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| Point Forecast: Grinnell IA 41.75N 92.72W |
Last Update: 9:06 am CDT Aug 1, 2021 |
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| Date | 08/01 | 08/02 | ||||||||||||||||||||||
| Hour (CDT) | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 00 | 01 | 02 | 03 | 04 | 05 | 06 | 07 | 08 | 09 |
| Temperature (°C) | 22 | 24 | 25 | 26 | 26 | 27 | 26 | 26 | 25 | 24 | 22 | 20 | 17 | 17 | 16 | 15 | 14 | 14 | 13 | 13 | 13 | 13 | 16 | 19 |
| Dewpoint (°C) | 15 | 14 | 13 | 13 | 13 | 13 | 14 | 14 | 14 | 15 | 15 | 15 | 15 | 14 | 13 | 13 | 13 | 13 | 13 | 12 | 12 | 13 | 13 | 14 |
| Heat Index (°C) | 24 | 25 | 26 | 26 | 27 | 26 | 26 | 25 | 24 | |||||||||||||||
| Surface Wind (mph) | 9 | 9 | 10 | 10 | 10 | 10 | 10 | 9 | 8 | 7 | 6 | 6 | 5 | 5 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 2 | 3 |
| Wind Dir | N | N | N | N | N | N | N | N | N | N | N | NNE | NE | NE | NE | ENE | ENE | ENE | NE | NNE | N | N | N | NE |
| Gust | ||||||||||||||||||||||||
| Sky Cover (%) | 1 | 2 | 3 | 4 | 7 | 11 | 14 | 14 | 11 | 9 | 8 | 6 | 4 | 3 | 2 | 3 | 4 | 4 | 4 | 5 | 6 | 5 | 6 | 4 |
| Precipitation Potential (%) | 0 | 0 | 0 | 1 | 1 | 1 | 1 | 1 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 1 | 1 |
| Relative Humidity (%) | 64 | 55 | 48 | 47 | 45 | 44 | 47 | 48 | 52 | 58 | 66 | 73 | 87 | 87 | 84 | 90 | 90 | 93 | 96 | 96 | 96 | 96 | 84 | 73 |
| Rain | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
| Thunder | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
| Date | 08/03 | |||||||||||||||||||||||
| Hour (CDT) | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 00 | 01 | 02 | 03 | 04 | 05 | 06 | 07 | 08 | 09 |
| Temperature (°C) | 22 | 23 | 24 | 26 | 26 | 26 | 26 | 26 | 26 | 24 | 22 | 20 | 18 | 17 | 17 | 16 | 16 | 15 | 14 | 14 | 14 | 15 | 17 | 20 |
| Dewpoint (°C) | 15 | 15 | 14 | 14 | 14 | 14 | 14 | 14 | 15 | 16 | 16 | 15 | 15 | 15 | 14 | 14 | 14 | 14 | 14 | 14 | 14 | 14 | 14 | 16 |
| Heat Index (°C) | 24 | 26 | 26 | 26 | 26 | 26 | 26 | 24 | ||||||||||||||||
| Surface Wind (mph) | 3 | 3 | 3 | 5 | 5 | 5 | 3 | 3 | 3 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 2 |
| Wind Dir | N | N | N | N | N | N | NNE | NE | E | ESE | ESE | SSE | SSE | S | S | SSW | SSW | SW | SW | SW | SW | SW | SW | SW |
| Gust | ||||||||||||||||||||||||
| Sky Cover (%) | 6 | 10 | 20 | 30 | 34 | 34 | 33 | 31 | 30 | 30 | 25 | 16 | 11 | 9 | 4 | 2 | 3 | 5 | 6 | 6 | 5 | 5 | 5 | 6 |
| Precipitation Potential (%) | 1 | 1 | 1 | 2 | 2 | 2 | 2 | 2 | 2 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 |
| Relative Humidity (%) | 66 | 62 | 54 | 50 | 50 | 50 | 50 | 50 | 52 | 60 | 68 | 73 | 81 | 87 | 87 | 90 | 93 | 93 | 96 | 100 | 96 | 93 | 84 | 76 |
| Rain | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
| Thunder | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
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