| Point Forecast: 4 Miles ESE Petersburg IL 39.98N 89.8W (Elev. 600 ft) |
Last Update: 7:42 pm CDT May 23, 2024 |
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| Date | 05/23 | 05/24 | ||||||||||||||||||||||
| Hour (CDT) | 20 | 21 | 22 | 23 | 00 | 01 | 02 | 03 | 04 | 05 | 06 | 07 | 08 | 09 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 |
| Temperature (°F) | 75 | 73 | 71 | 69 | 68 | 67 | 66 | 66 | 66 | 66 | 64 | 66 | 68 | 71 | 75 | 77 | 78 | 80 | 78 | 79 | 81 | 79 | 78 | 76 |
| Dewpoint (°F) | 62 | 64 | 64 | 64 | 63 | 64 | 64 | 64 | 63 | 64 | 64 | 65 | 67 | 67 | 68 | 68 | 68 | 68 | 67 | 67 | 67 | 67 | 67 | 66 |
| Heat Index (°F) | 75 | 75 | 77 | 78 | 82 | 78 | 81 | 83 | 81 | 78 | 76 | |||||||||||||
| Surface Wind (mph) | 5 | 5 | 6 | 6 | 6 | 7 | 7 | 7 | 8 | 8 | 9 | 10 | 11 | 13 | 14 | 14 | 14 | 14 | 14 | 13 | 13 | 13 | 11 | 11 |
| Wind Dir | SSE | SE | SE | SE | SE | SE | SE | SSE | SSE | SSE | SSE | SSE | SSE | S | S | S | S | S | S | S | S | S | SSW | SSW |
| Gust | 15 | 15 | 15 | 15 | 16 | 18 | 20 | 21 | 22 | 23 | 22 | 22 | 22 | 22 | 22 | 22 | 21 | 20 | 18 | |||||
| Sky Cover (%) | 18 | 17 | 17 | 17 | 16 | 16 | 25 | 34 | 43 | 45 | 47 | 49 | 52 | 55 | 58 | 58 | 59 | 65 | 63 | 53 | 50 | 58 | 66 | 73 |
| Precipitation Potential (%) | 0 | 0 | 0 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 3 | 7 | 7 | 7 | 18 | 52 | 55 | 65 | 63 | 46 | 49 | 46 | 45 | 38 |
| Relative Humidity (%) | 64 | 73 | 79 | 82 | 84 | 90 | 93 | 93 | 90 | 93 | 100 | 97 | 97 | 87 | 79 | 74 | 71 | 67 | 69 | 67 | 63 | 67 | 69 | 71 |
| Rain | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | SChc | Chc | Lkly | Lkly | Lkly | Chc | Chc | Chc | Chc | Chc |
| Thunder | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | SChc | Chc | Chc | Chc | Chc | Chc | Chc | Chc | Chc | Chc |
| Date | 05/25 | |||||||||||||||||||||||
| Hour (CDT) | 20 | 21 | 22 | 23 | 00 | 01 | 02 | 03 | 04 | 05 | 06 | 07 | 08 | 09 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 |
| Temperature (°F) | 71 | 69 | 67 | 66 | 66 | 65 | 63 | 61 | 59 | 58 | 58 | 57 | 60 | 63 | 66 | 69 | 71 | 74 | 75 | 76 | 78 | 77 | 77 | 76 |
| Dewpoint (°F) | 66 | 66 | 66 | 65 | 64 | 63 | 61 | 59 | 57 | 56 | 54 | 53 | 53 | 53 | 53 | 53 | 53 | 53 | 53 | 53 | 53 | 54 | 54 | 55 |
| Heat Index (°F) | 75 | 76 | 78 | 77 | 77 | 76 | ||||||||||||||||||
| Surface Wind (mph) | 9 | 8 | 8 | 8 | 9 | 9 | 9 | 8 | 8 | 8 | 8 | 8 | 7 | 7 | 7 | 6 | 5 | 5 | 5 | 5 | 5 | 5 | 5 | 5 |
| Wind Dir | SW | SW | WSW | WSW | WNW | WNW | NW | NW | NNW | NNW | NNW | NNW | N | N | N | NNE | NNE | NNE | NE | E | E | E | E | ESE |
| Gust | 17 | 15 | 15 | 16 | 17 | 17 | 17 | 18 | 17 | 16 | 15 | |||||||||||||
| Sky Cover (%) | 75 | 76 | 77 | 66 | 54 | 43 | 32 | 22 | 12 | 8 | 5 | 2 | 3 | 3 | 4 | 7 | 10 | 13 | 12 | 12 | 12 | 17 | 23 | 28 |
| Precipitation Potential (%) | 38 | 38 | 42 | 42 | 42 | 3 | 3 | 3 | 3 | 3 | 3 | 1 | 1 | 1 | 1 | 1 | 1 | 2 | 2 | 2 | 2 | 2 | 2 | 9 |
| Relative Humidity (%) | 84 | 90 | 97 | 97 | 93 | 93 | 93 | 93 | 93 | 93 | 86 | 86 | 78 | 70 | 63 | 57 | 53 | 48 | 46 | 45 | 42 | 45 | 45 | 48 |
| Rain | Chc | Chc | Chc | Chc | Chc | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
| Thunder | Chc | Chc | Chc | Chc | Chc | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
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