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
34°
Sun, Sep 13
Coldest night
12°
Mon, Sep 7
Days with precip
0 / 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
28° 12°
3% precip chance
Sat 12 – Sun 13 Sep
34° 13°
3% precip chance
Sat 19 – Sun 20 Sep
33° 15°
typical range
Sat 26 – Sun 27 Sep
32° 15°
typical range
30 days — Rio Vista
14 forecast + 16 climatology
Fri · Today Sunny
26°13°3%⌄
Wind16 mph W
Gusts26 mph
UV index7 – High
Precip chance3%
Sunrise06:39
Sunset19:32
Sat · Tomorrow Sunny
28°12°2%⌄
Wind17 mph SW
Gusts27 mph
UV index7 – High
Precip chance2%
Sunrise06:40
Sunset19:30
Sunday 6/9 Sunny
27°13°3%⌄
Wind19 mph SW
Gusts29 mph
UV index7 – High
Precip chance3%
Sunrise06:40
Sunset19:29
Monday 7/9 Sunny
30°12°2%⌄
Wind14 mph SW
Gusts26 mph
UV index8 – Very high
Precip chance2%
Sunrise06:41
Sunset19:27
Tuesday 8/9 Mostly cloudy
27°14°7%⌄
Wind20 mph SW
Gusts31 mph
UV index7 – High
Precip chance7%
Sunrise06:42
Sunset19:26
Wednesday 9/9 Sunny
24°14°8%⌄
Wind17 mph SW
Gusts25 mph
UV index6 – High
Precip chance8%
Sunrise06:43
Sunset19:24
Thursday 10/9 Sunny
27°13°4%⌄
Wind18 mph SW
Gusts28 mph
UV index7 – High
Precip chance4%
Sunrise06:44
Sunset19:23
Friday 11/9 Mostly cloudy
27°13°9%⌄
Wind17 mph SW
Gusts25 mph
UV index6 – High
Precip chance9%
Sunrise06:45
Sunset19:21
Saturday 12/9 Sunny
31°13°3%⌄
Wind13 mph W
Gusts24 mph
UV index8 – Very high
Precip chance3%
Sunrise06:46
Sunset19:20
Sunday 13/9 Sunny
34°17°1%⌄
Wind15 mph W
Gusts28 mph
UV index8 – Very high
Precip chance1%
Sunrise06:46
Sunset19:18
Monday 14/9 Sunny
32°16°2%⌄
Wind18 mph SW
Gusts30 mph
UV index8 – Very high
Precip chance2%
Sunrise06:47
Sunset19:16
Tuesday 15/9 Sunny
29°15°3%⌄
Wind15 mph W
Gusts28 mph
UV index7 – High
Precip chance3%
Sunrise06:48
Sunset19:15
Wednesday 16/9 Sunny
33°17°0%⌄
Wind20 mph SW
Gusts37 mph
UV index8 – Very high
Precip chance0%
Sunrise06:49
Sunset19:13
Thursday 17/9 Sunny
34°14°0%⌄
Wind14 mph W
Gusts25 mph
UV index8 – Very high
Precip chance0%
Sunrise06:50
Sunset19:12
Friday 18/9 Light rain (climatological)
31°15°1.5 mm⌄
Day≈28–34°
Night≈12–18°
Precip≈0.6 in / September
(climatological)Typical range for these dates · 1991–2020
Saturday 19/9 Partly cloudy (climatological)
32°15°20%⌄
Day≈29–35°
Night≈12–18°
Precip≈0.6 in / September
(climatological)Typical range for these dates · 1991–2020
Sunday 20/9 Partly cloudy (climatological)
33°16°20%⌄
Day≈30–36°
Night≈13–19°
Precip≈0.6 in / September
(climatological)Typical range for these dates · 1991–2020
Monday 21/9 Light rain (climatological)
32°15°1.6 mm⌄
Day≈29–35°
Night≈12–18°
Precip≈0.6 in / September
(climatological)Typical range for these dates · 1991–2020
Tuesday 22/9 Partly cloudy (climatological)
27°13°20%⌄
Day≈24–30°
Night≈10–16°
Precip≈0.6 in / September
(climatological)Typical range for these dates · 1991–2020
Wednesday 23/9 Partly cloudy (climatological)
28°13°20%⌄
Day≈25–31°
Night≈10–16°
Precip≈0.6 in / September
(climatological)Typical range for these dates · 1991–2020
Thursday 24/9 Light rain (climatological)
26°12°1.2 mm⌄
Day≈23–29°
Night≈9–15°
Precip≈0.6 in / September
(climatological)Typical range for these dates · 1991–2020
Friday 25/9 Partly cloudy (climatological)
29°14°20%⌄
Day≈26–32°
Night≈11–17°
Precip≈0.6 in / September
(climatological)Typical range for these dates · 1991–2020
Saturday 26/9 Partly cloudy (climatological)
32°16°20%⌄
Day≈29–35°
Night≈13–19°
Precip≈0.6 in / September
(climatological)Typical range for these dates · 1991–2020
Sunday 27/9 Light rain (climatological)
31°15°1.6 mm⌄
Day≈28–34°
Night≈12–18°
Precip≈0.6 in / September
(climatological)Typical range for these dates · 1991–2020
Monday 28/9 Partly cloudy (climatological)
31°15°20%⌄
Day≈28–34°
Night≈12–18°
Precip≈0.6 in / September
(climatological)Typical range for these dates · 1991–2020
Tuesday 29/9 Partly cloudy (climatological)
27°12°20%⌄
Day≈24–30°
Night≈9–15°
Precip≈0.6 in / September
(climatological)Typical range for these dates · 1991–2020
Wednesday 30/9 Light rain (climatological)
27°13°0.9 mm⌄
Day≈24–30°
Night≈10–16°
Precip≈0.6 in / September
(climatological)Typical range for these dates · 1991–2020
Thursday 1/10 Partly cloudy (climatological)
22°8°20%⌄
Day≈19–25°
Night≈5–11°
Precip≈0.6 in / October
(climatological)Typical range for these dates · 1991–2020
Friday 2/10 Partly cloudy (climatological)
24°9°20%⌄
Day≈21–27°
Night≈6–12°
Precip≈0.6 in / October
(climatological)Typical range for these dates · 1991–2020
Saturday 3/10 Light rain (climatological)
24°9°1.7 mm⌄
Day≈21–27°
Night≈6–12°
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 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.