| Point Forecast: Grundy Center IA 42.36N 92.76W |
Last Update: 7:56 pm CDT Aug 7, 2026 |
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| Date | 08/07 | 08/08 | ||||||||||||||||||||||
| Hour (CDT) | 22 | 23 | 00 | 01 | 02 | 03 | 04 | 05 | 06 | 07 | 08 | 09 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 |
| Temperature (°C) | 22 | 21 | 20 | 19 | 18 | 17 | 16 | 16 | 15 | 15 | 16 | 18 | 20 | 22 | 23 | 24 | 25 | 26 | 26 | 26 | 26 | 25 | 23 | 21 |
| Dewpoint (°C) | 21 | 20 | 19 | 18 | 17 | 17 | 16 | 14 | 14 | 14 | 16 | 17 | 17 | 17 | 17 | 18 | 18 | 19 | 19 | 19 | 19 | 20 | 19 | 19 |
| Heat Index (°C) | 24 | 25 | 26 | 26 | 26 | 26 | 25 | |||||||||||||||||
| Surface Wind (mph) | 6 | 6 | 6 | 6 | 6 | 6 | 6 | 5 | 5 | 5 | 3 | 2 | 2 | 2 | 2 | 2 | 2 | 3 | 5 | 5 | 6 | 5 | 5 | 5 |
| Wind Dir | WNW | NW | NW | NW | NW | NW | NW | NW | NNW | NNW | NNW | N | NNE | ENE | E | ESE | SE | SE | SSE | SSE | SSE | SSE | SSE | SSE |
| Gust | ||||||||||||||||||||||||
| Sky Cover (%) | 46 | 47 | 33 | 16 | 11 | 13 | 10 | 10 | 11 | 7 | 5 | 3 | 6 | 7 | 5 | 8 | 12 | 12 | 20 | 18 | 12 | 21 | 25 | 23 |
| Precipitation Potential (%) | 4 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 1 | 1 | 0 |
| Relative Humidity (%) | 93 | 97 | 97 | 93 | 93 | 97 | 97 | 93 | 93 | 93 | 97 | 93 | 84 | 76 | 71 | 66 | 67 | 67 | 64 | 67 | 67 | 74 | 81 | 87 |
| Rain | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
| Thunder | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
| Date | 08/09 | |||||||||||||||||||||||
| Hour (CDT) | 22 | 23 | 00 | 01 | 02 | 03 | 04 | 05 | 06 | 07 | 08 | 09 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 |
| Temperature (°C) | 21 | 20 | 20 | 20 | 20 | 19 | 19 | 19 | 19 | 19 | 21 | 22 | 23 | 25 | 26 | 27 | 28 | 29 | 29 | 29 | 29 | 28 | 27 | 26 |
| Dewpoint (°C) | 19 | 18 | 18 | 18 | 19 | 19 | 19 | 19 | 19 | 19 | 21 | 22 | 22 | 23 | 23 | 24 | 24 | 25 | 25 | 25 | 24 | 24 | 23 | 23 |
| Heat Index (°C) | 25 | 26 | 31 | 33 | 36 | 36 | 36 | 34 | 32 | 29 | 26 | |||||||||||||
| Surface Wind (mph) | 6 | 6 | 6 | 7 | 7 | 8 | 9 | 8 | 7 | 7 | 7 | 7 | 7 | 8 | 9 | 9 | 9 | 8 | 7 | 6 | 6 | 5 | 5 | 5 |
| Wind Dir | SSE | SSE | SSE | SSE | SSE | S | SSE | S | S | S | S | S | S | S | S | SSW | SSW | SSW | SSW | SSW | S | S | S | S |
| Gust | ||||||||||||||||||||||||
| Sky Cover (%) | 26 | 39 | 39 | 45 | 25 | 43 | 42 | 80 | 70 | 62 | 56 | 60 | 63 | 59 | 56 | 52 | 48 | 44 | 40 | 37 | 35 | 32 | 37 | 42 |
| Precipitation Potential (%) | 0 | 3 | 5 | 35 | 34 | 35 | 49 | 61 | 49 | 29 | 29 | 29 | 29 | 29 | 29 | 3 | 3 | 3 | 3 | 3 | 3 | 26 | 26 | 26 |
| Relative Humidity (%) | 90 | 90 | 90 | 90 | 93 | 97 | 97 | 97 | 100 | 100 | 100 | 100 | 93 | 88 | 85 | 82 | 80 | 77 | 77 | 77 | 77 | 77 | 82 | 88 |
| Rain | -- | -- | -- | Chc | Chc | Chc | Chc | Lkly | Chc | Chc | Chc | Chc | Chc | Chc | Chc | -- | -- | -- | -- | -- | -- | Chc | Chc | Chc |
| Thunder | -- | -- | -- | Chc | Chc | Chc | Chc | Chc | Chc | Chc | Chc | Chc | -- | -- | -- | -- | -- | -- | -- | -- | -- | SChc | SChc | SChc |
