| Point Forecast: 9NM NNW Evanston IL 42.19N 87.77W |
Last Update: 3:41 am CDT May 18, 2024 |
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| Date | 05/18 | 05/19 | ||||||||||||||||||||||
| Hour (CDT) | 08 | 09 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 00 | 01 | 02 | 03 | 04 | 05 | 06 | 07 |
| Temperature (°F) | 61 | 65 | 69 | 70 | 72 | 70 | 70 | 70 | 70 | 72 | 73 | 73 | 73 | 68 | 67 | 67 | 66 | 66 | 65 | 64 | 63 | 62 | 62 | 62 |
| Dewpoint (°F) | 54 | 55 | 56 | 56 | 55 | 56 | 55 | 55 | 55 | 55 | 55 | 54 | 54 | 54 | 54 | 54 | 55 | 55 | 55 | 56 | 56 | 56 | 55 | 55 |
| Heat Index (°F) | ||||||||||||||||||||||||
| Surface Wind (mph) | 3 | 4 | 5 | 6 | 7 | 8 | 8 | 9 | 9 | 8 | 8 | 7 | 6 | 6 | 6 | 5 | 6 | 6 | 6 | 6 | 6 | 6 | 6 | 7 |
| Wind Dir | S | S | S | SSE | SSE | SSE | SE | SE | SE | SSE | SSE | SSE | SSE | S | S | S | SSW | SSW | SW | WSW | WSW | W | NW | NNW |
| Gust | ||||||||||||||||||||||||
| Sky Cover (%) | 20 | 16 | 16 | 15 | 18 | 21 | 23 | 25 | 22 | 20 | 22 | 23 | 19 | 14 | 21 | 28 | 35 | 43 | 41 | 39 | 37 | 32 | 27 | 22 |
| Precipitation Potential (%) | 0 | 0 | 0 | 0 | 1 | 1 | 2 | 1 | 3 | 3 | 3 | 8 | 8 | 8 | 8 | 8 | 8 | 14 | 14 | 14 | 12 | 12 | 12 | 3 |
| Relative Humidity (%) | 78 | 70 | 63 | 61 | 55 | 60 | 60 | 59 | 59 | 54 | 52 | 52 | 52 | 61 | 63 | 63 | 68 | 68 | 70 | 75 | 78 | 81 | 78 | 78 |
| Rain | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
| Thunder | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
| Wave Height (ft) | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| Wave Period (sec) | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 2 | 2 |
| Wave Direction (°) | 80 | 80 | 90 | 100 | 130 | 130 | 130 | 130 | 120 | 120 | 120 | 120 | 120 | 120 | 120 | 120 | 120 | 120 | 120 | 120 | 120 | 130 | 130 | 130 |
| Date | 05/20 | |||||||||||||||||||||||
| Hour (CDT) | 08 | 09 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 00 | 01 | 02 | 03 | 04 | 05 | 06 | 07 |
| Temperature (°F) | 62 | 63 | 64 | 64 | 63 | 63 | 63 | 62 | 62 | 61 | 61 | 60 | 59 | 58 | 57 | 57 | 57 | 57 | 57 | 58 | 58 | 58 | 58 | 60 |
| Dewpoint (°F) | 54 | 52 | 52 | 51 | 50 | 50 | 50 | 49 | 49 | 48 | 48 | 47 | 47 | 47 | 47 | 47 | 48 | 48 | 49 | 50 | 51 | 51 | 52 | 53 |
| Heat Index (°F) | ||||||||||||||||||||||||
| Surface Wind (mph) | 7 | 8 | 8 | 8 | 8 | 7 | 7 | 7 | 7 | 7 | 7 | 7 | 6 | 6 | 5 | 5 | 5 | 5 | 5 | 5 | 5 | 6 | 6 | 7 |
| Wind Dir | N | N | NNE | NNE | NNE | NNE | NE | NE | NE | NE | NE | NE | NE | ENE | ENE | E | ESE | SE | SE | SSE | SSE | SSE | SSE | SSE |
| Gust | ||||||||||||||||||||||||
| Sky Cover (%) | 19 | 16 | 13 | 14 | 16 | 18 | 20 | 21 | 23 | 30 | 38 | 45 | 49 | 52 | 56 | 61 | 66 | 72 | 67 | 63 | 59 | 56 | 53 | 51 |
| Precipitation Potential (%) | 3 | 3 | 3 | 3 | 3 | 8 | 8 | 8 | 8 | 8 | 8 | 11 | 11 | 11 | 11 | 11 | 11 | 17 | 17 | 17 | 17 | 17 | 17 | 25 |
| Relative Humidity (%) | 75 | 67 | 65 | 63 | 62 | 62 | 62 | 62 | 62 | 62 | 62 | 63 | 66 | 68 | 69 | 69 | 72 | 72 | 72 | 75 | 78 | 77 | 77 | 74 |
| Rain | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | SChc | SChc | SChc | SChc | SChc | SChc | Chc |
| Thunder | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | SChc | SChc | SChc | SChc | SChc | SChc | Chc |
| Wave Height (ft) | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| Wave Period (sec) | 2 | 1 | 2 | 2 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 3 |
| Wave Direction (°) | 130 | 340 | 10 | 20 | 20 | 20 | 20 | 20 | 20 | 20 | 20 | 20 | 20 | 20 | 20 | 20 | 20 | 20 | 20 | 20 | 20 | 20 | 20 | 110 |
