturday 12/9 Sunny
61°53°0.5 mm⌄
Wind8 mph E
Gusts15 mph
UV index5 – Moderate
Precip chance41%
Sunrise06:44
Sunset19:32
Sunday 13/9 Mostly cloudy
67°52°19%⌄
Wind6 mph W
Gusts15 mph
UV index4 – Moderate
Precip chance19%
Sunrise06:45
Sunset19:29
Monday 14/9 Light rain (climatological)
59°44°1.5 mm⌄
Day≈53–64°
Night≈38–49°
Precip≈0.6 in / September
(climatological)Typical range for these dates · 1991–2020
Tuesday 15/9 Partly cloudy (climatological)
63°46°20%⌄
Day≈58–69°
Night≈41–52°
Precip≈0.6 in / September
(climatological)Typical range for these dates · 1991–2020
Wednesday 16/9 Partly cloudy (climatological)
62°46°20%⌄
Day≈56–67°
Night≈40–51°
Precip≈0.6 in / September
(climatological)Typical range for these dates · 1991–2020
Thursday 17/9 Light rain (climatological)
61°45°1.9 mm⌄
Day≈55–66°
Night≈40–51°
Precip≈0.6 in / September
(climatological)Typical range for these dates · 1991–2020
Friday 18/9 Partly cloudy (climatological)
54°41°20%⌄
Day≈49–60°
Night≈36–47°
Precip≈0.6 in / September
(climatological)Typical range for these dates · 1991–2020
Saturday 19/9 Partly cloudy (climatological)
55°42°20%⌄
Day≈49–60°
Night≈36–47°
Precip≈0.6 in / September
(climatological)Typical range for these dates · 1991–2020
Sunday 20/9 Light rain (climatological)
53°41°1.7 mm⌄
Day≈48–59°
Night≈35–46°
Precip≈0.6 in / September
(climatological)Typical range for these dates · 1991–2020
Monday 21/9 Partly cloudy (climatological)
56°42°20%⌄
Day≈51–62°
Night≈37–48°
Precip≈0.6 in / September
(climatological)Typical range for these dates · 1991–2020
Tuesday 22/9 Partly cloudy (climatological)
58°44°20%⌄
Day≈53–64°
Night≈38–49°
Precip≈0.6 in / September
(climatological)Typical range for these dates · 1991–2020
Wednesday 23/9 Light rain (climatological)
65°47°1.5 mm⌄
Day≈59–70°
Night≈42–53°
Precip≈0.6 in / September
(climatological)Typical range for these dates · 1991–2020
Thursday 24/9 Partly cloudy (climatological)
58°43°20%⌄
Day≈53–63°
Night≈38–49°
Precip≈0.6 in / September
(climatological)Typical range for these dates · 1991–2020
Friday 25/9 Partly cloudy (climatological)
55°42°20%⌄
Day≈49–60°
Night≈36–47°
Precip≈0.6 in / September
(climatological)Typical range for these dates · 1991–2020
Saturday 26/9 Light rain (climatological)
52°40°1.7 mm⌄
Day≈47–58°
Night≈35–45°
Precip≈0.6 in / September
(climatological)Typical range for these dates · 1991–2020
Sunday 27/9 Partly cloudy (climatological)
56°42°20%⌄
Day≈51–62°
Night≈37–48°
Precip≈0.6 in / September
(climatological)Typical range for these dates · 1991–2020
Monday 28/9 Partly cloudy (climatological)
56°42°20%⌄
Day≈51–62°
Night≈37–48°
Precip≈0.6 in / September
(climatological)Typical range for these dates · 1991–2020
Tuesday 29/9 Light rain (climatological)
59°44°1.1 mm⌄
Day≈53–64°
Night≈38–49°
Precip≈0.6 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 Marlborough, 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.