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
101°
Sat, Sep 5
Coldest night
46°
Tue, Sep 8
Days with precip
8 / 14
of 14 forecast days
Nicest day
Sat, Sep 12
mild, dry, light wind
The next 4 weekends
plan ahead
Sat 5 – Sun 6 Sep
101° 67°
70% precip chance
Sat 12 – Sun 13 Sep
70° 53°
65% precip chance
Sat 19 – Sun 20 Sep
75° 55°
typical range
Sat 26 – Sun 27 Sep
74° 54°
typical range
30 days — Saint Joseph
14 forecast + 16 climatology
Tue · Today Mostly cloudy
91°57°8%⌄
Wind11 mph W
Gusts18 mph
UV index6 – Moderate
Precip chance8%
Sunrise06:38
Sunset19:55
Wed · Tomorrow Sunny
90°61°0.1 mm⌄
Wind14 mph S
Gusts24 mph
UV index7 – High
Precip chance17%
Sunrise06:39
Sunset19:53
Thursday 3/9 Sunny
91°66°3.7 mm⌄
Wind13 mph E
Gusts34 mph
UV index7 – High
Precip chance60%
Sunrise06:41
Sunset19:52
Friday 4/9 Thunderstorms
96°66°1.2 mm⌄
Wind14 mph E
Gusts31 mph
UV index6 – High
Precip chance57%
Sunrise06:42
Sunset19:50
Saturday 5/9 Sunny
101°67°12.8 mm⌄
Wind20 mph NW
Gusts38 mph
UV index9 – Very high
Precip chance70%
Sunrise06:43
Sunset19:48
Sunday 6/9 Mostly cloudy
87°69°9%⌄
Wind13 mph NE
Gusts28 mph
UV index8 – Very high
Precip chance9%
Sunrise06:44
Sunset19:46
Monday 7/9 Mostly cloudy
66°48°22.7 mm⌄
Wind19 mph E
Gusts34 mph
UV index3 – Moderate
Precip chance88%
Sunrise06:46
Sunset19:44
Tuesday 8/9 Mostly cloudy
52°46°5.4 mm⌄
Wind15 mph E
Gusts33 mph
UV index3 – Moderate
Precip chance89%
Sunrise06:47
Sunset19:42
Wednesday 9/9 Showers
65°51°4.2 mm⌄
Wind10 mph SE
Gusts25 mph
UV index4 – Moderate
Precip chance87%
Sunrise06:48
Sunset19:40
Thursday 10/9 Sunny
73°55°0.6 mm⌄
Wind12 mph W
Gusts28 mph
UV index6 – High
Precip chance39%
Sunrise06:49
Sunset19:38
Friday 11/9 Showers
65°58°3.6 mm⌄
Wind14 mph E
Gusts28 mph
UV index4 – Moderate
Precip chance84%
Sunrise06:50
Sunset19:36
Saturday 12/9 Sunny
70°54°11%⌄
Wind14 mph NW
Gusts32 mph
UV index6 – High
Precip chance11%
Sunrise06:52
Sunset19:34
Sunday 13/9 Sunny
69°53°2.4 mm⌄
Wind13 mph NW
Gusts30 mph
UV index5 – Moderate
Precip chance65%
Sunrise06:53
Sunset19:33
Monday 14/9 Sunny
71°55°1%⌄
Wind22 mph NW
Gusts35 mph
UV index6 – High
Precip chance1%
Sunrise06:54
Sunset19:31
Tuesday 15/9 Rain (climatological)
77°57°11.1 mm⌄
Day≈72–83°
Night≈52–63°
Precip≈4.8 in / September
(climatological)Typical range for these dates · 1991–2020
Wednesday 16/9 Partly cloudy (climatological)
79°59°20%⌄
Day≈74–85°
Night≈53–64°
Precip≈4.8 in / September
(climatological)Typical range for these dates · 1991–2020
Thursday 17/9 Partly cloudy (climatological)
83°61°20%⌄
Day≈78–89°
Night≈56–67°
Precip≈4.8 in / September
(climatological)Typical range for these dates · 1991–2020
Friday 18/9 Rain (climatological)
77°57°8.6 mm⌄
Day≈71–82°
Night≈52–63°
Precip≈4.8 in / September
(climatological)Typical range for these dates · 1991–2020
Saturday 19/9 Partly cloudy (climatological)
75°56°20%⌄
Day≈70–81°
Night≈51–62°
Precip≈4.8 in / September
(climatological)Typical range for these dates · 1991–2020
Sunday 20/9 Partly cloudy (climatological)
73°55°20%⌄
Day≈67–78°
Night≈49–60°
Precip≈4.8 in / September
(climatological)Typical range for these dates · 1991–2020
Monday 21/9 Rain (climatological)
71°54°16.4 mm⌄
Day≈66–77°
Night≈49–59°
Precip≈4.8 in / September
(climatological)Typical range for these dates · 1991–2020
Tuesday 22/9 Partly cloudy (climatological)
75°56°20%⌄
Day≈70–80°
Night≈51–62°
Precip≈4.8 in / September
(climatological)Typical range for these dates · 1991–2020
Wednesday 23/9 Partly cloudy (climatological)
82°60°20%⌄
Day≈76–87°
Night≈55–65°
Precip≈4.8 in / September
(climatological)Typical range for these dates · 1991–2020
Thursday 24/9 Rain (climatological)
82°60°12.3 mm⌄
Day≈77–87°
Night≈55–66°
Precip≈4.8 in / September
(climatological)Typical range for these dates · 1991–2020
Friday 25/9 Partly cloudy (climatological)
81°60°20%⌄
Day≈76–86°
Night≈54–65°
Precip≈4.8 in / September
(climatological)Typical range for these dates · 1991–2020
Saturday 26/9 Partly cloudy (climatological)
74°56°20%⌄
Day≈69–80°
Night≈50–61°
Precip≈4.8 in / September
(climatological)Typical range for these dates · 1991–2020
Sunday 27/9 Rain (climatological)
71°54°7.4 mm⌄
Day≈66–77°
Night≈48–59°
Precip≈4.8 in / September
(climatological)Typical range for these dates · 1991–2020
Monday 28/9 Partly cloudy (climatological)
73°55°20%⌄
Day≈67–78°
Night≈49–60°
Precip≈4.8 in / September
(climatological)Typical range for these dates · 1991–2020
Tuesday 29/9 Partly cloudy (climatological)
78°58°20%⌄
Day≈72–83°
Night≈52–63°
Precip≈4.8 in / September
(climatological)Typical range for these dates · 1991–2020
Wednesday 30/9 Rain (climatological)
81°60°15.6 mm⌄
Day≈76–86°
Night≈54–65°
Precip≈4.8 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 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.