Tamalpais-Homestead Valley · first 14 days — live forecast · rest of month — climate corridor
🗺️ 14-day forecast map
Tamalpais-Homestead Valley & 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
24°
Wed, Sep 9
Coldest night
14°
Fri, Sep 18
Days with precip
0 / 14
of 14 forecast days
Nicest day
Sat, Sep 19
mild, dry, light wind
The next 4 weekends
plan ahead
Sat 12 – Sun 13 Sep
19° 16°
17% precip chance
Sat 19 – Sun 20 Sep
21° 16°
typical range
Sat 26 – Sun 27 Sep
20° 15°
typical range
Sat 3 – Sun 4 Oct
13° 9°
typical range
30 days — Tamalpais-Homestead Valley
14 forecast + 16 climatology
Sun · Today Sunny
18°15°9%⌄
Wind18 mph W
Gusts26 mph
UV index7 – High
Precip chance9%
Sunrise06:44
Sunset19:32
Mon · Tomorrow Sunny
21°15°6%⌄
Wind15 mph NW
Gusts24 mph
UV index7 – High
Precip chance6%
Sunrise06:45
Sunset19:31
Tuesday 8/9 Mostly cloudy
20°16°14%⌄
Wind14 mph SW
Gusts17 mph
UV index8 – High
Precip chance14%
Sunrise06:46
Sunset19:29
Wednesday 9/9 Mostly cloudy
24°17°14%⌄
Wind12 mph W
Gusts17 mph
UV index8 – Very high
Precip chance14%
Sunrise06:47
Sunset19:28
Thursday 10/9 Partly cloudy
22°18°8%⌄
Wind11 mph W
Gusts16 mph
UV index6 – High
Precip chance8%
Sunrise06:47
Sunset19:26
Friday 11/9 Mostly cloudy
19°17°17%⌄
Wind14 mph W
Gusts19 mph
UV index5 – Moderate
Precip chance17%
Sunrise06:48
Sunset19:24
Saturday 12/9 Mostly cloudy
19°16°17%⌄
Wind13 mph SW
Gusts16 mph
UV index5 – Moderate
Precip chance17%
Sunrise06:49
Sunset19:23
Sunday 13/9 Sunny
19°16°10%⌄
Wind11 mph W
Gusts13 mph
UV index5 – Moderate
Precip chance10%
Sunrise06:50
Sunset19:21
Monday 14/9 Sunny
20°17°13%⌄
Wind13 mph SW
Gusts15 mph
UV index5 – Moderate
Precip chance13%
Sunrise06:51
Sunset19:20
Tuesday 15/9 Sunny
17°15°9%⌄
Wind20 mph W
Gusts25 mph
UV index5 – Moderate
Precip chance9%
Sunrise06:52
Sunset19:18
Wednesday 16/9 Sunny
17°14°9%⌄
Wind18 mph NW
Gusts25 mph
UV index5 – Moderate
Precip chance9%
Sunrise06:52
Sunset19:17
Thursday 17/9 Sunny
17°14°9%⌄
Wind23 mph NW
Gusts30 mph
UV index5 – Moderate
Precip chance9%
Sunrise06:53
Sunset19:15
Friday 18/9 Sunny
18°14°4%⌄
Wind16 mph W
Gusts21 mph
UV index5 – Moderate
Precip chance4%
Sunrise06:54
Sunset19:14
Saturday 19/9 Sunny
20°16°4%⌄
Wind10 mph W
Gusts19 mph
UV index6 – High
Precip chance4%
Sunrise06:55
Sunset19:12
Sunday 20/9 Light rain (climatological)
21°17°1.1 mm⌄
Day≈18–24°
Night≈14–20°
Precip≈0.6 in / September
(climatological)Typical range for these dates · 1991–2020
Monday 21/9 Partly cloudy (climatological)
20°16°20%⌄
Day≈17–23°
Night≈13–19°
Precip≈0.6 in / September
(climatological)Typical range for these dates · 1991–2020
Tuesday 22/9 Partly cloudy (climatological)
23°18°20%⌄
Day≈20–26°
Night≈15–21°
Precip≈0.6 in / September
(climatological)Typical range for these dates · 1991–2020
Wednesday 23/9 Light rain (climatological)
22°17°0.9 mm⌄
Day≈19–25°
Night≈14–20°
Precip≈0.6 in / September
(climatological)Typical range for these dates · 1991–2020
Thursday 24/9 Partly cloudy (climatological)
19°15°20%⌄
Day≈16–22°
Night≈12–18°
Precip≈0.6 in / September
(climatological)Typical range for these dates · 1991–2020
Friday 25/9 Partly cloudy (climatological)
18°15°20%⌄
Day≈15–21°
Night≈12–18°
Precip≈0.6 in / September
(climatological)Typical range for these dates · 1991–2020
Saturday 26/9 Light rain (climatological)
18°15°1.5 mm⌄
Day≈15–21°
Night≈12–18°
Precip≈0.6 in / September
(climatological)Typical range for these dates · 1991–2020
Sunday 27/9 Partly cloudy (climatological)
20°16°20%⌄
Day≈17–23°
Night≈13–19°
Precip≈0.6 in / September
(climatological)Typical range for these dates · 1991–2020
Monday 28/9 Partly cloudy (climatological)
21°17°20%⌄
Day≈18–24°
Night≈14–20°
Precip≈0.6 in / September
(climatological)Typical range for these dates · 1991–2020
Tuesday 29/9 Light rain (climatological)
23°18°1.5 mm⌄
Day≈20–26°
Night≈15–21°
Precip≈0.6 in / September
(climatological)Typical range for these dates · 1991–2020
Wednesday 30/9 Partly cloudy (climatological)
20°16°20%⌄
Day≈17–23°
Night≈13–19°
Precip≈0.6 in / September
(climatological)Typical range for these dates · 1991–2020
Thursday 1/10 Partly cloudy (climatological)
12°10°20%⌄
Day≈9–15°
Night≈7–13°
Precip≈0.6 in / October
(climatological)Typical range for these dates · 1991–2020
Friday 2/10 Light rain (climatological)
11°9°1.0 mm⌄
Day≈8–14°
Night≈6–12°
Precip≈0.6 in / October
(climatological)Typical range for these dates · 1991–2020
Saturday 3/10 Partly cloudy (climatological)
11°9°20%⌄
Day≈8–14°
Night≈6–12°
Precip≈0.6 in / October
(climatological)Typical range for these dates · 1991–2020
Sunday 4/10 Partly cloudy (climatological)
13°10°20%⌄
Day≈10–16°
Night≈7–13°
Precip≈0.6 in / October
(climatological)Typical range for these dates · 1991–2020
Monday 5/10 Light rain (climatological)
17°12°0.9 mm⌄
Day≈14–20°
Night≈9–15°
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 Tamalpais-Homestead Valley, 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.