Saint Joseph · first 14 days — live forecast · rest of month — climate corridor
🗺️ 14-day forecast map
Saint Joseph & 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
110°
Sun, Aug 30
Coldest night
51°
Thu, Sep 10
Days with precip
5 / 14
of 14 forecast days
Nicest day
Fri, Aug 28
mild, dry, light wind
The next 4 weekends
plan ahead
Sat 29 – Sun 30 Aug
110° 68°
36% precip chance
Sat 5 – Sun 6 Sep
104° 73°
70% precip chance
Sat 12 – Sun 13 Sep
97° 67°
typical range
Sat 19 – Sun 20 Sep
95° 68°
typical range
30 days — Saint Joseph
14 forecast + 16 climatology
Fri · Today Sunny
91°60°6%⌄
Wind13 mph SE
Gusts31 mph
UV index8 – Very high
Precip chance6%
Sunrise06:43
Sunset19:57
Sat · Tomorrow Mostly cloudy
102°68°17%⌄
Wind21 mph S
Gusts39 mph
UV index9 – Very high
Precip chance17%
Sunrise06:44
Sunset19:55
Sunday 30/8 Mostly cloudy
110°72°0.4 mm⌄
Wind21 mph SW
Gusts42 mph
UV index10 – Very high
Precip chance36%
Sunrise06:45
Sunset19:54
Monday 31/8 Sunny
110°82°2%⌄
Wind18 mph SW
Gusts38 mph
UV index10 – Very high
Precip chance2%
Sunrise06:46
Sunset19:52
Tuesday 1/9 Sunny
107°79°1%⌄
Wind19 mph S
Gusts40 mph
UV index10 – Very high
Precip chance1%
Sunrise06:47
Sunset19:51
Wednesday 2/9 Sunny
108°81°1.1 mm⌄
Wind20 mph S
Gusts38 mph
UV index10 – Very high
Precip chance57%
Sunrise06:48
Sunset19:49
Thursday 3/9 Sunny
107°81°0.1 mm⌄
Wind15 mph S
Gusts31 mph
UV index10 – Very high
Precip chance17%
Sunrise06:49
Sunset19:48
Friday 4/9 Partly cloudy
107°84°0.1 mm⌄
Wind18 mph S
Gusts38 mph
UV index9 – Very high
Precip chance17%
Sunrise06:50
Sunset19:46
Saturday 5/9 Showers
104°75°2.8 mm⌄
Wind14 mph SW
Gusts19 mph
UV index9 – Very high
Precip chance57%
Sunrise06:51
Sunset19:44
Sunday 6/9 Mostly cloudy
97°73°7.6 mm⌄
Wind12 mph NE
Gusts25 mph
UV index8 – Very high
Precip chance70%
Sunrise06:52
Sunset19:43
Monday 7/9 Sunny
95°69°5%⌄
Wind12 mph E
Gusts25 mph
UV index8 – Very high
Precip chance5%
Sunrise06:53
Sunset19:41
Tuesday 8/9 Mostly cloudy
78°67°0.9 mm⌄
Wind12 mph NE
Gusts24 mph
UV index6 – High
Precip chance49%
Sunrise06:54
Sunset19:40
Wednesday 9/9 Showers
83°56°32.4 mm⌄
Wind18 mph NE
Gusts31 mph
UV index6 – High
Precip chance91%
Sunrise06:54
Sunset19:38
Thursday 10/9 Mostly cloudy
66°51°4.4 mm⌄
Wind18 mph N
Gusts33 mph
UV index4 – Moderate
Precip chance75%
Sunrise06:55
Sunset19:36
Friday 11/9 Rain (climatological)
89°64°11.9 mm⌄
Day≈83–94°
Night≈59–70°
Precip≈4.3 in / September
(climatological)Typical range for these dates · 1991–2020
Saturday 12/9 Partly cloudy (climatological)
93°67°20%⌄
Day≈87–98°
Night≈61–72°
Precip≈4.3 in / September
(climatological)Typical range for these dates · 1991–2020
Sunday 13/9 Partly cloudy (climatological)
97°69°20%⌄
Day≈92–103°
Night≈64–75°
Precip≈4.3 in / September
(climatological)Typical range for these dates · 1991–2020
Monday 14/9 Rain (climatological)
90°65°11.9 mm⌄
Day≈84–95°
Night≈59–70°
Precip≈4.3 in / September
(climatological)Typical range for these dates · 1991–2020
Tuesday 15/9 Partly cloudy (climatological)
88°64°20%⌄
Day≈83–93°
Night≈58–69°
Precip≈4.3 in / September
(climatological)Typical range for these dates · 1991–2020
Wednesday 16/9 Partly cloudy (climatological)
86°62°20%⌄
Day≈80–91°
Night≈57–68°
Precip≈4.3 in / September
(climatological)Typical range for these dates · 1991–2020
Thursday 17/9 Rain (climatological)
85°62°9.0 mm⌄
Day≈80–91°
Night≈57–67°
Precip≈4.3 in / September
(climatological)Typical range for these dates · 1991–2020
Friday 18/9 Partly cloudy (climatological)
89°64°20%⌄
Day≈83–94°
Night≈59–70°
Precip≈4.3 in / September
(climatological)Typical range for these dates · 1991–2020
Saturday 19/9 Partly cloudy (climatological)
95°68°20%⌄
Day≈89–100°
Night≈62–73°
Precip≈4.3 in / September
(climatological)Typical range for these dates · 1991–2020
Sunday 20/9 Rain (climatological)
95°68°7.2 mm⌄
Day≈90–100°
Night≈63–73°
Precip≈4.3 in / September
(climatological)Typical range for these dates · 1991–2020
Monday 21/9 Partly cloudy (climatological)
94°67°20%⌄
Day≈88–99°
Night≈62–73°
Precip≈4.3 in / September
(climatological)Typical range for these dates · 1991–2020
Tuesday 22/9 Partly cloudy (climatological)
87°63°20%⌄
Day≈82–93°
Night≈58–69°
Precip≈4.3 in / September
(climatological)Typical range for these dates · 1991–2020
Wednesday 23/9 Rain (climatological)
85°62°7.9 mm⌄
Day≈80–91°
Night≈57–68°
Precip≈4.3 in / September
(climatological)Typical range for these dates · 1991–2020
Thursday 24/9 Partly cloudy (climatological)
87°64°20%⌄
Day≈82–93°
Night≈58–69°
Precip≈4.3 in / September
(climatological)Typical range for these dates · 1991–2020
Friday 25/9 Partly cloudy (climatological)
88°64°20%⌄
Day≈82–93°
Night≈58–69°
Precip≈4.3 in / September
(climatological)Typical range for these dates · 1991–2020
Saturday 26/9 Rain (climatological)
94°67°10.8 mm⌄
Day≈89–100°
Night≈62–73°
Precip≈4.3 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 Saint Joseph, 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.