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
39°
Mon, Sep 7
Coldest night
12°
Sat, Sep 12
Days with precip
4 / 14
of 14 forecast days
Nicest day
Mon, Sep 14
mild, dry, light wind
The next 4 weekends
plan ahead
Sat 5 – Sun 6 Sep
33° 19°
43% precip chance
Sat 12 – Sun 13 Sep
32° 12°
66% precip chance
Sat 19 – Sun 20 Sep
30° 15°
typical range
Sat 26 – Sun 27 Sep
30° 15°
typical range
30 days — Saint Joseph
14 forecast + 16 climatology
Tue · Today Mostly cloudy
33°14°1.9 mm⌄
Wind12 mph W
Gusts16 mph
UV index6 – Moderate
Precip chance57%
Sunrise06:38
Sunset19:55
Wed · Tomorrow Sunny
30°18°2.0 mm⌄
Wind8 mph N
Gusts19 mph
UV index7 – High
Precip chance57%
Sunrise06:39
Sunset19:53
Thursday 3/9 Mostly cloudy
33°19°1.7 mm⌄
Wind13 mph E
Gusts34 mph
UV index7 – High
Precip chance57%
Sunrise06:41
Sunset19:52
Friday 4/9 Thunderstorms
35°21°0.2 mm⌄
Wind14 mph E
Gusts26 mph
UV index6 – High
Precip chance22%
Sunrise06:42
Sunset19:50
Saturday 5/9 Sunny
33°20°0.2 mm⌄
Wind13 mph SE
Gusts27 mph
UV index8 – Very high
Precip chance17%
Sunrise06:43
Sunset19:48
Sunday 6/9 Mostly cloudy
31°19°0.6 mm⌄
Wind20 mph SE
Gusts37 mph
UV index8 – Very high
Precip chance43%
Sunrise06:44
Sunset19:46
Monday 7/9 Mostly cloudy
39°21°5%⌄
Wind17 mph SE
Gusts38 mph
UV index9 – Very high
Precip chance5%
Sunrise06:46
Sunset19:44
Tuesday 8/9 Sunny
36°18°3%⌄
Wind13 mph NE
Gusts25 mph
UV index9 – Very high
Precip chance3%
Sunrise06:47
Sunset19:42
Wednesday 9/9 Sunny
31°19°5%⌄
Wind19 mph NW
Gusts24 mph
UV index8 – Very high
Precip chance5%
Sunrise06:48
Sunset19:40
Thursday 10/9 Sunny
27°14°1%⌄
Wind21 mph NW
Gusts29 mph
UV index7 – High
Precip chance1%
Sunrise06:49
Sunset19:38
Friday 11/9 Sunny
29°14°1%⌄
Wind13 mph NW
Gusts26 mph
UV index7 – High
Precip chance1%
Sunrise06:50
Sunset19:36
Saturday 12/9 Sunny
31°12°3%⌄
Wind15 mph SE
Gusts36 mph
UV index7 – High
Precip chance3%
Sunrise06:52
Sunset19:34
Sunday 13/9 Showers
32°17°9.4 mm⌄
Wind25 mph SW
Gusts40 mph
UV index7 – High
Precip chance66%
Sunrise06:53
Sunset19:33
Monday 14/9 Sunny
22°13°1%⌄
Wind22 mph NW
Gusts35 mph
UV index6 – High
Precip chance1%
Sunrise06:54
Sunset19:31
Tuesday 15/9 Rain (climatological)
31°17°3.2 mm⌄
Day≈28–34°
Night≈14–20°
Precip≈1.4 in / September
(climatological)Typical range for these dates · 1991–2020
Wednesday 16/9 Partly cloudy (climatological)
33°18°20%⌄
Day≈30–36°
Night≈15–21°
Precip≈1.4 in / September
(climatological)Typical range for these dates · 1991–2020
Thursday 17/9 Partly cloudy (climatological)
35°19°20%⌄
Day≈32–38°
Night≈16–22°
Precip≈1.4 in / September
(climatological)Typical range for these dates · 1991–2020
Friday 18/9 Rain (climatological)
31°17°2.5 mm⌄
Day≈28–34°
Night≈14–20°
Precip≈1.4 in / September
(climatological)Typical range for these dates · 1991–2020
Saturday 19/9 Partly cloudy (climatological)
30°16°20%⌄
Day≈27–33°
Night≈13–19°
Precip≈1.4 in / September
(climatological)Typical range for these dates · 1991–2020
Sunday 20/9 Partly cloudy (climatological)
29°15°20%⌄
Day≈26–32°
Night≈12–18°
Precip≈1.4 in / September
(climatological)Typical range for these dates · 1991–2020
Monday 21/9 Rain (climatological)
28°15°4.7 mm⌄
Day≈25–31°
Night≈12–18°
Precip≈1.4 in / September
(climatological)Typical range for these dates · 1991–2020
Tuesday 22/9 Partly cloudy (climatological)
30°16°20%⌄
Day≈27–33°
Night≈13–19°
Precip≈1.4 in / September
(climatological)Typical range for these dates · 1991–2020
Wednesday 23/9 Partly cloudy (climatological)
34°18°20%⌄
Day≈31–37°
Night≈15–21°
Precip≈1.4 in / September
(climatological)Typical range for these dates · 1991–2020
Thursday 24/9 Rain (climatological)
34°18°3.5 mm⌄
Day≈31–37°
Night≈15–21°
Precip≈1.4 in / September
(climatological)Typical range for these dates · 1991–2020
Friday 25/9 Partly cloudy (climatological)
33°18°20%⌄
Day≈30–36°
Night≈15–21°
Precip≈1.4 in / September
(climatological)Typical range for these dates · 1991–2020
Saturday 26/9 Partly cloudy (climatological)
30°16°20%⌄
Day≈27–33°
Night≈13–19°
Precip≈1.4 in / September
(climatological)Typical range for these dates · 1991–2020
Sunday 27/9 Rain (climatological)
28°15°2.1 mm⌄
Day≈25–31°
Night≈12–18°
Precip≈1.4 in / September
(climatological)Typical range for these dates · 1991–2020
Monday 28/9 Partly cloudy (climatological)
29°15°20%⌄
Day≈26–32°
Night≈12–18°
Precip≈1.4 in / September
(climatological)Typical range for these dates · 1991–2020
Tuesday 29/9 Partly cloudy (climatological)
32°17°20%⌄
Day≈29–35°
Night≈14–20°
Precip≈1.4 in / September
(climatological)Typical range for these dates · 1991–2020
Wednesday 30/9 Rain (climatological)
33°18°4.4 mm⌄
Day≈30–36°
Night≈15–21°
Precip≈1.4 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.