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
98°
Fri, Sep 4
Coldest night
73°
Tue, Sep 8
Days with precip
7 / 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
97° 76°
57% precip chance
Sat 12 – Sun 13 Sep
96° 74°
4% precip chance
Sat 19 – Sun 20 Sep
89° 71°
typical range
Sat 26 – Sun 27 Sep
87° 69°
typical range
30 days — Quincy
14 forecast + 16 climatology
Mon · Today Sunny
93°76°16.2 mm⌄
Wind8 mph SE
Gusts23 mph
UV index10 – Very high
Precip chance73%
Sunrise07:14
Sunset20:02
Tue · Tomorrow Sunny
95°76°6.1 mm⌄
Wind8 mph NE
Gusts11 mph
UV index10 – Very high
Precip chance64%
Sunrise07:14
Sunset20:01
Wednesday 2/9 Mostly cloudy
95°76°11%⌄
Wind10 mph E
Gusts15 mph
UV index9 – Very high
Precip chance11%
Sunrise07:15
Sunset20:00
Thursday 3/9 Showers
92°73°4.6 mm⌄
Wind9 mph S
Gusts15 mph
UV index8 – Very high
Precip chance79%
Sunrise07:16
Sunset19:59
Friday 4/9 Sunny
98°75°1.3 mm⌄
Wind8 mph S
Gusts15 mph
UV index10 – Very high
Precip chance57%
Sunrise07:16
Sunset19:58
Saturday 5/9 Sunny
96°76°6%⌄
Wind7 mph NW
Gusts17 mph
UV index9 – Very high
Precip chance6%
Sunrise07:17
Sunset19:56
Sunday 6/9 Sunny
97°77°3.1 mm⌄
Wind6 mph NW
Gusts17 mph
UV index9 – Very high
Precip chance57%
Sunrise07:17
Sunset19:55
Monday 7/9 Showers
88°74°22.7 mm⌄
Wind5 mph E
Gusts16 mph
UV index7 – High
Precip chance88%
Sunrise07:18
Sunset19:54
Tuesday 8/9 Fog
88°73°3.6 mm⌄
Wind4 mph NE
Gusts15 mph
UV index7 – High
Precip chance80%
Sunrise07:18
Sunset19:53
Wednesday 9/9 Sunny
92°75°12%⌄
Wind8 mph S
Gusts20 mph
UV index8 – Very high
Precip chance12%
Sunrise07:19
Sunset19:51
Thursday 10/9 Sunny
95°79°8%⌄
Wind13 mph SW
Gusts30 mph
UV index9 – Very high
Precip chance8%
Sunrise07:20
Sunset19:50
Friday 11/9 Sunny
96°80°4%⌄
Wind11 mph SW
Gusts30 mph
UV index9 – Very high
Precip chance4%
Sunrise07:20
Sunset19:49
Saturday 12/9 Sunny
93°75°3%⌄
Wind9 mph NE
Gusts20 mph
UV index8 – Very high
Precip chance3%
Sunrise07:21
Sunset19:48
Sunday 13/9 Sunny
96°74°4%⌄
Wind7 mph NE
Gusts11 mph
UV index9 – Very high
Precip chance4%
Sunrise07:21
Sunset19:46
Monday 14/9 Rain (climatological)
88°72°10.0 mm⌄
Day≈83–94°
Night≈67–77°
Precip≈4.9 in / September
(climatological)Typical range for these dates · 1991–2020
Tuesday 15/9 Partly cloudy (climatological)
91°74°20%⌄
Day≈86–97°
Night≈68–79°
Precip≈4.9 in / September
(climatological)Typical range for these dates · 1991–2020
Wednesday 16/9 Partly cloudy (climatological)
95°76°20%⌄
Day≈89–100°
Night≈70–81°
Precip≈4.9 in / September
(climatological)Typical range for these dates · 1991–2020
Thursday 17/9 Rain (climatological)
91°73°10.8 mm⌄
Day≈85–96°
Night≈68–79°
Precip≈4.9 in / September
(climatological)Typical range for these dates · 1991–2020
Friday 18/9 Partly cloudy (climatological)
88°72°20%⌄
Day≈83–93°
Night≈66–77°
Precip≈4.9 in / September
(climatological)Typical range for these dates · 1991–2020
Saturday 19/9 Partly cloudy (climatological)
87°71°20%⌄
Day≈82–92°
Night≈66–76°
Precip≈4.9 in / September
(climatological)Typical range for these dates · 1991–2020
Sunday 20/9 Rain (climatological)
89°72°12.5 mm⌄
Day≈83–94°
Night≈67–77°
Precip≈4.9 in / September
(climatological)Typical range for these dates · 1991–2020
Monday 21/9 Partly cloudy (climatological)
90°73°20%⌄
Day≈84–95°
Night≈67–78°
Precip≈4.9 in / September
(climatological)Typical range for these dates · 1991–2020
Tuesday 22/9 Partly cloudy (climatological)
91°74°20%⌄
Day≈86–97°
Night≈68–79°
Precip≈4.9 in / September
(climatological)Typical range for these dates · 1991–2020
Wednesday 23/9 Rain (climatological)
95°76°11.3 mm⌄
Day≈90–101°
Night≈71–82°
Precip≈4.9 in / September
(climatological)Typical range for these dates · 1991–2020
Thursday 24/9 Partly cloudy (climatological)
89°73°20%⌄
Day≈84–95°
Night≈67–78°
Precip≈4.9 in / September
(climatological)Typical range for these dates · 1991–2020
Friday 25/9 Partly cloudy (climatological)
89°73°20%⌄
Day≈84–95°
Night≈67–78°
Precip≈4.9 in / September
(climatological)Typical range for these dates · 1991–2020
Saturday 26/9 Rain (climatological)
87°71°15.8 mm⌄
Day≈82–92°
Night≈66–76°
Precip≈4.9 in / September
(climatological)Typical range for these dates · 1991–2020
Sunday 27/9 Partly cloudy (climatological)
84°69°20%⌄
Day≈78–89°
Night≈64–75°
Precip≈4.9 in / September
(climatological)Typical range for these dates · 1991–2020
Monday 28/9 Partly cloudy (climatological)
87°71°20%⌄
Day≈82–93°
Night≈66–77°
Precip≈4.9 in / September
(climatological)Typical range for these dates · 1991–2020
Tuesday 29/9 Rain (climatological)
91°73°10.8 mm⌄
Day≈86–96°
Night≈68–79°
Precip≈4.9 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 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.