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
87°
Fri, Aug 28
Coldest night
46°
Mon, Sep 7
Days with precip
8 / 14
of 14 forecast days
Nicest day
Wed, Aug 26
mild, dry, light wind
The next 4 weekends
plan ahead
Sat 29 – Sun 30 Aug
84° 59°
9% precip chance
Sat 5 – Sun 6 Sep
67° 50°
70% precip chance
Sat 12 – Sun 13 Sep
66° 47°
typical range
Sat 19 – Sun 20 Sep
63° 48°
typical range
30 days — Marlborough
14 forecast + 16 climatology
Tue · Today Sunny
81°60°5%⌄
Wind10 mph W
Gusts19 mph
UV index6 – High
Precip chance5%
Sunrise06:04
Sunset19:32
Wed · Tomorrow Sunny
81°60°5%⌄
Wind7 mph W
Gusts20 mph
UV index7 – High
Precip chance5%
Sunrise06:05
Sunset19:30
Thursday 27/8 Mostly cloudy
84°63°14%⌄
Wind13 mph SW
Gusts23 mph
UV index7 – High
Precip chance14%
Sunrise06:06
Sunset19:29
Friday 28/8 Fog
87°65°1.5 mm⌄
Wind8 mph W
Gusts22 mph
UV index7 – High
Precip chance64%
Sunrise06:07
Sunset19:27
Saturday 29/8 Mostly cloudy
80°59°9%⌄
Wind8 mph N
Gusts23 mph
UV index7 – High
Precip chance9%
Sunrise06:08
Sunset19:25
Sunday 30/8 Mostly cloudy
84°59°6%⌄
Wind10 mph W
Gusts30 mph
UV index7 – High
Precip chance6%
Sunrise06:09
Sunset19:24
Monday 31/8 Mostly cloudy
78°64°2.7 mm⌄
Wind11 mph SW
Gusts35 mph
UV index6 – High
Precip chance75%
Sunrise06:10
Sunset19:22
Tuesday 1/9 Showers
73°58°13.3 mm⌄
Wind8 mph N
Gusts16 mph
UV index5 – Moderate
Precip chance91%
Sunrise06:11
Sunset19:20
Wednesday 2/9 Showers
70°56°25.6 mm⌄
Wind7 mph SE
Gusts16 mph
UV index5 – Moderate
Precip chance93%
Sunrise06:12
Sunset19:19
Thursday 3/9 Showers
58°54°5.1 mm⌄
Wind7 mph NE
Gusts19 mph
UV index3 – Moderate
Precip chance92%
Sunrise06:13
Sunset19:17
Friday 4/9 Showers
65°56°4.4 mm⌄
Wind8 mph N
Gusts21 mph
UV index4 – Moderate
Precip chance88%
Sunrise06:14
Sunset19:15
Saturday 5/9 Fog
67°55°2.2 mm⌄
Wind6 mph N
Gusts21 mph
UV index4 – Moderate
Precip chance70%
Sunrise06:15
Sunset19:14
Sunday 6/9 Mostly cloudy
63°50°1.5 mm⌄
Wind8 mph N
Gusts15 mph
UV index5 – Moderate
Precip chance62%
Sunrise06:16
Sunset19:12
Monday 7/9 Showers
55°46°0.5 mm⌄
Wind5 mph E
Gusts14 mph
UV index3 – Moderate
Precip chance47%
Sunrise06:17
Sunset19:10
Tuesday 8/9 Rain (climatological)
64°49°6.1 mm⌄
Day≈58–69°
Night≈44–55°
Precip≈4.8 in / September
(climatological)Typical range for these dates · 1991–2020
Wednesday 9/9 Partly cloudy (climatological)
71°54°20%⌄
Day≈66–76°
Night≈48–59°
Precip≈4.8 in / September
(climatological)Typical range for these dates · 1991–2020
Thursday 10/9 Partly cloudy (climatological)
69°53°20%⌄
Day≈64–75°
Night≈47–58°
Precip≈4.8 in / September
(climatological)Typical range for these dates · 1991–2020
Friday 11/9 Rain (climatological)
70°53°12.7 mm⌄
Day≈65–75°
Night≈48–59°
Precip≈4.8 in / September
(climatological)Typical range for these dates · 1991–2020
Saturday 12/9 Partly cloudy (climatological)
66°51°20%⌄
Day≈60–71°
Night≈45–56°
Precip≈4.8 in / September
(climatological)Typical range for these dates · 1991–2020
Sunday 13/9 Partly cloudy (climatological)
60°47°20%⌄
Day≈55–65°
Night≈42–53°
Precip≈4.8 in / September
(climatological)Typical range for these dates · 1991–2020
Monday 14/9 Rain (climatological)
63°49°13.9 mm⌄
Day≈57–68°
Night≈44–54°
Precip≈4.8 in / September
(climatological)Typical range for these dates · 1991–2020
Tuesday 15/9 Partly cloudy (climatological)
64°49°20%⌄
Day≈58–69°
Night≈44–55°
Precip≈4.8 in / September
(climatological)Typical range for these dates · 1991–2020
Wednesday 16/9 Partly cloudy (climatological)
67°51°20%⌄
Day≈62–72°
Night≈46–57°
Precip≈4.8 in / September
(climatological)Typical range for these dates · 1991–2020
Thursday 17/9 Rain (climatological)
71°54°15.2 mm⌄
Day≈66–76°
Night≈48–59°
Precip≈4.8 in / September
(climatological)Typical range for these dates · 1991–2020
Friday 18/9 Partly cloudy (climatological)
68°52°20%⌄
Day≈63–74°
Night≈47–58°
Precip≈4.8 in / September
(climatological)Typical range for these dates · 1991–2020
Saturday 19/9 Partly cloudy (climatological)
63°49°20%⌄
Day≈57–68°
Night≈43–54°
Precip≈4.8 in / September
(climatological)Typical range for these dates · 1991–2020
Sunday 20/9 Rain (climatological)
61°48°11.9 mm⌄
Day≈56–67°
Night≈42–53°
Precip≈4.8 in / September
(climatological)Typical range for these dates · 1991–2020
Monday 21/9 Partly cloudy (climatological)
63°49°20%⌄
Day≈57–68°
Night≈43–54°
Precip≈4.8 in / September
(climatological)Typical range for these dates · 1991–2020
Tuesday 22/9 Partly cloudy (climatological)
64°50°20%⌄
Day≈59–69°
Night≈44–55°
Precip≈4.8 in / September
(climatological)Typical range for these dates · 1991–2020
Wednesday 23/9 Rain (climatological)
71°54°12.3 mm⌄
Day≈66–76°
Night≈48–59°
Precip≈4.8 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.