| Point Forecast: 2 Miles W Merrillville IN 41.47N 87.35W |
Last Update: 2:46 pm CDT Aug 17, 2026 |
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| Date | 08/17 | 08/18 | ||||||||||||||||||||||
| Hour (CDT) | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 00 | 01 | 02 | 03 | 04 | 05 | 06 | 07 | 08 | 09 | 10 | 11 | 12 | 13 |
| Temperature (°F) | 75 | 75 | 74 | 74 | 73 | 70 | 69 | 67 | 66 | 65 | 65 | 64 | 62 | 62 | 62 | 61 | 62 | 63 | 66 | 71 | 74 | 76 | 77 | 78 |
| Dewpoint (°F) | 65 | 65 | 65 | 64 | 64 | 64 | 63 | 63 | 63 | 62 | 62 | 62 | 61 | 61 | 61 | 61 | 61 | 62 | 64 | 66 | 67 | 67 | 67 | 67 |
| Heat Index (°F) | 75 | 75 | 76 | 77 | 78 | |||||||||||||||||||
| Surface Wind (mph) | 9 | 8 | 8 | 7 | 6 | 3 | 1 | 1 | 1 | 1 | 2 | 2 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 5 | 6 | 7 | 8 | 9 |
| Wind Dir | N | N | N | N | N | N | N | N | N | SSW | SSW | SW | SW | SW | SW | WSW | WSW | WSW | WSW | WSW | WSW | WSW | WSW | WSW |
| Gust | 15 | 14 | 14 | 14 | 15 | |||||||||||||||||||
| Sky Cover (%) | 36 | 32 | 29 | 25 | 21 | 19 | 8 | 8 | 15 | 11 | 8 | 13 | 19 | 27 | 41 | 24 | 31 | 33 | 35 | 37 | 34 | 35 | 58 | 70 |
| Precipitation Potential (%) | 17 | 14 | 8 | 5 | 3 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 2 | 2 | 2 | 2 | 2 | 2 | 4 |
| Relative Humidity (%) | 72 | 72 | 73 | 71 | 73 | 81 | 81 | 86 | 88 | 90 | 91 | 92 | 96 | 96 | 96 | 100 | 97 | 96 | 93 | 85 | 81 | 74 | 71 | 70 |
| Rain | SChc | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
| Thunder | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
| Date | 08/19 | |||||||||||||||||||||||
| Hour (CDT) | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 00 | 01 | 02 | 03 | 04 | 05 | 06 | 07 | 08 | 09 | 10 | 11 | 12 | 13 |
| Temperature (°F) | 79 | 78 | 78 | 77 | 75 | 74 | 72 | 71 | 71 | 71 | 70 | 70 | 69 | 68 | 68 | 68 | 67 | 68 | 70 | 72 | 73 | 75 | 75 | 76 |
| Dewpoint (°F) | 67 | 68 | 68 | 68 | 68 | 68 | 68 | 68 | 68 | 68 | 67 | 68 | 67 | 67 | 67 | 66 | 66 | 67 | 68 | 68 | 68 | 68 | 67 | 67 |
| Heat Index (°F) | 79 | 78 | 78 | 77 | 75 | 75 | 75 | 76 | ||||||||||||||||
| Surface Wind (mph) | 9 | 9 | 9 | 8 | 8 | 7 | 6 | 5 | 5 | 5 | 5 | 5 | 5 | 5 | 3 | 3 | 3 | 2 | 3 | 3 | 5 | 5 | 5 | 6 |
| Wind Dir | WSW | WSW | WSW | WSW | SW | SW | SSW | SW | SW | WSW | WSW | WSW | W | W | W | WNW | NW | NW | NW | NW | NW | NNW | NNW | N |
| Gust | 15 | 15 | 15 | 14 | 13 | |||||||||||||||||||
| Sky Cover (%) | 71 | 55 | 67 | 66 | 70 | 79 | 75 | 63 | 63 | 68 | 66 | 66 | 68 | 74 | 71 | 76 | 72 | 52 | 56 | 57 | 56 | 54 | 52 | 50 |
| Precipitation Potential (%) | 4 | 10 | 11 | 20 | 18 | 62 | 62 | 62 | 62 | 62 | 62 | 57 | 57 | 57 | 57 | 57 | 57 | 8 | 8 | 8 | 8 | 8 | 8 | 12 |
| Relative Humidity (%) | 68 | 72 | 73 | 75 | 79 | 82 | 87 | 90 | 90 | 90 | 90 | 93 | 93 | 97 | 97 | 93 | 97 | 97 | 93 | 87 | 84 | 79 | 76 | 74 |
| Rain | -- | -- | -- | SChc | SChc | Lkly | Lkly | Lkly | Lkly | Lkly | Lkly | Lkly | Lkly | Lkly | Lkly | Lkly | Lkly | -- | -- | -- | -- | -- | -- | -- |
| Thunder | -- | -- | -- | SChc | SChc | Chc | Chc | Chc | Chc | Chc | Chc | SChc | SChc | SChc | SChc | SChc | SChc | -- | -- | -- | -- | -- | -- | -- |
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