– Lat/Long: 38.67° N 122.63° W
Mount Saint Helena Weather Forecast
Mayacmas Mountains · United StatesIssued: 4 am Mon 28 Sep Local Time
Updates in:
Update imminent hr min s
Issued: 4 am Mon 28 Sep Local Time
Updates in:
Update imminent hr min s
2 Mount Saint Helena Elevations: 2 Forecast Elevations: Days 1–3 Weather SummaryMostly dry. Warm (max 24°C on Wed afternoon, min 13°C on Mon morning). Winds decreasing (fresh winds from the NNE on Mon night, calm by Wed afternoon). | Days 4–6 Weather SummaryMostly dry. Warm (max 24°C on Fri afternoon, min 21°C on Thu morning). Wind will be generally light. | |||||||||||||||||
Monday 28 | Tuesday 29 | Wednesday 30 | Thursday 1 | Friday 2 | Saturday 3 | |||||||||||||
AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | |
 | |  | | | | | | | | | | | | | |  |  | |
clear | clear | clear | clear | clear | clear | clear | clear | clear | clear | clear | clear | clear | clear | clear | clear | some clouds | some clouds | |
Cloud base (m) | 8650 | 8750 | 8700 | 9400 | 7150 | |||||||||||||
km/h | ||||||||||||||||||
 |  |  |  |  |  | |||||||||||||
 cm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
max °C | 14 | 18 | 19 | 20 | 23 | 23 | 22 | 24 | 23 | 22 | 23 | 22 | 22 | 24 | 23 | 23 | 24 | 24 |
min °C | 13 | 17 | 18 | 19 | 22 | 22 | 22 | 23 | 22 | 21 | 23 | 21 | 21 | 23 | 22 | 22 | 24 | 23 |
chill °C | 11 | 17 | 18 | 19 | 22 | 22 | 22 | 23 | 22 | 21 | 23 | 21 | 21 | 23 | 22 | 22 | 24 | 23 |
Freezing level m | 3350 | 3700 | 4300 | 4600 | 4850 | 4850 | 4900 | 4950 | 4900 | 4900 | 4900 | 4900 | 4900 | 5000 | 5000 | 4900 | 4800 | 4750 |
 | 7:03 | — | — | 7:03 | — | — | 7:05 | — | — | 7:05 | — | — | 7:05 | — | — | 7:07 | — | — |
 | — | 6:58 | — | — | 6:55 | — | — | 6:54 | — | — | 6:52 | — | — | 6:52 | — | — | 6:50 | — |
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Mount Saint Helena Weather (Days 0-3):
The weather forecast for Mount Saint Helena is: Mostly dry. Warm (max 24°C on Wed afternoon, min 13°C on Mon morning). Winds decreasing (fresh winds from the NNE on Mon night, calm by Wed afternoon).
Mount Saint Helena Weather (Days 3-6):
Mostly dry. Warm (max 24°C on Fri afternoon, min 21°C on Thu morning). Wind will be generally light.
This table gives the weather forecast for Mount Saint Helena at the specific elevation of 1323 m. Our advanced weather models allow us to provide distinct weather forecasts for several elevations of Mount Saint Helena. To see the weather forecasts for the other elevations, use the tab navigation above the table. For a wider overview of the weather, consult the Weather Map of California.
| Weather Station | Temp. | Weather | Wind | Gusts | Cloud / Visibility |
|---|---|---|---|---|---|
Santa Rosa Airport |  | ||||
* NOTE: not all weather observatories update at the same frequency which is the reason why some locations may show data from stations that are further away than known closer ones.
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