| Point Forecast: 7 Miles W Rio Linda CA 38.7N 121.58W (Elev. 5 m) |
Last Update: 2:01 am PDT May 21, 2026 |
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| Date | 05/21 | 05/22 | ||||||||||||||||||||||
| Hour (PDT) | 04 | 05 | 06 | 07 | 08 | 09 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 00 | 01 | 02 | 03 |
| Temperature (°C) | 14 | 14 | 14 | 15 | 17 | 19 | 23 | 26 | 29 | 32 | 33 | 34 | 35 | 35 | 34 | 33 | 28 | 25 | 22 | 20 | 18 | 17 | 16 | 14 |
| Dewpoint (°C) | 8 | 8 | 8 | 8 | 8 | 8 | 9 | 8 | 8 | 8 | 6 | 6 | 4 | 3 | 4 | 6 | 6 | 6 | 7 | 7 | 8 | 8 | 8 | 8 |
| Heat Index (°C) | 26 | 28 | 31 | 31 | 32 | 32 | 32 | 32 | 31 | 27 | 25 | |||||||||||||
| Surface Wind (mph) | 5 | 3 | 0 | 0 | 0 | 0 | 0 | 0 | 2 | 3 | 5 | 6 | 7 | 9 | 11 | 13 | 11 | 10 | 9 | 9 | 9 | 9 | 9 | 8 |
| Wind Dir | S | S | ESE | E | ENE | NNW | NW | WNW | W | W | W | W | WSW | SW | SW | WSW | SW | SW | SSW | S | SSE | SSE | SSE | S |
| Gust | ||||||||||||||||||||||||
| Sky Cover (%) | 9 | 14 | 3 | 2 | 4 | 5 | 5 | 0 | 0 | 1 | 1 | 1 | 1 | 0 | 0 | 0 | 1 | 0 | 1 | 1 | 2 | 2 | 2 | 2 |
| Precipitation Potential (%) | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 |
| Relative Humidity (%) | 63 | 66 | 66 | 62 | 56 | 48 | 39 | 32 | 26 | 22 | 18 | 17 | 15 | 14 | 15 | 18 | 24 | 30 | 37 | 44 | 50 | 54 | 59 | 64 |
| Rain | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
| Thunder | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
| Date | 05/23 | |||||||||||||||||||||||
| Hour (PDT) | 04 | 05 | 06 | 07 | 08 | 09 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 00 | 01 | 02 | 03 |
| Temperature (°C) | 14 | 14 | 13 | 14 | 16 | 18 | 22 | 25 | 28 | 31 | 33 | 33 | 34 | 33 | 33 | 29 | 25 | 22 | 19 | 17 | 16 | 14 | 13 | 13 |
| Dewpoint (°C) | 8 | 8 | 8 | 9 | 9 | 8 | 9 | 8 | 8 | 6 | 4 | 3 | 3 | 2 | 4 | 7 | 9 | 9 | 10 | 10 | 9 | 9 | 9 | 9 |
| Heat Index (°C) | 25 | 27 | 29 | 31 | 31 | 31 | 31 | 31 | 28 | 25 | ||||||||||||||
| Surface Wind (mph) | 7 | 7 | 7 | 7 | 3 | 3 | 3 | 5 | 5 | 5 | 9 | 9 | 9 | 14 | 14 | 14 | 14 | 14 | 14 | 11 | 11 | 11 | 10 | 10 |
| Wind Dir | SSE | SSE | SSE | SSE | S | S | S | SSW | SSW | SSW | SSW | SSW | SSW | SSW | SSW | SSW | SSW | SSW | SSW | S | S | S | SSE | SSE |
| Gust | ||||||||||||||||||||||||
| Sky Cover (%) | 2 | 4 | 4 | 4 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 2 |
| Precipitation Potential (%) | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| Relative Humidity (%) | 67 | 71 | 71 | 70 | 64 | 54 | 44 | 35 | 27 | 21 | 17 | 15 | 14 | 14 | 17 | 25 | 36 | 45 | 54 | 62 | 68 | 73 | 77 | 81 |
| Rain | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
| Thunder | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
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