Mill Valley, CA Hourly Weather Forecast
Next 48 Hours
Mon, Sep 28th 2026
Late-night conditions only. Clear conditions expected later. Temps around 59°. Light winds from the S at 6.9 mph, while humidity around 79%, and an avg barometric pressure of 29.84 inHg.
| Mon, Sep 28th | Temp | Humidity | Wind (mph) | Pressure (inHg) | Dew Point | Precip. |
|---|---|---|---|---|---|---|
11 PM Clear UV: 0 |
59°F Feels 56°F |
79% | 6.9 S | 29.84 | 52.7°F | 9% |
Tue, Sep 29th 2026
Sunny skies early, becoming Clear conditions later. Warming trend from 59°F to 74°. Light winds, shifting from S to S at 5.8 mph, with humidity levels between 46% to 83%, and an avg barometric pressure of 29.77 inHg.
| Tue, Sep 29th | Temp | Humidity | Wind (mph) | Pressure (inHg) | Dew Point | Precip. |
|---|---|---|---|---|---|---|
12 AM ClearUV: 0 |
59°F Feels 56°F |
81% | 7.8 S | 29.83 | 53.2°F | 10% |
1 AM ClearUV: 0 |
59°F Feels 56°F |
81% | 6 SSW | 29.83 | 53.1°F | 10% |
2 AM Partly Cloudy UV: 0 |
59°F Feels 58°F |
79% | 3.8 SSW | 29.83 | 52.5°F | 12% |
3 AM ClearUV: 0 |
59°F Feels 58°F |
78% | 3.6 SSW | 29.82 | 52.1°F | 8% |
4 AM ClearUV: 0 |
59°F Feels 57°F |
78% | 3.6 SW | 29.81 | 51.9°F | 9% |
5 AM ClearUV: 0 |
59°F Feels 58°F |
75% | 2.9 WSW | 29.81 | 51°F | 8% |
6 AM Cloudy UV: 0 |
59°F Feels 59°F |
73% | 1.6 W | 29.81 | 50.5°F | 14% |
7 AM ClearUV: 0 |
59°F Feels 59°F |
70% | 1.1 NW | 29.82 | 49.7°F | 6% |
8 AM Sunny UV: 0.2 |
61°F Feels 60°F |
67% | 1.1 WSW | 29.83 | 49.7°F | 5% |
9 AM SunnyUV: 0.9 |
64°F Feels 64°F |
61% | 0.7 SSW | 29.83 | 50.2°F | 4% |
10 AM SunnyUV: 2.2 |
67°F Feels 66°F |
57% | 1.8 SSE | 29.83 | 50.8°F | 3% |
11 AM SunnyUV: 4 |
67°F Feels 65°F |
58% | 4.5 SSE | 29.83 | 51.7°F | 3% |
12 PM SunnyUV: 5.5 |
68°F Feels 66°F |
57% | 4.9 SSE | 29.81 | 52.4°F | 3% |
1 PM SunnyUV: 6.2 |
72°F Feels 70°F |
51% | 5.8 SSW | 29.78 | 53.3°F | 2% |
2 PM SunnyUV: 5.9 |
74°F Feels 70°F |
48% | 8.5 SSW | 29.74 | 53°F | 2% |
3 PM SunnyUV: 4.6 |
74°F Feels 69°F |
46% | 10.5 SW | 29.71 | 52.1°F | 1% |
4 PM SunnyUV: 2.9 |
73°F Feels 68°F |
46% | 11 SW | 29.7 | 51.6°F | 1% |
5 PM SunnyUV: 1.3 |
72°F Feels 67°F |
50% | 9.2 SW | 29.69 | 51.9°F | 2% |
6 PM SunnyUV: 0.3 |
69°F Feels 65°F |
57% | 8.7 SSW | 29.68 | 53.1°F | 3% |
7 PM ClearUV: 0 |
65°F Feels 61°F |
65% | 8.7 SSW | 29.69 | 53.3°F | 4% |
8 PM ClearUV: 0 |
63°F Feels 60°F |
71% | 8.1 SSW | 29.71 | 53.7°F | 6% |
9 PM ClearUV: 0 |
62°F Feels 60°F |
75% | 6.7 S | 29.72 | 54.2°F | 7% |
10 PM ClearUV: 0 |
62°F Feels 59°F |
77% | 8.5 S | 29.73 | 54.6°F | 8% |
11 PM ClearUV: 0 |
61°F Feels 57°F |
83% | 9.2 S | 29.74 | 55.5°F | 10% |
Wed, Sep 30th 2026
Sunny skies early, becoming Clear conditions later. Warming trend from 59°F to 74°. Light winds, shifting from S to SSW at 5.9 mph, while humidity ranges from 52% to 89%, and an avg barometric pressure of 29.76 inHg.
