Rio Vista · first 14 days — live forecast · rest of month — climate corridor
🗺️ 14-day forecast map
Rio Vista & 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°
Wed, Sep 16
Coldest night
53°
Mon, Sep 7
Days with precip
2 / 14
of 14 forecast days
Nicest day
Wed, Sep 9
mild, dry, light wind
The next 4 weekends
plan ahead
Sat 5 – Sun 6 Sep
83° 53°
2% precip chance
Sat 12 – Sun 13 Sep
84° 56°
7% precip chance
Sat 19 – Sun 20 Sep
89° 61°
typical range
Sat 26 – Sun 27 Sep
87° 61°
typical range
30 days — Rio Vista
14 forecast + 16 climatology
Thu · Today Sunny
76°59°9%⌄
Wind18 mph W
Gusts24 mph
UV index7 – High
Precip chance9%
Sunrise06:38
Sunset19:33
Fri · Tomorrow Sunny
80°57°3%⌄
Wind15 mph SW
Gusts26 mph
UV index7 – High
Precip chance3%
Sunrise06:39
Sunset19:32
Saturday 5/9 Sunny
83°53°2%⌄
Wind15 mph W
Gusts27 mph
UV index7 – High
Precip chance2%
Sunrise06:40
Sunset19:30
Sunday 6/9 Sunny
80°57°2%⌄
Wind19 mph SW
Gusts29 mph
UV index7 – High
Precip chance2%
Sunrise06:40
Sunset19:29
Monday 7/9 Sunny
86°53°2%⌄
Wind14 mph SW
Gusts26 mph
UV index7 – High
Precip chance2%
Sunrise06:41
Sunset19:27
Tuesday 8/9 Mostly cloudy
81°57°6%⌄
Wind18 mph SW
Gusts29 mph
UV index7 – High
Precip chance6%
Sunrise06:42
Sunset19:26
Wednesday 9/9 Mostly cloudy
76°56°10%⌄
Wind15 mph SW
Gusts27 mph
UV index5 – Moderate
Precip chance10%
Sunrise06:43
Sunset19:24
Thursday 10/9 Mostly cloudy
84°66°4.3 mm⌄
Wind13 mph NE
Gusts19 mph
UV index6 – High
Precip chance64%
Sunrise06:44
Sunset19:23
Friday 11/9 Showers
67°63°3.5 mm⌄
Wind14 mph SE
Gusts25 mph
UV index4 – Moderate
Precip chance78%
Sunrise06:45
Sunset19:21
Saturday 12/9 Sunny
78°58°7%⌄
Wind17 mph SW
Gusts26 mph
UV index7 – High
Precip chance7%
Sunrise06:46
Sunset19:20
Sunday 13/9 Sunny
84°56°3%⌄
Wind14 mph SW
Gusts24 mph
UV index7 – High
Precip chance3%
Sunrise06:46
Sunset19:18
Monday 14/9 Sunny
92°60°1%⌄
Wind12 mph SW
Gusts23 mph
UV index8 – Very high
Precip chance1%
Sunrise06:47
Sunset19:16
Tuesday 15/9 Sunny
94°64°1%⌄
Wind13 mph SW
Gusts23 mph
UV index8 – Very high
Precip chance1%
Sunrise06:48
Sunset19:15
Wednesday 16/9 Sunny
101°67°0%⌄
Wind11 mph SW
Gusts23 mph
UV index9 – Very high
Precip chance0%
Sunrise06:49
Sunset19:13
Thursday 17/9 Light rain (climatological)
85°60°1.6 mm⌄
Day≈80–91°
Night≈55–66°
Precip≈0.7 in / September
(climatological)Typical range for these dates · 1991–2020
Friday 18/9 Partly cloudy (climatological)
88°62°20%⌄
Day≈82–93°
Night≈56–67°
Precip≈0.7 in / September
(climatological)Typical range for these dates · 1991–2020
Saturday 19/9 Partly cloudy (climatological)
89°63°20%⌄
Day≈84–95°
Night≈57–68°
Precip≈0.7 in / September
(climatological)Typical range for these dates · 1991–2020
Sunday 20/9 Light rain (climatological)
87°61°1.8 mm⌄
Day≈82–93°
Night≈56–67°
Precip≈0.7 in / September
(climatological)Typical range for these dates · 1991–2020
Monday 21/9 Partly cloudy (climatological)
80°57°20%⌄
Day≈74–85°
Night≈51–62°
Precip≈0.7 in / September
(climatological)Typical range for these dates · 1991–2020
Tuesday 22/9 Partly cloudy (climatological)
80°57°20%⌄
Day≈75–85°
Night≈52–62°
Precip≈0.7 in / September
(climatological)Typical range for these dates · 1991–2020
Wednesday 23/9 Light rain (climatological)
78°56°1.4 mm⌄
Day≈73–83°
Night≈50–61°
Precip≈0.7 in / September
(climatological)Typical range for these dates · 1991–2020
Thursday 24/9 Partly cloudy (climatological)
83°59°20%⌄
Day≈78–89°
Night≈53–64°
Precip≈0.7 in / September
(climatological)Typical range for these dates · 1991–2020
Friday 25/9 Partly cloudy (climatological)
88°62°20%⌄
Day≈83–93°
Night≈56–67°
Precip≈0.7 in / September
(climatological)Typical range for these dates · 1991–2020
Saturday 26/9 Light rain (climatological)
87°61°1.8 mm⌄
Day≈81–92°
Night≈56–66°
Precip≈0.7 in / September
(climatological)Typical range for these dates · 1991–2020
Sunday 27/9 Partly cloudy (climatological)
87°61°20%⌄
Day≈82–92°
Night≈56–67°
Precip≈0.7 in / September
(climatological)Typical range for these dates · 1991–2020
Monday 28/9 Partly cloudy (climatological)
78°56°20%⌄
Day≈73–84°
Night≈51–61°
Precip≈0.7 in / September
(climatological)Typical range for these dates · 1991–2020
Tuesday 29/9 Light rain (climatological)
80°57°1.0 mm⌄
Day≈74–85°
Night≈51–62°
Precip≈0.7 in / September
(climatological)Typical range for these dates · 1991–2020
Wednesday 30/9 Partly cloudy (climatological)
81°58°20%⌄
Day≈76–86°
Night≈52–63°
Precip≈0.7 in / September
(climatological)Typical range for these dates · 1991–2020
Thursday 1/10 Partly cloudy (climatological)
73°49°20%⌄
Day≈68–78°
Night≈44–55°
Precip≈0.7 in / October
(climatological)Typical range for these dates · 1991–2020
Friday 2/10 Light rain (climatological)
73°50°1.9 mm⌄
Day≈68–79°
Night≈44–55°
Precip≈0.7 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 Rio Vista, 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.