Graton · first 14 days — live forecast · rest of month — climate corridor
🗺️ 14-day forecast map
Graton & 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
91°
Mon, Sep 14
Coldest night
49°
Fri, Sep 4
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
78° 51°
3% precip chance
Sat 12 – Sun 13 Sep
88° 54°
8% precip chance
Sat 19 – Sun 20 Sep
81° 54°
typical range
Sat 26 – Sun 27 Sep
79° 52°
typical range
30 days — Graton
14 forecast + 16 climatology
Wed · Today Sunny
78°55°9.1 mm⌄
Wind11 mph SW
Gusts13 mph
UV index7 – High
Precip chance77%
Sunrise06:41
Sunset19:40
Thu · Tomorrow Mostly cloudy
65°55°5.0 mm⌄
Wind6 mph SW
Gusts15 mph
UV index1 – Low
Precip chance84%
Sunrise06:42
Sunset19:38
Friday 4/9 Sunny
76°49°4%⌄
Wind12 mph SW
Gusts23 mph
UV index8 – High
Precip chance4%
Sunrise06:43
Sunset19:37
Saturday 5/9 Sunny
78°51°3%⌄
Wind11 mph SW
Gusts22 mph
UV index7 – High
Precip chance3%
Sunrise06:44
Sunset19:35
Sunday 6/9 Sunny
78°51°3%⌄
Wind10 mph SW
Gusts18 mph
UV index7 – High
Precip chance3%
Sunrise06:45
Sunset19:34
Monday 7/9 Sunny
83°52°3%⌄
Wind8 mph SW
Gusts16 mph
UV index7 – High
Precip chance3%
Sunrise06:46
Sunset19:32
Tuesday 8/9 Mostly cloudy
78°55°9%⌄
Wind9 mph SW
Gusts20 mph
UV index7 – High
Precip chance9%
Sunrise06:47
Sunset19:31
Wednesday 9/9 Sunny
76°51°6%⌄
Wind9 mph S
Gusts21 mph
UV index6 – High
Precip chance6%
Sunrise06:47
Sunset19:29
Thursday 10/9 Sunny
79°53°17%⌄
Wind8 mph SW
Gusts13 mph
UV index7 – High
Precip chance17%
Sunrise06:48
Sunset19:28
Friday 11/9 Mostly cloudy
77°54°11%⌄
Wind10 mph SW
Gusts21 mph
UV index6 – High
Precip chance11%
Sunrise06:49
Sunset19:26
Saturday 12/9 Sunny
80°54°8%⌄
Wind9 mph SW
Gusts18 mph
UV index7 – High
Precip chance8%
Sunrise06:50
Sunset19:24
Sunday 13/9 Mostly cloudy
88°57°8%⌄
Wind7 mph SW
Gusts16 mph
UV index8 – Very high
Precip chance8%
Sunrise06:51
Sunset19:23
Monday 14/9 Sunny
91°62°3%⌄
Wind9 mph SW
Gusts20 mph
UV index8 – Very high
Precip chance3%
Sunrise06:52
Sunset19:21
Tuesday 15/9 Sunny
85°62°1%⌄
Wind10 mph SW
Gusts10 mph
UV index7 – High
Precip chance1%
Sunrise06:53
Sunset19:20
Wednesday 16/9 Light rain (climatological)
77°53°1.6 mm⌄
Day≈71–82°
Night≈47–58°
Precip≈1.2 in / September
(climatological)Typical range for these dates · 1991–2020
Thursday 17/9 Partly cloudy (climatological)
83°56°20%⌄
Day≈78–89°
Night≈51–62°
Precip≈1.2 in / September
(climatological)Typical range for these dates · 1991–2020
Friday 18/9 Partly cloudy (climatological)
81°56°20%⌄
Day≈76–87°
Night≈50–61°
Precip≈1.2 in / September
(climatological)Typical range for these dates · 1991–2020
Saturday 19/9 Rain (climatological)
81°55°2.1 mm⌄
Day≈76–86°
Night≈50–61°
Precip≈1.2 in / September
(climatological)Typical range for these dates · 1991–2020
Sunday 20/9 Partly cloudy (climatological)
79°54°20%⌄
Day≈73–84°
Night≈49–59°
Precip≈1.2 in / September
(climatological)Typical range for these dates · 1991–2020
Monday 21/9 Partly cloudy (climatological)
74°51°20%⌄
Day≈68–79°
Night≈46–56°
Precip≈1.2 in / September
(climatological)Typical range for these dates · 1991–2020
Tuesday 22/9 Light rain (climatological)
74°51°1.7 mm⌄
Day≈69–79°
Night≈46–56°
Precip≈1.2 in / September
(climatological)Typical range for these dates · 1991–2020
Wednesday 23/9 Partly cloudy (climatological)
78°53°20%⌄
Day≈72–83°
Night≈48–59°
Precip≈1.2 in / September
(climatological)Typical range for these dates · 1991–2020
Thursday 24/9 Partly cloudy (climatological)
84°57°20%⌄
Day≈78–89°
Night≈51–62°
Precip≈1.2 in / September
(climatological)Typical range for these dates · 1991–2020
Friday 25/9 Rain (climatological)
81°55°2.9 mm⌄
Day≈76–86°
Night≈50–61°
Precip≈1.2 in / September
(climatological)Typical range for these dates · 1991–2020
Saturday 26/9 Partly cloudy (climatological)
79°54°20%⌄
Day≈74–84°
Night≈49–60°
Precip≈1.2 in / September
(climatological)Typical range for these dates · 1991–2020
Sunday 27/9 Partly cloudy (climatological)
75°52°20%⌄
Day≈69–80°
Night≈46–57°
Precip≈1.2 in / September
(climatological)Typical range for these dates · 1991–2020
Monday 28/9 Rain (climatological)
76°53°4.0 mm⌄
Day≈71–82°
Night≈47–58°
Precip≈1.2 in / September
(climatological)Typical range for these dates · 1991–2020
Tuesday 29/9 Partly cloudy (climatological)
78°53°20%⌄
Day≈72–83°
Night≈48–59°
Precip≈1.2 in / September
(climatological)Typical range for these dates · 1991–2020
Wednesday 30/9 Partly cloudy (climatological)
77°53°20%⌄
Day≈72–83°
Night≈48–58°
Precip≈1.2 in / September
(climatological)Typical range for these dates · 1991–2020
Thursday 1/10 Rain (climatological)
71°46°4.0 mm⌄
Day≈66–77°
Night≈40–51°
Precip≈1.2 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 Graton, 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.