| Wed, Sep 30th | Temp | Humidity | Wind (mph) | Pressure (inHg) | Dew Point | Precip. |
|---|---|---|---|---|---|---|
12 AM ClearUV: 0 |
60°F Feels 57°F |
87% | 8.7 S | 29.73 | 56.2°F | 12% |
1 AM ClearUV: 0 |
60°F Feels 57°F |
88% | 8.1 SSW | 29.73 | 56.1°F | 12% |
2 AM ClearUV: 0 |
60°F Feels 58°F |
87% | 6.7 SSW | 29.73 | 55.8°F | 12% |
3 AM ClearUV: 0 |
60°F Feels 59°F |
87% | 5.4 S | 29.74 | 55.7°F | 12% |
4 AM ClearUV: 0 |
59°F Feels 58°F |
89% | 5.1 S | 29.74 | 55.7°F | 13% |
5 AM ClearUV: 0 |
59°F Feels 59°F |
88% | 4.3 SSW | 29.75 | 55.8°F | 12% |
6 AM ClearUV: 0 |
60°F Feels 59°F |
86% | 3.6 SSW | 29.76 | 55.4°F | 11% |
7 AM ClearUV: 0 |
60°F Feels 60°F |
83% | 2.2 WSW | 29.77 | 54.8°F | 10% |
8 AM SunnyUV: 0.2 |
62°F Feels 62°F |
78% | 1.6 WSW | 29.79 | 54.9°F | 8% |
9 AM SunnyUV: 0.9 |
65°F Feels 66°F |
72% | 0.7 SE | 29.8 | 55.3°F | 6% |
10 AM SunnyUV: 2.2 |
66°F Feels 66°F |
68% | 2 E | 29.81 | 55.2°F | 5% |
11 AM SunnyUV: 4 |
66°F Feels 66°F |
69% | 3.1 ESE | 29.81 | 55.6°F | 5% |
12 PM Partly Cloudy UV: 5.6 |
67°F Feels 67°F |
69% | 2.7 ESE | 29.8 | 56.3°F | 9% |
1 PM Partly CloudyUV: 6.1 |
68°F Feels 68°F |
67% | 2.7 S | 29.78 | 56.2°F | 8% |
2 PM SunnyUV: 5.8 |
71°F Feels 69°F |
57% | 5.6 SSW | 29.77 | 54.9°F | 3% |
3 PM SunnyUV: 4.6 |
74°F Feels 71°F |
54% | 8.9 SSW | 29.74 | 56.1°F | 2% |
4 PM SunnyUV: 2.9 |
74°F Feels 71°F |
52% | 9.8 SSW | 29.73 | 55.7°F | 2% |
5 PM SunnyUV: 1.2 |
73°F Feels 69°F |
54% | 10.1 SSW | 29.73 | 55.3°F | 2% |
6 PM SunnyUV: 0.3 |
70°F Feels 66°F |
58% | 9.6 SW | 29.73 | 54.7°F | 3% |
7 PM ClearUV: 0 |
66°F Feels 62°F |
66% | 8.5 SW | 29.74 | 53.8°F | 5% |
8 PM ClearUV: 0 |
63°F Feels 59°F |
72% | 8.7 SW | 29.76 | 53.6°F | 6% |
9 PM ClearUV: 0 |
61°F Feels 58°F |
76% | 8.3 SSW | 29.77 | 53.8°F | 8% |
10 PM ClearUV: 0 |
60°F Feels 57°F |
79% | 8.5 SSW | 29.78 | 54°F | 9% |
Ask About Weather
Try our Weather Chatbot. It provides up to 10 days of forecast information!Hourly Weather Nearby
More Local Information
Bookmark and Share
