| Point Forecast: Oak Park IL 41.88N 87.79W |
Last Update: 1:21 am CDT May 16, 2026 |
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| Date | 05/16 | 05/17 | ||||||||||||||||||||||
| Hour (CDT) | 02 | 03 | 04 | 05 | 06 | 07 | 08 | 09 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 00 | 01 |
| Temperature (°F) | 64 | 64 | 63 | 63 | 63 | 64 | 65 | 68 | 72 | 76 | 79 | 81 | 82 | 83 | 84 | 83 | 83 | 81 | 78 | 75 | 73 | 70 | 68 | 67 |
| Dewpoint (°F) | 54 | 54 | 56 | 56 | 56 | 59 | 60 | 61 | 62 | 62 | 63 | 62 | 63 | 62 | 61 | 61 | 60 | 61 | 61 | 61 | 61 | 60 | 60 | 60 |
| Heat Index (°F) | 76 | 79 | 82 | 83 | 84 | 84 | 83 | 83 | 82 | 78 | 75 | |||||||||||||
| Surface Wind (mph) | 11 | 10 | 10 | 9 | 9 | 9 | 9 | 9 | 10 | 10 | 10 | 10 | 9 | 9 | 9 | 8 | 7 | 7 | 6 | 6 | 6 | 6 | 6 | 6 |
| Wind Dir | S | SSW | SW | SW | SSW | S | SSW | SW | WSW | WSW | WSW | WSW | WSW | WSW | WSW | WSW | SSW | S | S | SSE | S | SSE | SSE | S |
| Gust | 20 | 17 | 16 | 16 | 14 | 15 | 15 | 16 | 17 | 17 | 16 | 16 | 15 | 15 | 14 | |||||||||
| Sky Cover (%) | 75 | 82 | 83 | 81 | 84 | 82 | 75 | 70 | 57 | 41 | 40 | 41 | 54 | 56 | 51 | 62 | 57 | 51 | 52 | 53 | 49 | 60 | 51 | 57 |
| Precipitation Potential (%) | 38 | 66 | 80 | 57 | 51 | 35 | 24 | 13 | 3 | 5 | 8 | 11 | 12 | 14 | 16 | 16 | 16 | 15 | 15 | 16 | 16 | 16 | 16 | 16 |
| Relative Humidity (%) | 70 | 71 | 76 | 78 | 80 | 83 | 83 | 77 | 70 | 63 | 58 | 53 | 51 | 49 | 47 | 47 | 47 | 50 | 56 | 62 | 66 | 73 | 77 | 79 |
| Rain | Chc | Lkly | Ocnl | Lkly | Chc | Chc | SChc | -- | -- | -- | -- | -- | -- | -- | SChc | SChc | SChc | SChc | SChc | SChc | SChc | SChc | SChc | SChc |
| Thunder | SChc | Chc | Lkly | Chc | SChc | SChc | -- | -- | -- | -- | -- | -- | -- | -- | SChc | SChc | SChc | SChc | SChc | SChc | SChc | SChc | SChc | SChc |
| Date | 05/18 | |||||||||||||||||||||||
| Hour (CDT) | 02 | 03 | 04 | 05 | 06 | 07 | 08 | 09 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 00 | 01 |
| Temperature (°F) | 66 | 65 | 64 | 64 | 63 | 63 | 65 | 69 | 72 | 75 | 78 | 80 | 82 | 84 | 84 | 85 | 86 | 85 | 82 | 80 | 78 | 76 | 74 | 73 |
| Dewpoint (°F) | 60 | 60 | 59 | 59 | 59 | 59 | 60 | 61 | 62 | 63 | 64 | 64 | 64 | 64 | 64 | 63 | 63 | 62 | 62 | 62 | 61 | 60 | 59 | 58 |
| Heat Index (°F) | 75 | 78 | 81 | 83 | 85 | 85 | 86 | 87 | 86 | 83 | 81 | 78 | 76 | |||||||||||
| Surface Wind (mph) | 6 | 6 | 6 | 6 | 7 | 8 | 9 | 10 | 11 | 13 | 14 | 15 | 16 | 18 | 18 | 18 | 17 | 16 | 16 | 16 | 16 | 16 | 16 | 16 |
| Wind Dir | S | SSE | SE | ESE | ESE | ESE | SE | SSE | SSE | SSE | SSE | S | S | S | S | S | S | S | S | S | S | S | S | S |
| Gust | 13 | 15 | 17 | 20 | 21 | 23 | 24 | 25 | 28 | 29 | 29 | 28 | 25 | 26 | 26 | 26 | 26 | 26 | 26 | |||||
| Sky Cover (%) | 57 | 60 | 63 | 73 | 69 | 65 | 62 | 51 | 40 | 49 | 61 | 73 | 64 | 54 | 45 | 45 | 45 | 46 | 37 | 28 | 19 | 18 | 17 | 17 |
| Precipitation Potential (%) | 24 | 32 | 40 | 33 | 27 | 20 | 16 | 13 | 9 | 9 | 10 | 10 | 10 | 10 | 10 | 10 | 10 | 1 | 1 | 1 | 1 | 1 | 1 | 3 |
| Relative Humidity (%) | 81 | 83 | 84 | 86 | 87 | 86 | 83 | 77 | 71 | 65 | 61 | 58 | 56 | 53 | 50 | 48 | 46 | 47 | 51 | 54 | 56 | 58 | 60 | 61 |
| Rain | SChc | Chc | Chc | Chc | Chc | SChc | SChc | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
| Thunder | SChc | SChc | SChc | SChc | SChc | SChc | SChc | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
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