San Joaquin · first 14 days — live forecast · rest of month — climate corridor
🗺️ 14-day forecast map
San Joaquin & 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
105°
Tue, Sep 15
Coldest night
58°
Mon, Sep 7
Days with precip
0 / 14
of 14 forecast days
Nicest day
Wed, Sep 16
mild, dry, light wind
The next 4 weekends
plan ahead
Sat 5 – Sun 6 Sep
90° 59°
1% precip chance
Sat 12 – Sun 13 Sep
94° 60°
1% precip chance
Sat 19 – Sun 20 Sep
98° 64°
typical range
Sat 26 – Sun 27 Sep
96° 64°
typical range
30 days — San Joaquin
14 forecast + 16 climatology
Fri · Today Sunny
85°59°3%⌄
Wind13 mph NW
Gusts26 mph
UV index7 – High
Precip chance3%
Sunrise06:34
Sunset19:25
Sat · Tomorrow Sunny
90°59°1%⌄
Wind10 mph NW
Gusts22 mph
UV index8 – High
Precip chance1%
Sunrise06:35
Sunset19:23
Sunday 6/9 Sunny
89°59°1%⌄
Wind12 mph NW
Gusts24 mph
UV index8 – High
Precip chance1%
Sunrise06:36
Sunset19:22
Monday 7/9 Sunny
91°58°1%⌄
Wind8 mph NW
Gusts18 mph
UV index8 – Very high
Precip chance1%
Sunrise06:36
Sunset19:20
Tuesday 8/9 Sunny
100°60°1%⌄
Wind10 mph S
Gusts21 mph
UV index9 – Very high
Precip chance1%
Sunrise06:37
Sunset19:19
Wednesday 9/9 Mostly cloudy
84°66°8%⌄
Wind13 mph NW
Gusts23 mph
UV index6 – High
Precip chance8%
Sunrise06:38
Sunset19:17
Thursday 10/9 Sunny
100°68°6%⌄
Wind11 mph S
Gusts18 mph
UV index8 – Very high
Precip chance6%
Sunrise06:39
Sunset19:16
Friday 11/9 Sunny
95°67°3%⌄
Wind12 mph S
Gusts21 mph
UV index9 – Very high
Precip chance3%
Sunrise06:40
Sunset19:14
Saturday 12/9 Sunny
89°60°1%⌄
Wind11 mph NW
Gusts25 mph
UV index8 – Very high
Precip chance1%
Sunrise06:40
Sunset19:13
Sunday 13/9 Sunny
94°63°1%⌄
Wind11 mph NW
Gusts24 mph
UV index8 – Very high
Precip chance1%
Sunrise06:41
Sunset19:11
Monday 14/9 Sunny
100°67°1%⌄
Wind9 mph NW
Gusts17 mph
UV index9 – Very high
Precip chance1%
Sunrise06:42
Sunset19:10
Tuesday 15/9 Sunny
105°74°0%⌄
Wind8 mph NW
Gusts17 mph
UV index10 – Very high
Precip chance0%
Sunrise06:43
Sunset19:08
Wednesday 16/9 Sunny
87°59°0%⌄
Wind5 mph NW
Gusts14 mph
UV index8 – Very high
Precip chance0%
Sunrise06:43
Sunset19:07
Thursday 17/9 Sunny
91°58°0%⌄
Wind8 mph N
Gusts17 mph
UV index8 – Very high
Precip chance0%
Sunrise06:44
Sunset19:05
Friday 18/9 Light rain (climatological)
90°61°1.2 mm⌄
Day≈85–96°
Night≈56–67°
Precip≈0.6 in / September
(climatological)Typical range for these dates · 1991–2020
Saturday 19/9 Partly cloudy (climatological)
95°64°20%⌄
Day≈89–100°
Night≈58–69°
Precip≈0.6 in / September
(climatological)Typical range for these dates · 1991–2020
Sunday 20/9 Partly cloudy (climatological)
98°66°20%⌄
Day≈92–103°
Night≈60–71°
Precip≈0.6 in / September
(climatological)Typical range for these dates · 1991–2020
Monday 21/9 Light rain (climatological)
93°63°1.1 mm⌄
Day≈88–99°
Night≈58–69°
Precip≈0.6 in / September
(climatological)Typical range for these dates · 1991–2020
Tuesday 22/9 Partly cloudy (climatological)
92°62°20%⌄
Day≈87–97°
Night≈57–68°
Precip≈0.6 in / September
(climatological)Typical range for these dates · 1991–2020
Wednesday 23/9 Partly cloudy (climatological)
90°61°20%⌄
Day≈85–96°
Night≈56–67°
Precip≈0.6 in / September
(climatological)Typical range for these dates · 1991–2020
Thursday 24/9 Light rain (climatological)
87°59°0.9 mm⌄
Day≈81–92°
Night≈54–65°
Precip≈0.6 in / September
(climatological)Typical range for these dates · 1991–2020
Friday 25/9 Partly cloudy (climatological)
91°62°20%⌄
Day≈86–97°
Night≈57–67°
Precip≈0.6 in / September
(climatological)Typical range for these dates · 1991–2020
Saturday 26/9 Partly cloudy (climatological)
94°64°20%⌄
Day≈89–99°
Night≈58–69°
Precip≈0.6 in / September
(climatological)Typical range for these dates · 1991–2020
Sunday 27/9 Light rain (climatological)
96°65°1.2 mm⌄
Day≈91–101°
Night≈59–70°
Precip≈0.6 in / September
(climatological)Typical range for these dates · 1991–2020
Monday 28/9 Partly cloudy (climatological)
97°65°20%⌄
Day≈92–103°
Night≈60–71°
Precip≈0.6 in / September
(climatological)Typical range for these dates · 1991–2020
Tuesday 29/9 Partly cloudy (climatological)
90°61°20%⌄
Day≈85–96°
Night≈56–67°
Precip≈0.6 in / September
(climatological)Typical range for these dates · 1991–2020
Wednesday 30/9 Light rain (climatological)
87°60°1.4 mm⌄
Day≈82–93°
Night≈54–65°
Precip≈0.6 in / September
(climatological)Typical range for these dates · 1991–2020
Thursday 1/10 Partly cloudy (climatological)
77°50°20%⌄
Day≈71–82°
Night≈45–56°
Precip≈0.6 in / October
(climatological)Typical range for these dates · 1991–2020
Friday 2/10 Partly cloudy (climatological)
82°53°20%⌄
Day≈77–87°
Night≈48–59°
Precip≈0.6 in / October
(climatological)Typical range for these dates · 1991–2020
Saturday 3/10 Light rain (climatological)
88°57°1.5 mm⌄
Day≈82–93°
Night≈51–62°
Precip≈0.6 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 San Joaquin, 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.