Clarks Summit · first 14 days — live forecast · rest of month — climate corridor
🗺️ 14-day forecast map
Clarks Summit & 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
81°
Mon, Sep 14
Coldest night
50°
Sat, Sep 12
Days with precip
8 / 14
of 14 forecast days
Nicest day
Mon, Sep 7
mild, dry, light wind
The next 4 weekends
plan ahead
Sat 5 – Sun 6 Sep
72° 51°
30% precip chance
Sat 12 – Sun 13 Sep
76° 50°
20% precip chance
Sat 19 – Sun 20 Sep
73° 58°
typical range
Sat 26 – Sun 27 Sep
74° 59°
typical range
30 days — Clarks Summit
14 forecast + 16 climatology
Wed · Today Showers
74°67°1.1 mm⌄
Wind6 mph SE
Gusts21 mph
UV index1 – Low
Precip chance74%
Sunrise06:30
Sunset19:34
Thu · Tomorrow Fog
78°64°9.2 mm⌄
Wind7 mph W
Gusts21 mph
UV index5 – Moderate
Precip chance90%
Sunrise06:31
Sunset19:33
Friday 4/9 Showers
73°63°3.3 mm⌄
Wind8 mph NW
Gusts16 mph
UV index5 – Moderate
Precip chance81%
Sunrise06:32
Sunset19:31
Saturday 5/9 Sunny
72°56°9%⌄
Wind10 mph NW
Gusts18 mph
UV index7 – High
Precip chance9%
Sunrise06:33
Sunset19:29
Sunday 6/9 Fog
66°51°0.2 mm⌄
Wind7 mph N
Gusts14 mph
UV index6 – Moderate
Precip chance30%
Sunrise06:34
Sunset19:28
Monday 7/9 Sunny
71°51°7%⌄
Wind6 mph N
Gusts13 mph
UV index6 – High
Precip chance7%
Sunrise06:35
Sunset19:26
Tuesday 8/9 Mostly cloudy
71°56°2.7 mm⌄
Wind8 mph SW
Gusts14 mph
UV index5 – Moderate
Precip chance78%
Sunrise06:36
Sunset19:24
Wednesday 9/9 Showers
73°63°6.9 mm⌄
Wind3 mph W
Gusts9 mph
UV index5 – Moderate
Precip chance92%
Sunrise06:37
Sunset19:23
Thursday 10/9 Fog
76°63°2.4 mm⌄
Wind11 mph W
Gusts25 mph
UV index5 – Moderate
Precip chance84%
Sunrise06:38
Sunset19:21
Friday 11/9 Mostly cloudy
62°51°0.1 mm⌄
Wind11 mph NW
Gusts27 mph
UV index4 – Moderate
Precip chance26%
Sunrise06:39
Sunset19:19
Saturday 12/9 Mostly cloudy
69°50°20%⌄
Wind3 mph E
Gusts14 mph
UV index5 – Moderate
Precip chance20%
Sunrise06:40
Sunset19:17
Sunday 13/9 Mostly cloudy
76°56°16%⌄
Wind9 mph SW
Gusts14 mph
UV index6 – High
Precip chance16%
Sunrise06:41
Sunset19:16
Monday 14/9 Showers
81°61°17.2 mm⌄
Wind8 mph SW
Gusts12 mph
UV index7 – High
Precip chance85%
Sunrise06:42
Sunset19:14
Tuesday 15/9 Showers
73°63°11.7 mm⌄
Wind4 mph NW
Gusts6 mph
UV index5 – Moderate
Precip chance91%
Sunrise06:43
Sunset19:12
Wednesday 16/9 Rain (climatological)
74°60°10.3 mm⌄
Day≈69–80°
Night≈54–65°
Precip≈4.7 in / September
(climatological)Typical range for these dates · 1991–2020
Thursday 17/9 Partly cloudy (climatological)
77°61°20%⌄
Day≈71–82°
Night≈56–66°
Precip≈4.7 in / September
(climatological)Typical range for these dates · 1991–2020
Friday 18/9 Partly cloudy (climatological)
77°61°20%⌄
Day≈71–82°
Night≈56–66°
Precip≈4.7 in / September
(climatological)Typical range for these dates · 1991–2020
Saturday 19/9 Rain (climatological)
73°59°7.1 mm⌄
Day≈68–78°
Night≈53–64°
Precip≈4.7 in / September
(climatological)Typical range for these dates · 1991–2020
Sunday 20/9 Partly cloudy (climatological)
71°58°20%⌄
Day≈66–77°
Night≈52–63°
Precip≈4.7 in / September
(climatological)Typical range for these dates · 1991–2020
Monday 21/9 Partly cloudy (climatological)
67°55°20%⌄
Day≈61–72°
Night≈49–60°
Precip≈4.7 in / September
(climatological)Typical range for these dates · 1991–2020
Tuesday 22/9 Rain (climatological)
68°56°7.1 mm⌄
Day≈63–73°
Night≈50–61°
Precip≈4.7 in / September
(climatological)Typical range for these dates · 1991–2020
Wednesday 23/9 Partly cloudy (climatological)
72°58°20%⌄
Day≈67–78°
Night≈53–64°
Precip≈4.7 in / September
(climatological)Typical range for these dates · 1991–2020
Thursday 24/9 Partly cloudy (climatological)
76°61°20%⌄
Day≈71–82°
Night≈55–66°
Precip≈4.7 in / September
(climatological)Typical range for these dates · 1991–2020
Friday 25/9 Rain (climatological)
76°61°9.9 mm⌄
Day≈71–82°
Night≈55–66°
Precip≈4.7 in / September
(climatological)Typical range for these dates · 1991–2020
Saturday 26/9 Partly cloudy (climatological)
74°60°20%⌄
Day≈69–80°
Night≈54–65°
Precip≈4.7 in / September
(climatological)Typical range for these dates · 1991–2020
Sunday 27/9 Partly cloudy (climatological)
73°59°20%⌄
Day≈68–78°
Night≈53–64°
Precip≈4.7 in / September
(climatological)Typical range for these dates · 1991–2020
Monday 28/9 Rain (climatological)
70°57°8.3 mm⌄
Day≈64–75°
Night≈51–62°
Precip≈4.7 in / September
(climatological)Typical range for these dates · 1991–2020
Tuesday 29/9 Partly cloudy (climatological)
69°56°20%⌄
Day≈64–74°
Night≈51–62°
Precip≈4.7 in / September
(climatological)Typical range for these dates · 1991–2020
Wednesday 30/9 Partly cloudy (climatological)
74°60°20%⌄
Day≈69–80°
Night≈54–65°
Precip≈4.7 in / September
(climatological)Typical range for these dates · 1991–2020
Thursday 1/10 Rain (climatological)
61°47°9.9 mm⌄
Day≈56–67°
Night≈42–53°
Precip≈4.7 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 Clarks Summit, 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.