| Point Forecast: Arcata/Eureka Airport CA 40.97N 124.1W (Elev. 197 ft) |
Last Update: 3:41 am PDT Aug 12, 2026 |
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| Date | 08/12 | 08/13 | ||||||||||||||||||||||
| Hour (PDT) | 05 | 06 | 07 | 08 | 09 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 00 | 01 | 02 | 03 | 04 |
| Temperature (°F) | 54 | 54 | 54 | 55 | 56 | 58 | 59 | 59 | 60 | 62 | 62 | 62 | 63 | 60 | 60 | 58 | 56 | 56 | 56 | 56 | 55 | 55 | 55 | 54 |
| Dewpoint (°F) | 53 | 54 | 54 | 54 | 55 | 55 | 55 | 55 | 55 | 56 | 56 | 56 | 57 | 55 | 56 | 55 | 54 | 54 | 54 | 55 | 54 | 54 | 54 | 54 |
| Heat Index (°F) | ||||||||||||||||||||||||
| Surface Wind (mph) | 2 | 2 | 2 | 5 | 5 | 5 | 10 | 10 | 10 | 13 | 13 | 13 | 10 | 10 | 10 | 6 | 6 | 6 | 3 | 3 | 3 | 1 | 1 | 1 |
| Wind Dir | NNW | NNW | NNW | NW | NW | NW | NW | NW | NW | NW | NW | NW | WNW | WNW | WNW | WNW | WNW | WNW | NW | NW | NW | NNW | NNW | NNW |
| Gust | 20 | 20 | 20 | |||||||||||||||||||||
| Sky Cover (%) | 87 | 87 | 87 | 85 | 85 | 85 | 65 | 65 | 65 | 47 | 47 | 47 | 47 | 47 | 47 | 89 | 89 | 89 | 86 | 86 | 86 | 90 | 90 | 90 |
| Precipitation Potential (%) | 15 | 15 | 15 | 1 | 1 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 1 | 1 | 1 | 1 | 1 | 15 | 15 | 15 | 15 | 15 | 15 |
| Relative Humidity (%) | 97 | 99 | 99 | 98 | 96 | 90 | 88 | 86 | 84 | 80 | 80 | 80 | 82 | 85 | 87 | 89 | 94 | 94 | 94 | 96 | 98 | 97 | 97 | 99 |
| Rain | SChc | SChc | SChc | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | SChc | SChc | SChc | SChc | SChc | SChc |
| Thunder | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
| Date | 08/14 | |||||||||||||||||||||||
| Hour (PDT) | 05 | 06 | 07 | 08 | 09 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 00 | 01 | 02 | 03 | 04 |
| Temperature (°F) | 54 | 54 | 53 | 54 | 54 | 56 | 56 | 57 | 58 | 59 | 59 | 59 | 60 | 58 | 57 | 57 | 57 | 56 | 56 | 56 | 56 | 56 | 55 | 55 |
| Dewpoint (°F) | 54 | 54 | 53 | 54 | 54 | 55 | 55 | 55 | 54 | 54 | 54 | 54 | 55 | 55 | 54 | 55 | 55 | 54 | 54 | 55 | 55 | 55 | 54 | 54 |
| Heat Index (°F) | ||||||||||||||||||||||||
| Surface Wind (mph) | 2 | 2 | 2 | 3 | 3 | 3 | 7 | 7 | 7 | 9 | 9 | 9 | 10 | 10 | 10 | 6 | 6 | 6 | 2 | 2 | 2 | 0 | 0 | 0 |
| Wind Dir | NNW | NNW | NNW | NW | NW | NW | WNW | WNW | WNW | WNW | WNW | WNW | NW | NW | NW | NW | NW | NW | WSW | WSW | WSW | S | S | S |
| Gust | ||||||||||||||||||||||||
| Sky Cover (%) | 96 | 96 | 96 | 98 | 98 | 98 | 87 | 87 | 87 | 78 | 78 | 78 | 65 | 65 | 65 | 80 | 80 | 80 | 96 | 96 | 96 | 97 | 97 | 97 |
| Precipitation Potential (%) | 10 | 10 | 10 | 10 | 10 | 10 | 5 | 5 | 5 | 5 | 5 | 5 | 3 | 3 | 3 | 3 | 3 | 3 | 15 | 15 | 15 | 15 | 15 | 15 |
| Relative Humidity (%) | 99 | 100 | 100 | 100 | 100 | 96 | 95 | 92 | 88 | 84 | 84 | 84 | 85 | 89 | 91 | 92 | 93 | 94 | 94 | 95 | 96 | 97 | 98 | 98 |
| Rain | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | SChc | SChc | SChc | SChc | SChc | SChc |
| Thunder | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
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