| Point Forecast: 3 Miles NW Merrillville IN 41.49N 87.35W |
Last Update: 5:36 am CDT Jul 17, 2026 |
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| Date | 07/17 | 07/18 | ||||||||||||||||||||||
| Hour (CDT) | 09 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 00 | 01 | 02 | 03 | 04 | 05 | 06 | 07 | 08 |
| Temperature (°C) | 28 | 29 | 31 | 31 | 31 | 31 | 31 | 30 | 29 | 29 | 28 | 27 | 26 | 25 | 24 | 24 | 23 | 23 | 23 | 23 | 23 | 23 | 23 | 26 |
| Dewpoint (°C) | 23 | 23 | 23 | 23 | 23 | 23 | 23 | 23 | 23 | 23 | 23 | 23 | 23 | 23 | 23 | 23 | 23 | 22 | 22 | 22 | 22 | 22 | 22 | 23 |
| Heat Index (°C) | 31 | 33 | 35 | 36 | 36 | 36 | 35 | 34 | 33 | 33 | 31 | 30 | 26 | 25 | 24 | 24 | 26 | |||||||
| Surface Wind (mph) | 3 | 5 | 6 | 6 | 7 | 7 | 7 | 6 | 6 | 6 | 6 | 6 | 5 | 5 | 5 | 6 | 6 | 7 | 7 | 7 | 7 | 8 | 9 | 9 |
| Wind Dir | S | SSW | SSW | SW | SW | SW | SW | SW | SW | SSW | SSW | SSW | SSW | SW | SW | SW | SW | SW | SW | SW | WSW | WSW | WSW | WSW |
| Gust | ||||||||||||||||||||||||
| Sky Cover (%) | 64 | 61 | 61 | 61 | 61 | 71 | 70 | 78 | 67 | 59 | 67 | 58 | 48 | 49 | 47 | 49 | 44 | 41 | 45 | 41 | 35 | 40 | 28 | 21 |
| Precipitation Potential (%) | 18 | 19 | 21 | 26 | 36 | 52 | 38 | 44 | 36 | 33 | 26 | 21 | 17 | 16 | 12 | 10 | 8 | 9 | 9 | 6 | 4 | 2 | 0 | 6 |
| Relative Humidity (%) | 76 | 69 | 64 | 62 | 61 | 62 | 64 | 68 | 70 | 71 | 73 | 78 | 84 | 88 | 91 | 94 | 96 | 96 | 95 | 96 | 97 | 98 | 94 | 85 |
| Rain | SChc | SChc | SChc | Chc | Chc | Chc | Chc | Chc | Chc | Chc | Chc | SChc | SChc | SChc | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
| Thunder | SChc | SChc | SChc | Chc | Chc | Chc | Chc | Chc | Chc | Chc | Chc | SChc | SChc | SChc | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
| Date | 07/19 | |||||||||||||||||||||||
| Hour (CDT) | 09 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 00 | 01 | 02 | 03 | 04 | 05 | 06 | 07 | 08 |
| Temperature (°C) | 28 | 30 | 31 | 32 | 32 | 31 | 29 | 28 | 27 | 26 | 25 | 24 | 23 | 22 | 21 | 21 | 20 | 19 | 19 | 19 | 19 | 19 | 19 | 21 |
| Dewpoint (°C) | 23 | 24 | 24 | 24 | 24 | 24 | 23 | 23 | 22 | 22 | 21 | 20 | 20 | 19 | 19 | 18 | 18 | 18 | 18 | 18 | 18 | 18 | 18 | 18 |
| Heat Index (°C) | 32 | 34 | 37 | 38 | 38 | 36 | 34 | 32 | 29 | 28 | 25 | 24 | ||||||||||||
| Surface Wind (mph) | 10 | 11 | 11 | 11 | 11 | 11 | 11 | 11 | 10 | 10 | 9 | 8 | 7 | 7 | 6 | 6 | 6 | 5 | 5 | 5 | 5 | 5 | 5 | 5 |
| Wind Dir | WSW | WSW | W | W | WNW | NW | NNW | N | N | NNE | NNE | NNE | NNE | NNE | NNE | N | N | NNE | NNE | NNE | NE | NE | NE | NE |
| Gust | 20 | 20 | 20 | 20 | ||||||||||||||||||||
| Sky Cover (%) | 24 | 30 | 31 | 53 | 59 | 68 | 62 | 47 | 43 | 31 | 9 | 14 | 14 | 13 | 15 | 16 | 18 | 18 | 19 | 19 | 17 | 14 | 12 | 15 |
| Precipitation Potential (%) | 12 | 19 | 26 | 39 | 52 | 54 | 56 | 58 | 63 | 33 | 3 | 3 | 3 | 3 | 3 | 3 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| Relative Humidity (%) | 77 | 71 | 66 | 64 | 63 | 66 | 71 | 74 | 76 | 76 | 76 | 79 | 82 | 85 | 87 | 88 | 89 | 90 | 92 | 94 | 95 | 94 | 90 | 84 |
| Rain | -- | SChc | Chc | Chc | Chc | Chc | Lkly | Lkly | Lkly | Chc | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
| Thunder | -- | SChc | Chc | Chc | Chc | Chc | Chc | Chc | Chc | Chc | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
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