Glastonbury · first 14 days — live forecast · rest of month — climate corridor
🗺️ 14-day forecast map
Glastonbury & 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
53°
Mon, Sep 7
Days with precip
5 / 14
of 14 forecast days
Nicest day
Sun, Sep 6
mild, dry, light wind
The next 4 weekends
plan ahead
Sat 29 – Sun 30 Aug
82° 58°
13% precip chance
Sat 5 – Sun 6 Sep
67° 54°
77% precip chance
Sat 12 – Sun 13 Sep
65° 51°
typical range
Sat 19 – Sun 20 Sep
65° 50°
typical range
30 days — Glastonbury
14 forecast + 16 climatology
Tue · Today Sunny
76°60°0.7 mm⌄
Wind6 mph W
Gusts18 mph
UV index7 – High
Precip chance38%
Sunrise06:09
Sunset19:35
Wed · Tomorrow Sunny
80°56°10%⌄
Wind6 mph W
Gusts15 mph
UV index7 – High
Precip chance10%
Sunrise06:10
Sunset19:34
Thursday 27/8 Mostly cloudy
81°62°17%⌄
Wind11 mph S
Gusts21 mph
UV index7 – High
Precip chance17%
Sunrise06:11
Sunset19:32
Friday 28/8 Sunny
87°66°0.8 mm⌄
Wind8 mph W
Gusts13 mph
UV index8 – Very high
Precip chance51%
Sunrise06:12
Sunset19:30
Saturday 29/8 Sunny
81°59°7%⌄
Wind7 mph NW
Gusts25 mph
UV index7 – High
Precip chance7%
Sunrise06:13
Sunset19:29
Sunday 30/8 Mostly cloudy
82°58°13%⌄
Wind10 mph S
Gusts25 mph
UV index7 – High
Precip chance13%
Sunrise06:14
Sunset19:27
Monday 31/8 Sunny
86°66°12%⌄
Wind7 mph NW
Gusts11 mph
UV index8 – Very high
Precip chance12%
Sunrise06:15
Sunset19:26
Tuesday 1/9 Showers
80°61°20.3 mm⌄
Wind9 mph S
Gusts20 mph
UV index6 – High
Precip chance82%
Sunrise06:16
Sunset19:24
Wednesday 2/9 Showers
73°60°4.9 mm⌄
Wind7 mph N
Gusts20 mph
UV index5 – Moderate
Precip chance88%
Sunrise06:17
Sunset19:22
Thursday 3/9 Showers
62°58°13.1 mm⌄
Wind6 mph N
Gusts18 mph
UV index4 – Moderate
Precip chance93%
Sunrise06:18
Sunset19:21
Friday 4/9 Showers
70°58°7.8 mm⌄
Wind10 mph NW
Gusts18 mph
UV index5 – Moderate
Precip chance83%
Sunrise06:19
Sunset19:19
Saturday 5/9 Mostly cloudy
67°54°3.6 mm⌄
Wind4 mph N
Gusts15 mph
UV index4 – Moderate
Precip chance77%
Sunrise06:20
Sunset19:17
Sunday 6/9 Mostly cloudy
66°55°19%⌄
Wind8 mph NW
Gusts15 mph
UV index5 – Moderate
Precip chance19%
Sunrise06:21
Sunset19:16
Monday 7/9 Mostly cloudy
60°53°23%⌄
Wind8 mph N
Gusts15 mph
UV index4 – Moderate
Precip chance23%
Sunrise06:22
Sunset19:14
Tuesday 8/9 Rain (climatological)
68°53°6.3 mm⌄
Day≈62–73°
Night≈47–58°
Precip≈4.4 in / September
(climatological)Typical range for these dates · 1991–2020
Wednesday 9/9 Partly cloudy (climatological)
70°54°20%⌄
Day≈65–76°
Night≈49–60°
Precip≈4.4 in / September
(climatological)Typical range for these dates · 1991–2020
Thursday 10/9 Partly cloudy (climatological)
71°55°20%⌄
Day≈65–76°
Night≈49–60°
Precip≈4.4 in / September
(climatological)Typical range for these dates · 1991–2020
Friday 11/9 Rain (climatological)
67°52°14.4 mm⌄
Day≈62–72°
Night≈47–57°
Precip≈4.4 in / September
(climatological)Typical range for these dates · 1991–2020
Saturday 12/9 Partly cloudy (climatological)
65°51°20%⌄
Day≈59–70°
Night≈45–56°
Precip≈4.4 in / September
(climatological)Typical range for these dates · 1991–2020
Sunday 13/9 Partly cloudy (climatological)
65°51°20%⌄
Day≈60–70°
Night≈46–56°
Precip≈4.4 in / September
(climatological)Typical range for these dates · 1991–2020
Monday 14/9 Rain (climatological)
62°49°12.2 mm⌄
Day≈57–68°
Night≈44–55°
Precip≈4.4 in / September
(climatological)Typical range for these dates · 1991–2020
Tuesday 15/9 Partly cloudy (climatological)
67°52°20%⌄
Day≈62–73°
Night≈47–58°
Precip≈4.4 in / September
(climatological)Typical range for these dates · 1991–2020
Wednesday 16/9 Partly cloudy (climatological)
71°55°20%⌄
Day≈66–77°
Night≈49–60°
Precip≈4.4 in / September
(climatological)Typical range for these dates · 1991–2020
Thursday 17/9 Rain (climatological)
72°55°13.0 mm⌄
Day≈66–77°
Night≈50–60°
Precip≈4.4 in / September
(climatological)Typical range for these dates · 1991–2020
Friday 18/9 Partly cloudy (climatological)
72°55°20%⌄
Day≈66–77°
Night≈49–60°
Precip≈4.4 in / September
(climatological)Typical range for these dates · 1991–2020
Saturday 19/9 Partly cloudy (climatological)
65°51°20%⌄
Day≈60–71°
Night≈46–57°
Precip≈4.4 in / September
(climatological)Typical range for these dates · 1991–2020
Sunday 20/9 Rain (climatological)
63°50°12.2 mm⌄
Day≈58–69°
Night≈44–55°
Precip≈4.4 in / September
(climatological)Typical range for these dates · 1991–2020
Monday 21/9 Partly cloudy (climatological)
65°51°20%⌄
Day≈60–71°
Night≈46–56°
Precip≈4.4 in / September
(climatological)Typical range for these dates · 1991–2020
Tuesday 22/9 Partly cloudy (climatological)
69°53°20%⌄
Day≈63–74°
Night≈48–58°
Precip≈4.4 in / September
(climatological)Typical range for these dates · 1991–2020
Wednesday 23/9 Rain (climatological)
73°55°8.1 mm⌄
Day≈67–78°
Night≈50–61°
Precip≈4.4 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 Glastonbury, 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.