South Lockport · first 14 days — live forecast · rest of month — climate corridor
🗺️ 14-day forecast map
South Lockport & 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
80°
Tue, Sep 1
Coldest night
58°
Sat, Aug 29
Days with precip
5 / 14
of 14 forecast days
Nicest day
Tue, Sep 8
mild, dry, light wind
The next 4 weekends
plan ahead
Sat 29 – Sun 30 Aug
76° 58°
26% precip chance
Sat 5 – Sun 6 Sep
73° 60°
11% precip chance
Sat 12 – Sun 13 Sep
72° 57°
typical range
Sat 19 – Sun 20 Sep
73° 57°
typical range
30 days — South Lockport
14 forecast + 16 climatology
Fri · Today Sunny
75°60°5%⌄
Wind10 mph N
Gusts16 mph
UV index6 – High
Precip chance5%
Sunrise06:34
Sunset19:57
Sat · Tomorrow Sunny
76°58°8%⌄
Wind13 mph SW
Gusts19 mph
UV index6 – High
Precip chance8%
Sunrise06:35
Sunset19:55
Sunday 30/8 Mostly cloudy
75°66°0.1 mm⌄
Wind10 mph W
Gusts19 mph
UV index6 – High
Precip chance26%
Sunrise06:37
Sunset19:53
Monday 31/8 Showers
79°65°7.6 mm⌄
Wind20 mph SW
Gusts35 mph
UV index6 – High
Precip chance89%
Sunrise06:38
Sunset19:52
Tuesday 1/9 Showers
80°68°8.1 mm⌄
Wind10 mph NE
Gusts25 mph
UV index7 – High
Precip chance86%
Sunrise06:39
Sunset19:50
Wednesday 2/9 Mostly cloudy
79°69°6.3 mm⌄
Wind12 mph S
Gusts28 mph
UV index6 – High
Precip chance86%
Sunrise06:40
Sunset19:48
Thursday 3/9 Sunny
76°69°1.8 mm⌄
Wind11 mph W
Gusts19 mph
UV index6 – High
Precip chance60%
Sunrise06:41
Sunset19:46
Friday 4/9 Sunny
74°64°13%⌄
Wind10 mph E
Gusts20 mph
UV index6 – High
Precip chance13%
Sunrise06:42
Sunset19:45
Saturday 5/9 Sunny
73°63°11%⌄
Wind13 mph NE
Gusts25 mph
UV index6 – High
Precip chance11%
Sunrise06:43
Sunset19:43
Sunday 6/9 Mostly cloudy
71°60°10%⌄
Wind11 mph NE
Gusts17 mph
UV index6 – High
Precip chance10%
Sunrise06:44
Sunset19:41
Monday 7/9 Mostly cloudy
73°64°10%⌄
Wind10 mph NW
Gusts20 mph
UV index6 – High
Precip chance10%
Sunrise06:45
Sunset19:39
Tuesday 8/9 Sunny
68°60°7%⌄
Wind11 mph NW
Gusts19 mph
UV index6 – High
Precip chance7%
Sunrise06:46
Sunset19:38
Wednesday 9/9 Mostly cloudy
78°59°28%⌄
Wind10 mph W
Gusts17 mph
UV index6 – High
Precip chance28%
Sunrise06:47
Sunset19:36
Thursday 10/9 Showers
70°60°7.9 mm⌄
Wind13 mph NE
Gusts16 mph
UV index4 – Moderate
Precip chance84%
Sunrise06:49
Sunset19:34
Friday 11/9 Rain (climatological)
69°57°7.8 mm⌄
Day≈63–74°
Night≈52–62°
Precip≈2.7 in / September
(climatological)Typical range for these dates · 1991–2020
Saturday 12/9 Partly cloudy (climatological)
72°59°20%⌄
Day≈67–78°
Night≈54–64°
Precip≈2.7 in / September
(climatological)Typical range for these dates · 1991–2020
Sunday 13/9 Partly cloudy (climatological)
69°57°20%⌄
Day≈63–74°
Night≈52–62°
Precip≈2.7 in / September
(climatological)Typical range for these dates · 1991–2020
Monday 14/9 Rain (climatological)
69°57°6.7 mm⌄
Day≈64–74°
Night≈52–63°
Precip≈2.7 in / September
(climatological)Typical range for these dates · 1991–2020
Tuesday 15/9 Partly cloudy (climatological)
64°54°20%⌄
Day≈59–69°
Night≈49–60°
Precip≈2.7 in / September
(climatological)Typical range for these dates · 1991–2020
Wednesday 16/9 Partly cloudy (climatological)
64°54°20%⌄
Day≈58–69°
Night≈49–59°
Precip≈2.7 in / September
(climatological)Typical range for these dates · 1991–2020
Thursday 17/9 Rain (climatological)
63°54°3.4 mm⌄
Day≈57–68°
Night≈48–59°
Precip≈2.7 in / September
(climatological)Typical range for these dates · 1991–2020
Friday 18/9 Partly cloudy (climatological)
67°56°20%⌄
Day≈62–72°
Night≈51–61°
Precip≈2.7 in / September
(climatological)Typical range for these dates · 1991–2020
Saturday 19/9 Partly cloudy (climatological)
69°57°20%⌄
Day≈64–74°
Night≈52–63°
Precip≈2.7 in / September
(climatological)Typical range for these dates · 1991–2020
Sunday 20/9 Rain (climatological)
73°60°4.8 mm⌄
Day≈68–78°
Night≈54–65°
Precip≈2.7 in / September
(climatological)Typical range for these dates · 1991–2020
Monday 21/9 Partly cloudy (climatological)
68°57°20%⌄
Day≈63–73°
Night≈51–62°
Precip≈2.7 in / September
(climatological)Typical range for these dates · 1991–2020
Tuesday 22/9 Partly cloudy (climatological)
66°55°20%⌄
Day≈60–71°
Night≈50–61°
Precip≈2.7 in / September
(climatological)Typical range for these dates · 1991–2020
Wednesday 23/9 Rain (climatological)
64°54°7.6 mm⌄
Day≈59–70°
Night≈49–60°
Precip≈2.7 in / September
(climatological)Typical range for these dates · 1991–2020
Thursday 24/9 Partly cloudy (climatological)
65°55°20%⌄
Day≈59–70°
Night≈49–60°
Precip≈2.7 in / September
(climatological)Typical range for these dates · 1991–2020
Friday 25/9 Partly cloudy (climatological)
64°55°20%⌄
Day≈59–70°
Night≈49–60°
Precip≈2.7 in / September
(climatological)Typical range for these dates · 1991–2020
Saturday 26/9 Rain (climatological)
70°58°6.7 mm⌄
Day≈65–76°
Night≈53–63°
Precip≈2.7 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 South Lockport, 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.