Frankfort · first 14 days — live forecast · rest of month — climate corridor
🗺️ 14-day forecast map
Frankfort & 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
82°
Wed, Sep 2
Coldest night
57°
Sun, Aug 23
Days with precip
7 / 14
of 14 forecast days
Nicest day
Tue, Aug 25
mild, dry, light wind
The next 4 weekends
plan ahead
Sat 29 – Sun 30 Aug
73° 62°
91% precip chance
Sat 5 – Sun 6 Sep
70° 56°
typical range
Sat 12 – Sun 13 Sep
66° 53°
typical range
Sat 19 – Sun 20 Sep
66° 54°
typical range
30 days — Frankfort
14 forecast + 16 climatology
Sun · Today Sunny
77°57°7%⌄
Wind11 mph NW
Gusts19 mph
UV index8 – High
Precip chance7%
Sunrise07:05
Sunset20:32
Mon · Tomorrow Sunny
71°57°12%⌄
Wind9 mph W
Gusts11 mph
UV index8 – Very high
Precip chance12%
Sunrise07:06
Sunset20:30
Tuesday 25/8 Sunny
73°60°12%⌄
Wind6 mph SE
Gusts17 mph
UV index8 – Very high
Precip chance12%
Sunrise07:06
Sunset20:29
Wednesday 26/8 Sunny
77°63°4.6 mm⌄
Wind11 mph SW
Gusts27 mph
UV index8 – High
Precip chance74%
Sunrise07:07
Sunset20:27
Thursday 27/8 Sunny
77°64°5.5 mm⌄
Wind12 mph SW
Gusts27 mph
UV index7 – High
Precip chance76%
Sunrise07:08
Sunset20:26
Friday 28/8 Sunny
76°65°12%⌄
Wind8 mph NW
Gusts9 mph
UV index6 – High
Precip chance12%
Sunrise07:09
Sunset20:24
Saturday 29/8 Mostly cloudy
73°62°0.6 mm⌄
Wind9 mph SE
Gusts18 mph
UV index6 – High
Precip chance49%
Sunrise07:10
Sunset20:23
Sunday 30/8 Showers
73°62°40.0 mm⌄
Wind8 mph SE
Gusts22 mph
UV index6 – High
Precip chance91%
Sunrise07:11
Sunset20:21
Monday 31/8 Fog
75°64°19%⌄
Wind8 mph NE
Gusts18 mph
UV index6 – High
Precip chance19%
Sunrise07:12
Sunset20:20
Tuesday 1/9 Mostly cloudy
77°63°8.1 mm⌄
Wind11 mph SE
Gusts28 mph
UV index5 – Moderate
Precip chance84%
Sunrise07:13
Sunset20:18
Wednesday 2/9 Showers
82°66°210.1 mm⌄
Wind21 mph N
Gusts34 mph
UV index6 – High
Precip chance88%
Sunrise07:14
Sunset20:16
Thursday 3/9 Mostly cloudy
78°72°3.6 mm⌄
Wind15 mph SW
Gusts36 mph
UV index6 – High
Precip chance85%
Sunrise07:15
Sunset20:15
Friday 4/9 Fog
75°65°12.9 mm⌄
Wind11 mph N
Gusts21 mph
UV index5 – Moderate
Precip chance93%
Sunrise07:16
Sunset20:13
Saturday 5/9 Sunny
70°60°0.5 mm⌄
Wind11 mph N
Gusts16 mph
UV index6 – High
Precip chance37%
Sunrise07:17
Sunset20:12
Sunday 6/9 Rain (climatological)
67°56°40.0 mm⌄
Day≈62–73°
Night≈51–61°
Precip≈11.8 in / September
(climatological)Typical range for these dates · 1991–2020
Monday 7/9 Partly cloudy (climatological)
73°59°20%⌄
Day≈68–78°
Night≈54–65°
Precip≈11.8 in / September
(climatological)Typical range for these dates · 1991–2020
Tuesday 8/9 Partly cloudy (climatological)
74°60°20%⌄
Day≈69–80°
Night≈55–65°
Precip≈11.8 in / September
(climatological)Typical range for these dates · 1991–2020
Wednesday 9/9 Rain (climatological)
73°59°40.0 mm⌄
Day≈67–78°
Night≈54–65°
Precip≈11.8 in / September
(climatological)Typical range for these dates · 1991–2020
Thursday 10/9 Partly cloudy (climatological)
64°54°20%⌄
Day≈58–69°
Night≈48–59°
Precip≈11.8 in / September
(climatological)Typical range for these dates · 1991–2020
Friday 11/9 Partly cloudy (climatological)
66°55°20%⌄
Day≈61–71°
Night≈50–60°
Precip≈11.8 in / September
(climatological)Typical range for these dates · 1991–2020
Saturday 12/9 Rain (climatological)
62°53°31.0 mm⌄
Day≈56–67°
Night≈47–58°
Precip≈11.8 in / September
(climatological)Typical range for these dates · 1991–2020
Sunday 13/9 Partly cloudy (climatological)
66°55°20%⌄
Day≈61–72°
Night≈50–61°
Precip≈11.8 in / September
(climatological)Typical range for these dates · 1991–2020
Monday 14/9 Partly cloudy (climatological)
73°59°20%⌄
Day≈68–78°
Night≈54–65°
Precip≈11.8 in / September
(climatological)Typical range for these dates · 1991–2020
Tuesday 15/9 Rain (climatological)
72°59°19.0 mm⌄
Day≈66–77°
Night≈53–64°
Precip≈11.8 in / September
(climatological)Typical range for these dates · 1991–2020
Wednesday 16/9 Partly cloudy (climatological)
70°57°20%⌄
Day≈64–75°
Night≈52–63°
Precip≈11.8 in / September
(climatological)Typical range for these dates · 1991–2020
Thursday 17/9 Partly cloudy (climatological)
67°55°20%⌄
Day≈61–72°
Night≈50–61°
Precip≈11.8 in / September
(climatological)Typical range for these dates · 1991–2020
Friday 18/9 Rain (climatological)
63°53°36.0 mm⌄
Day≈58–69°
Night≈48–59°
Precip≈11.8 in / September
(climatological)Typical range for these dates · 1991–2020
Saturday 19/9 Partly cloudy (climatological)
64°54°20%⌄
Day≈58–69°
Night≈48–59°
Precip≈11.8 in / September
(climatological)Typical range for these dates · 1991–2020
Sunday 20/9 Partly cloudy (climatological)
66°55°20%⌄
Day≈60–71°
Night≈50–60°
Precip≈11.8 in / September
(climatological)Typical range for these dates · 1991–2020
Monday 21/9 Rain (climatological)
71°58°24.0 mm⌄
Day≈66–77°
Night≈53–64°
Precip≈11.8 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 Frankfort, 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.