| Point Forecast: Sparta IL 38.16N 89.72W (Elev. 489 ft) |
Last Update: 12:37 am CDT May 20, 2024 |
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| Date | 05/20 | 05/21 | ||||||||||||||||||||||
| 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) | 71 | 69 | 67 | 66 | 66 | 68 | 72 | 76 | 78 | 81 | 82 | 83 | 84 | 84 | 84 | 83 | 81 | 80 | 76 | 74 | 71 | 69 | 69 | 69 |
| Dewpoint (°F) | 62 | 61 | 61 | 62 | 62 | 63 | 63 | 64 | 65 | 65 | 65 | 65 | 65 | 64 | 64 | 64 | 65 | 66 | 66 | 65 | 64 | 64 | 64 | 63 |
| Heat Index (°F) | 76 | 78 | 83 | 84 | 85 | 86 | 85 | 85 | 84 | 83 | 82 | 76 | ||||||||||||
| Surface Wind (mph) | 5 | 5 | 5 | 5 | 6 | 6 | 7 | 8 | 10 | 11 | 11 | 13 | 10 | 11 | 11 | 10 | 9 | 8 | 7 | 7 | 7 | 7 | 7 | 7 |
| Wind Dir | S | S | S | S | S | S | S | S | S | S | S | S | S | S | S | S | S | S | S | S | S | S | S | S |
| Gust | ||||||||||||||||||||||||
| Sky Cover (%) | 6 | 29 | 52 | 55 | 58 | 9 | 14 | 15 | 26 | 34 | 27 | 31 | 33 | 39 | 56 | 59 | 37 | 26 | 2 | 0 | 0 | 3 | 12 | 15 |
| Precipitation Potential (%) | 1 | 3 | 5 | 4 | 3 | 0 | 1 | 1 | 2 | 1 | 1 | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 5 | 4 | 3 | 3 | 3 | 3 |
| Relative Humidity (%) | 73 | 76 | 81 | 87 | 87 | 84 | 73 | 66 | 64 | 58 | 56 | 55 | 53 | 51 | 51 | 53 | 58 | 62 | 71 | 74 | 79 | 84 | 84 | 81 |
| Rain | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
| Thunder | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
| Date | 05/22 | |||||||||||||||||||||||
| 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) | 68 | 68 | 67 | 67 | 67 | 70 | 74 | 77 | 80 | 82 | 84 | 85 | 86 | 87 | 87 | 87 | 85 | 84 | 82 | 81 | 79 | 78 | 78 | 77 |
| Dewpoint (°F) | 63 | 63 | 63 | 64 | 64 | 65 | 66 | 67 | 68 | 68 | 68 | 68 | 68 | 67 | 67 | 67 | 66 | 66 | 66 | 65 | 65 | 65 | 65 | 65 |
| Heat Index (°F) | 77 | 83 | 85 | 87 | 88 | 89 | 90 | 90 | 90 | 87 | 86 | 84 | 83 | 79 | 78 | 78 | 77 | |||||||
| Surface Wind (mph) | 7 | 7 | 7 | 8 | 8 | 9 | 10 | 13 | 14 | 15 | 15 | 16 | 17 | 18 | 18 | 18 | 18 | 17 | 16 | 16 | 15 | 15 | 14 | 14 |
| Wind Dir | S | S | S | S | S | S | S | S | S | S | S | S | S | S | S | S | S | S | S | S | S | S | S | S |
| Gust | 21 | 22 | 23 | 24 | 25 | 26 | 28 | 29 | 29 | 28 | 26 | 26 | 25 | 25 | 24 | 23 | 22 | |||||||
| Sky Cover (%) | 45 | 45 | 46 | 32 | 26 | 18 | 14 | 10 | 6 | 10 | 13 | 17 | 13 | 9 | 5 | 11 | 16 | 22 | 32 | 43 | 53 | 56 | 60 | 63 |
| Precipitation Potential (%) | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 3 | 3 | 3 | 3 | 3 | 3 | 22 | 22 | 22 | 22 | 22 | 22 | 49 |
| Relative Humidity (%) | 84 | 84 | 87 | 90 | 90 | 84 | 76 | 71 | 67 | 63 | 59 | 57 | 55 | 52 | 52 | 52 | 53 | 55 | 58 | 58 | 62 | 64 | 64 | 67 |
| Rain | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | SChc | SChc | SChc | SChc | SChc | SChc | Chc |
| Thunder | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | SChc | SChc | SChc | SChc | SChc | SChc | Chc |
