| Point Forecast: Fairmount IL 40.04N 87.81W (Elev. 676 ft) |
Last Update: 6:11 pm CDT Sep 9, 2026 |
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| Date | 09/09 | 09/10 | ||||||||||||||||||||||
| Hour (CDT) | 19 | 20 | 21 | 22 | 23 | 00 | 01 | 02 | 03 | 04 | 05 | 06 | 07 | 08 | 09 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 |
| Temperature (°F) | 79 | 73 | 72 | 71 | 70 | 70 | 70 | 70 | 70 | 70 | 69 | 69 | 69 | 71 | 71 | 73 | 74 | 75 | 76 | 77 | 78 | 79 | 77 | 76 |
| Dewpoint (°F) | 73 | 73 | 72 | 71 | 70 | 70 | 70 | 70 | 70 | 70 | 69 | 69 | 69 | 71 | 71 | 72 | 72 | 72 | 72 | 72 | 71 | 70 | 69 | 68 |
| Heat Index (°F) | 79 | 75 | 76 | 77 | 78 | 79 | 77 | 76 | ||||||||||||||||
| Surface Wind (mph) | 6 | 6 | 5 | 3 | 2 | 2 | 2 | 2 | 2 | 3 | 2 | 2 | 2 | 2 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 5 | 3 | 3 |
| Wind Dir | NW | NW | NW | NW | NW | W | W | W | W | W | W | WSW | NW | NW | NW | NNW | NW | NW | NNW | N | N | N | N | NNE |
| Gust | ||||||||||||||||||||||||
| Sky Cover (%) | 44 | 54 | 62 | 59 | 73 | 83 | 71 | 80 | 83 | 82 | 92 | 80 | 73 | 90 | 90 | 87 | 93 | 83 | 88 | 91 | 81 | 87 | 69 | 56 |
| Precipitation Potential (%) | 9 | 8 | 7 | 7 | 7 | 8 | 8 | 10 | 15 | 17 | 25 | 20 | 29 | 41 | 51 | 64 | 67 | 53 | 44 | 36 | 24 | 18 | 18 | 8 |
| Relative Humidity (%) | 82 | 100 | 100 | 100 | 100 | 100 | 100 | 100 | 100 | 100 | 100 | 100 | 100 | 100 | 100 | 97 | 93 | 90 | 87 | 85 | 79 | 74 | 76 | 76 |
| Rain | -- | -- | -- | -- | -- | -- | -- | -- | SChc | SChc | Chc | SChc | Chc | Chc | Chc | Lkly | Lkly | Chc | Chc | Chc | SChc | SChc | SChc | -- |
| Thunder | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | SChc | SChc | SChc | SChc | SChc | SChc | SChc | SChc | -- |
| Date | 09/11 | |||||||||||||||||||||||
| Hour (CDT) | 19 | 20 | 21 | 22 | 23 | 00 | 01 | 02 | 03 | 04 | 05 | 06 | 07 | 08 | 09 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 |
| Temperature (°F) | 74 | 70 | 68 | 66 | 65 | 64 | 63 | 62 | 61 | 60 | 59 | 59 | 59 | 62 | 66 | 71 | 74 | 77 | 78 | 80 | 80 | 80 | 79 | 77 |
| Dewpoint (°F) | 68 | 66 | 65 | 65 | 63 | 62 | 61 | 61 | 60 | 59 | 58 | 57 | 58 | 61 | 62 | 63 | 64 | 65 | 65 | 65 | 65 | 65 | 66 | 66 |
| Heat Index (°F) | 77 | 78 | 82 | 82 | 82 | 79 | 77 | |||||||||||||||||
| Surface Wind (mph) | 2 | 2 | 2 | 3 | 3 | 2 | 2 | 2 | 2 | 3 | 2 | 2 | 2 | 3 | 5 | 5 | 5 | 3 | 3 | 3 | 3 | 3 | 3 | 2 |
| Wind Dir | NE | E | NNE | NNE | NE | NE | ENE | ENE | ENE | ENE | ENE | ENE | ENE | E | E | E | E | ESE | ESE | ESE | ESE | ESE | ESE | ESE |
| Gust | ||||||||||||||||||||||||
| Sky Cover (%) | 35 | 53 | 47 | 45 | 52 | 56 | 45 | 53 | 37 | 25 | 25 | 22 | 11 | 30 | 26 | 21 | 27 | 32 | 38 | 36 | 35 | 33 | 35 | 36 |
| Precipitation Potential (%) | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 2 | 2 | 2 | 2 | 2 | 2 | 3 | 3 | 3 | 3 | 3 | 3 |
| Relative Humidity (%) | 82 | 87 | 90 | 97 | 93 | 93 | 93 | 97 | 97 | 96 | 96 | 93 | 96 | 97 | 87 | 76 | 71 | 67 | 64 | 60 | 60 | 60 | 64 | 69 |
| Rain | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
| Thunder | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
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