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| Point Forecast: 3 Miles SSE Merna IL 40.5N 88.84W (Elev. 833 ft) |
Last Update: 3:24 am CDT Aug 4, 2020 |
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| Date | 08/04 | 08/05 | ||||||||||||||||||||||
| Hour (CDT) | 04 | 05 | 06 | 07 | 08 | 09 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 00 | 01 | 02 | 03 |
| Temperature (°F) | 57 | 57 | 56 | 56 | 59 | 63 | 65 | 68 | 70 | 72 | 72 | 73 | 73 | 73 | 72 | 70 | 66 | 63 | 60 | 58 | 56 | 55 | 54 | 54 |
| Dewpoint (°F) | 55 | 54 | 54 | 54 | 55 | 57 | 58 | 57 | 56 | 55 | 54 | 54 | 54 | 54 | 54 | 54 | 54 | 53 | 53 | 52 | 52 | 51 | 50 | 50 |
| Heat Index (°F) | ||||||||||||||||||||||||
| Surface Wind (mph) | 8 | 8 | 9 | 9 | 10 | 10 | 11 | 13 | 13 | 13 | 13 | 11 | 10 | 9 | 9 | 8 | 7 | 6 | 5 | 5 | 3 | 3 | 3 | 3 |
| Wind Dir | N | N | N | N | N | N | N | N | N | N | N | N | N | N | N | N | N | N | N | N | NNE | NNE | N | NNW |
| Gust | 16 | 17 | 18 | 18 | 18 | 18 | 18 | 18 | 17 | 16 | 15 | |||||||||||||
| Sky Cover (%) | 49 | 50 | 54 | 46 | 46 | 41 | 41 | 42 | 43 | 44 | 41 | 38 | 35 | 32 | 29 | 26 | 22 | 18 | 15 | 15 | 15 | 15 | 15 | 20 |
| Precipitation Potential (%) | 5 | 5 | 5 | 5 | 5 | 5 | 4 | 4 | 4 | 4 | 4 | 5 | 5 | 4 | 3 | 2 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 |
| Relative Humidity (%) | 93 | 90 | 93 | 93 | 87 | 81 | 78 | 68 | 61 | 55 | 53 | 51 | 51 | 51 | 53 | 57 | 65 | 70 | 78 | 80 | 86 | 86 | 86 | 86 |
| Rain | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
| Thunder | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
| Date | 08/06 | |||||||||||||||||||||||
| Hour (CDT) | 04 | 05 | 06 | 07 | 08 | 09 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 00 | 01 | 02 | 03 |
| Temperature (°F) | 52 | 52 | 52 | 55 | 60 | 64 | 68 | 69 | 70 | 72 | 74 | 75 | 75 | 75 | 73 | 71 | 67 | 64 | 61 | 59 | 58 | 58 | 57 | 56 |
| Dewpoint (°F) | 50 | 50 | 51 | 52 | 53 | 53 | 54 | 54 | 55 | 55 | 55 | 55 | 55 | 55 | 56 | 57 | 56 | 55 | 54 | 54 | 54 | 54 | 54 | 53 |
| Heat Index (°F) | 75 | 75 | 75 | |||||||||||||||||||||
| Surface Wind (mph) | 3 | 3 | 3 | 3 | 3 | 5 | 5 | 5 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 2 | 2 | 2 | 2 | 2 |
| Wind Dir | NW | WNW | W | WSW | W | W | WNW | WNW | NW | NW | NW | WNW | WNW | W | S | SSE | SSE | SSE | SE | SSE | SSE | SSE | SSE | SSE |
| Gust | ||||||||||||||||||||||||
| Sky Cover (%) | 20 | 20 | 21 | 22 | 23 | 25 | 27 | 33 | 39 | 40 | 44 | 48 | 51 | 45 | 39 | 33 | 29 | 24 | 20 | 20 | 21 | 21 | 23 | 26 |
| Precipitation Potential (%) | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 1 | 1 |
| Relative Humidity (%) | 93 | 93 | 96 | 90 | 78 | 67 | 61 | 59 | 59 | 55 | 51 | 50 | 50 | 50 | 55 | 61 | 68 | 73 | 78 | 83 | 86 | 86 | 90 | 90 |
| Rain | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
| Thunder | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
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