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| Point Forecast: Costa Mesa CA 33.67N 117.92W (Elev. 3 ft) |
Last Update: 2:45 am PDT Jun 18, 2021 |
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| Date | 06/18 | 06/19 | ||||||||||||||||||||||
| 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) | 64 | 63 | 64 | 66 | 68 | 70 | 72 | 72 | 72 | 73 | 73 | 73 | 73 | 72 | 70 | 67 | 66 | 65 | 65 | 65 | 64 | 64 | 63 | 63 |
| Dewpoint (°F) | 61 | 61 | 62 | 63 | 63 | 63 | 63 | 63 | 62 | 62 | 62 | 62 | 62 | 62 | 61 | 62 | 62 | 62 | 62 | 62 | 61 | 61 | 61 | 60 |
| Heat Index (°F) | ||||||||||||||||||||||||
| Surface Wind (mph) | 2 | 2 | 2 | 2 | 2 | 5 | 6 | 7 | 8 | 8 | 7 | 7 | 7 | 6 | 6 | 6 | 3 | 3 | 2 | 2 | 2 | 1 | 1 | 1 |
| Wind Dir | S | S | S | S | S | SW | SW | SW | SW | SW | SW | SW | SW | SW | SW | SW | SW | SW | SW | S | S | S | S | S |
| Gust | ||||||||||||||||||||||||
| Sky Cover (%) | 76 | 83 | 54 | 43 | 58 | 42 | 39 | 35 | 33 | 21 | 20 | 15 | 13 | 18 | 17 | 21 | 39 | 57 | 44 | 64 | 59 | 64 | 60 | 61 |
| Precipitation Potential (%) | 20 | 20 | 20 | 20 | 20 | 20 | 1 | 1 | 1 | 1 | 1 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| Relative Humidity (%) | 92 | 93 | 93 | 90 | 83 | 78 | 74 | 72 | 71 | 68 | 68 | 68 | 69 | 70 | 74 | 81 | 87 | 88 | 90 | 90 | 90 | 91 | 92 | 91 |
| Rain | SChc | SChc | SChc | SChc | SChc | SChc | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
| Thunder | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
| Date | 06/20 | |||||||||||||||||||||||
| 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) | 63 | 62 | 64 | 66 | 69 | 71 | 73 | 74 | 75 | 74 | 74 | 74 | 73 | 72 | 70 | 68 | 66 | 65 | 64 | 64 | 63 | 63 | 62 | 62 |
| Dewpoint (°F) | 61 | 61 | 61 | 62 | 62 | 62 | 62 | 62 | 62 | 62 | 62 | 62 | 61 | 61 | 61 | 61 | 61 | 61 | 61 | 60 | 60 | 60 | 60 | 60 |
| Heat Index (°F) | 75 | |||||||||||||||||||||||
| Surface Wind (mph) | 2 | 1 | 1 | 2 | 2 | 5 | 6 | 6 | 6 | 8 | 8 | 8 | 8 | 8 | 8 | 6 | 6 | 6 | 2 | 2 | 2 | 2 | 2 | 2 |
| Wind Dir | S | SW | SW | SW | SW | SW | SW | SW | SW | SW | SW | SW | SW | SW | SW | SW | SW | SW | SW | SW | SW | SW | SW | SW |
| Gust | ||||||||||||||||||||||||
| Sky Cover (%) | 63 | 71 | 51 | 42 | 48 | 39 | 19 | 16 | 12 | 9 | 10 | 12 | 13 | 13 | 13 | 13 | 13 | 13 | 37 | 37 | 37 | 37 | 37 | 37 |
| 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 (%) | 93 | 94 | 91 | 88 | 80 | 75 | 68 | 65 | 65 | 65 | 65 | 65 | 67 | 70 | 74 | 79 | 83 | 86 | 88 | 89 | 89 | 89 | 91 | 92 |
| Rain | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
| Thunder | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
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