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Weather Forecast for Portola (California)
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Forecast Overview
| Thursday, January 30 | sunrise: 07:12 sunset: 17:17 |
 | Low around -4°C, high around 11°C. More sun than clouds. Wind: 10 km/h. |
| Time | Skies | Conditions | Temp | Wind | Humidity | Soil Moisture |
| 01:00 04:00 |  | Clear. | -4°C | 3 km/h | 54% | 0.247% |
| 04:00 07:00 | | Clear. | -4°C | 3 km/h | 50% | 0.248% |
| 07:00 10:00 | | Sunny. | 6°C | 1 km/h | 25% | 0.249% |
| 10:00 13:00 | | Sunny. | 11°C | 5 km/h | 21% | 0.249% |
| 13:00 16:00 | | A few passing clouds. | 7°C | 10 km/h | 48% | 0.247% |
| 16:00 19:00 | | Overcast. | -1°C | 7 km/h | 88% | 0.245% |
| 19:00 22:00 | | Overcast. | -0°C | 6 km/h | 78% | 0.245% |
| 22:00 01:00 | | Overcast. | -1°C | 7 km/h | 82% | 0.244% |
| Friday, January 31 | sunrise: 07:12 sunset: 17:19 |
 | Low around -2°C, high around 2°C. Chance of rain during the afternoon and evening (between 1 pm and 10 pm). Chance of snow all night and all morning (until 1 pm), and then again at night (after 10 pm). Estimated precipitation: 26.25 mm. Overcast skies. Wind: 12 km/h. |
| Time | Skies | Conditions | Temp | Wind | Humidity | Soil Moisture |
| 01:00 04:00 | | Chance of light snow. Precipitation: 0.0625 mm. | -2°C | 8 km/h | 95% | 0.244% |
| 04:00 07:00 | | Chance of light snow. Precipitation: 0.5 mm. | -1°C | 8 km/h | 92% | 0.244% |
| 07:00 10:00 | | Chance of snow. Precipitation: 2 mm. | 0°C | 8 km/h | 90% | 0.244% |
| 10:00 13:00 | | Chance of snow. Precipitation: 1.875 mm. | 0°C | 12 km/h | 93% | 0.247% |
| 13:00 16:00 | | Chance of rain. Precipitation: 4.25 mm. | 0°C | 10 km/h | 95% | 0.262% |
| 16:00 19:00 | | Chance of rain. Precipitation: 9.0625 mm. | 2°C | 11 km/h | 98% | 0.314% |
| 19:00 22:00 | | Chance of rain. Precipitation: 3.9375 mm. | 1°C | 8 km/h | 99% | 0.333% |
| 22:00 01:00 | | Chance of snow. Precipitation: 4.5625 mm. | 0°C | 5 km/h | 100% | 0.353% |
| Saturday, February 1 | sunrise: 07:11 sunset: 17:20 |
| Low around 0°C, high around 1°C. Chance of heavy rain after 4 pm. Chance of heavy snow until late afternoon (4 pm). Estimated precipitation: 43.4375 mm. Overcast skies. Wind: 6 km/h. |
| Time | Skies | Conditions | Temp | Wind | Humidity | Soil Moisture |
| 01:00 04:00 | | Chance of snow. Precipitation: 8.1875 mm. | 0°C | 5 km/h | 100% | 0.349% |
| 04:00 07:00 | | Chance of heavy snow. Precipitation: 12.3125 mm. | 0°C | 4 km/h | 100% | 0.344% |
| 07:00 10:00 | | Chance of heavy snow. Precipitation: 11.6875 mm. | 0°C | 5 km/h | 100% | 0.352% |
| 10:00 13:00 | | Chance of snow. Precipitation: 6.25 mm. | 0°C | 6 km/h | 100% | 0.374% |
| 13:00 16:00 | | Chance of snow. Precipitation: 3 mm. | 1°C | 5 km/h | 100% | 0.36% |
| 16:00 19:00 | | Chance of light rain. Precipitation: 0.9375 mm. | 1°C | 4 km/h | 100% | 0.348% |
| 19:00 22:00 | | Chance of light rain. Precipitation: 0.625 mm. | 1°C | 3 km/h | 100% | 0.34% |
| 22:00 01:00 | | Chance of light rain. Precipitation: 0.4375 mm. | 1°C | 5 km/h | 100% | 0.336% |
| Sunday, February 2 | sunrise: 07:10 sunset: 17:21 |
| Low around -0°C, high around 3°C. Chance of heavy rain most of the day (from 7 am to 10 pm). Chance of heavy snow before sunrise (from 1 am to 7 am) and again at night (after 10 pm). Estimated precipitation: 143.125 mm. Overcast skies. Wind: 23 km/h. |
| Monday, February 3 | sunrise: 07:09 sunset: 17:22 |
 | Low around -1°C, high around 1°C. Chance of heavy snow all night and day. Estimated precipitation: 124.8125 mm. Overcast skies. Wind: 5 km/h. |
| Tuesday, February 4 | sunrise: 07:08 sunset: 17:23 |
| Low around -3°C, high around 1°C. Chance of heavy snow all night and all morning (until 1 pm), in the evening and again at night (after 7 pm). Estimated precipitation: 23.75 mm. Overcast skies. Wind: 19 km/h. |
| Wednesday, February 5 | sunrise: 07:07 sunset: 17:25 |
 | Low around -9°C, high around 1°C. Chance of snow early in the morning, between 4 am and 10 am. Estimated precipitation: 4.8125 mm. Overcast skies. Wind: 14 km/h. |
Portola (latitude 39°49'N, longitude 120°28'W)