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| Point Forecast: 3 Miles ENE Lacon IL 41.04N 89.33W (Elev. 198 m) |
Last Update: 6:37 am CDT May 15, 2021 |
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| Date | 05/15 | 05/16 | ||||||||||||||||||||||
| Hour (CDT) | 07 | 08 | 09 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 00 | 01 | 02 | 03 | 04 | 05 | 06 |
| Temperature (°C) | 11 | 11 | 12 | 13 | 12 | 13 | 14 | 15 | 17 | 17 | 17 | 16 | 16 | 15 | 14 | 14 | 13 | 13 | 13 | 12 | 12 | 11 | 10 | 10 |
| Dewpoint (°C) | 8 | 9 | 9 | 9 | 10 | 11 | 11 | 11 | 12 | 12 | 12 | 11 | 11 | 11 | 11 | 11 | 11 | 10 | 10 | 10 | 10 | 9 | 9 | 9 |
| Heat Index (°C) | ||||||||||||||||||||||||
| Surface Wind (mph) | 6 | 6 | 7 | 8 | 8 | 9 | 10 | 10 | 9 | 9 | 9 | 9 | 9 | 7 | 6 | 5 | 5 | 3 | 5 | 5 | 5 | 5 | 3 | 3 |
| Wind Dir | SE | SSE | SSE | S | S | S | S | S | S | S | S | S | S | S | SSE | SSE | SSE | SSE | S | S | S | S | S | SSE |
| Gust | ||||||||||||||||||||||||
| Sky Cover (%) | 97 | 97 | 98 | 98 | 98 | 97 | 98 | 98 | 98 | 98 | 98 | 99 | 97 | 96 | 97 | 86 | 85 | 83 | 72 | 66 | 58 | 52 | 53 | 57 |
| Precipitation Potential (%) | 64 | 65 | 63 | 58 | 62 | 60 | 42 | 39 | 41 | 36 | 46 | 46 | 33 | 22 | 9 | 5 | 6 | 5 | 4 | 4 | 4 | 2 | 2 | 2 |
| Relative Humidity (%) | 83 | 89 | 83 | 83 | 86 | 86 | 83 | 78 | 72 | 70 | 70 | 72 | 72 | 75 | 80 | 80 | 83 | 80 | 83 | 86 | 89 | 89 | 96 | 96 |
| Rain | Lkly | Lkly | Lkly | Lkly | Lkly | Lkly | Chc | Chc | Chc | Chc | Chc | Chc | Chc | SChc | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
| Thunder | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
| Date | 05/17 | |||||||||||||||||||||||
| Hour (CDT) | 07 | 08 | 09 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 00 | 01 | 02 | 03 | 04 | 05 | 06 |
| Temperature (°C) | 11 | 13 | 16 | 18 | 20 | 21 | 22 | 22 | 22 | 22 | 22 | 21 | 19 | 18 | 17 | 16 | 16 | 15 | 15 | 14 | 14 | 14 | 14 | 14 |
| Dewpoint (°C) | 10 | 11 | 11 | 12 | 12 | 12 | 12 | 12 | 13 | 13 | 14 | 13 | 13 | 13 | 13 | 13 | 13 | 13 | 13 | 13 | 13 | 13 | 13 | 13 |
| Heat Index (°C) | ||||||||||||||||||||||||
| Surface Wind (mph) | 2 | 3 | 5 | 6 | 7 | 7 | 8 | 8 | 8 | 7 | 7 | 6 | 7 | 7 | 6 | 6 | 6 | 5 | 5 | 5 | 5 | 6 | 6 | 6 |
| Wind Dir | SE | SE | SE | SE | SSE | SSE | SSE | SSE | SSE | SSE | SSE | SSE | SSE | SSE | SSE | SE | SE | SE | ESE | ESE | ESE | E | E | E |
| Gust | ||||||||||||||||||||||||
| Sky Cover (%) | 57 | 57 | 50 | 56 | 65 | 67 | 65 | 67 | 71 | 76 | 79 | 81 | 76 | 76 | 75 | 75 | 75 | 75 | 75 | 77 | 82 | 84 | 83 | 81 |
| Precipitation Potential (%) | 4 | 4 | 4 | 3 | 3 | 3 | 18 | 18 | 18 | 18 | 18 | 18 | 54 | 54 | 54 | 54 | 54 | 54 | 64 | 64 | 64 | 64 | 64 | 64 |
| Relative Humidity (%) | 96 | 86 | 75 | 65 | 61 | 57 | 55 | 53 | 55 | 57 | 61 | 61 | 68 | 73 | 78 | 84 | 87 | 90 | 90 | 93 | 93 | 93 | 93 | 93 |
| Rain | -- | -- | -- | -- | -- | -- | SChc | SChc | SChc | SChc | SChc | SChc | Chc | Chc | Chc | Chc | Chc | Chc | Lkly | Lkly | Lkly | Lkly | Lkly | Lkly |
| Thunder | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | SChc | SChc | SChc | SChc | SChc | SChc | SChc | SChc | SChc | SChc | SChc | SChc |
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