Quincy · first 14 days — live forecast · rest of month — climate corridor
🗺️ 14-day forecast map
Quincy & 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
86°
Mon, Sep 14
Coldest night
37°
Sat, Sep 5
Days with precip
1 / 14
of 14 forecast days
Nicest day
Sat, Sep 12
mild, dry, light wind
The next 4 weekends
plan ahead
Sat 5 – Sun 6 Sep
71° 37°
8% precip chance
Sat 12 – Sun 13 Sep
83° 42°
3% precip chance
Sat 19 – Sun 20 Sep
78° 44°
typical range
Sat 26 – Sun 27 Sep
80° 45°
typical range
30 days — Quincy
14 forecast + 16 climatology
Thu · Today Light rain
57°45°16.5 mm⌄
Wind4 mph S
Gusts8 mph
UV index1 – Low
Precip chance88%
Sunrise06:33
Sunset19:32
Fri · Tomorrow Showers
63°42°0.6 mm⌄
Wind10 mph SW
Gusts15 mph
UV index6 – Moderate
Precip chance44%
Sunrise06:34
Sunset19:31
Saturday 5/9 Sunny
64°37°8%⌄
Wind10 mph SW
Gusts22 mph
UV index8 – High
Precip chance8%
Sunrise06:35
Sunset19:29
Sunday 6/9 Sunny
71°37°3%⌄
Wind12 mph SW
Gusts20 mph
UV index7 – High
Precip chance3%
Sunrise06:36
Sunset19:27
Monday 7/9 Sunny
75°38°1%⌄
Wind7 mph SW
Gusts19 mph
UV index6 – High
Precip chance1%
Sunrise06:37
Sunset19:26
Tuesday 8/9 Mostly cloudy
78°40°5%⌄
Wind9 mph SW
Gusts12 mph
UV index6 – High
Precip chance5%
Sunrise06:38
Sunset19:24
Wednesday 9/9 Sunny
80°48°4%⌄
Wind11 mph W
Gusts15 mph
UV index7 – High
Precip chance4%
Sunrise06:39
Sunset19:22
Thursday 10/9 Sunny
83°44°1%⌄
Wind9 mph W
Gusts16 mph
UV index7 – High
Precip chance1%
Sunrise06:40
Sunset19:21
Friday 11/9 Sunny
75°46°1%⌄
Wind12 mph SW
Gusts19 mph
UV index6 – High
Precip chance1%
Sunrise06:41
Sunset19:19
Saturday 12/9 Sunny
72°43°2%⌄
Wind11 mph SW
Gusts15 mph
UV index6 – High
Precip chance2%
Sunrise06:42
Sunset19:18
Sunday 13/9 Sunny
83°42°3%⌄
Wind7 mph SW
Gusts15 mph
UV index7 – High
Precip chance3%
Sunrise06:43
Sunset19:16
Monday 14/9 Sunny
86°46°1%⌄
Wind8 mph SW
Gusts13 mph
UV index8 – Very high
Precip chance1%
Sunrise06:43
Sunset19:14
Tuesday 15/9 Mostly cloudy
85°46°6%⌄
Wind7 mph SW
Gusts16 mph
UV index6 – High
Precip chance6%
Sunrise06:44
Sunset19:13
Wednesday 16/9 Sunny
83°49°3%⌄
Wind10 mph SW
Gusts12 mph
UV index7 – High
Precip chance3%
Sunrise06:45
Sunset19:11
Thursday 17/9 Rain (climatological)
73°42°4.9 mm⌄
Day≈68–79°
Night≈36–47°
Precip≈1.5 in / September
(climatological)Typical range for these dates · 1991–2020
Friday 18/9 Partly cloudy (climatological)
80°45°20%⌄
Day≈74–85°
Night≈40–51°
Precip≈1.5 in / September
(climatological)Typical range for these dates · 1991–2020
Saturday 19/9 Partly cloudy (climatological)
78°45°20%⌄
Day≈73–83°
Night≈39–50°
Precip≈1.5 in / September
(climatological)Typical range for these dates · 1991–2020
Sunday 20/9 Rain (climatological)
78°44°4.7 mm⌄
Day≈72–83°
Night≈39–50°
Precip≈1.5 in / September
(climatological)Typical range for these dates · 1991–2020
Monday 21/9 Partly cloudy (climatological)
76°43°20%⌄
Day≈71–82°
Night≈38–49°
Precip≈1.5 in / September
(climatological)Typical range for these dates · 1991–2020
Tuesday 22/9 Partly cloudy (climatological)
70°40°20%⌄
Day≈64–75°
Night≈34–45°
Precip≈1.5 in / September
(climatological)Typical range for these dates · 1991–2020
Wednesday 23/9 Rain (climatological)
74°42°3.6 mm⌄
Day≈68–79°
Night≈37–47°
Precip≈1.5 in / September
(climatological)Typical range for these dates · 1991–2020
Thursday 24/9 Partly cloudy (climatological)
76°43°20%⌄
Day≈70–81°
Night≈38–48°
Precip≈1.5 in / September
(climatological)Typical range for these dates · 1991–2020
Friday 25/9 Partly cloudy (climatological)
82°47°20%⌄
Day≈76–87°
Night≈41–52°
Precip≈1.5 in / September
(climatological)Typical range for these dates · 1991–2020
Saturday 26/9 Rain (climatological)
80°46°4.6 mm⌄
Day≈74–85°
Night≈40–51°
Precip≈1.5 in / September
(climatological)Typical range for these dates · 1991–2020
Sunday 27/9 Partly cloudy (climatological)
78°45°20%⌄
Day≈73–84°
Night≈39–50°
Precip≈1.5 in / September
(climatological)Typical range for these dates · 1991–2020
Monday 28/9 Partly cloudy (climatological)
76°43°20%⌄
Day≈71–81°
Night≈38–49°
Precip≈1.5 in / September
(climatological)Typical range for these dates · 1991–2020
Tuesday 29/9 Rain (climatological)
74°42°3.2 mm⌄
Day≈68–79°
Night≈37–47°
Precip≈1.5 in / September
(climatological)Typical range for these dates · 1991–2020
Wednesday 30/9 Partly cloudy (climatological)
74°42°20%⌄
Day≈69–80°
Night≈37–48°
Precip≈1.5 in / September
(climatological)Typical range for these dates · 1991–2020
Thursday 1/10 Partly cloudy (climatological)
65°33°20%⌄
Day≈60–71°
Night≈28–38°
Precip≈1.5 in / October
(climatological)Typical range for these dates · 1991–2020
Friday 2/10 Rain (climatological)
70°36°2.5 mm⌄
Day≈65–75°
Night≈30–41°
Precip≈1.5 in / October
(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 Quincy, 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.