| Point Forecast: Mason City IA 43.15N 93.19W |
Last Update: 5:57 pm CDT Jun 19, 2025 |
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| Date | 06/19 | 06/20 | ||||||||||||||||||||||
| Hour (CDT) | 18 | 19 | 20 | 21 | 22 | 23 | 00 | 01 | 02 | 03 | 04 | 05 | 06 | 07 | 08 | 09 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 |
| Temperature (°F) | 84 | 82 | 78 | 74 | 73 | 73 | 72 | 71 | 70 | 70 | 69 | 68 | 67 | 67 | 69 | 72 | 76 | 79 | 82 | 85 | 86 | 88 | 90 | 91 |
| Dewpoint (°F) | 61 | 64 | 65 | 65 | 64 | 63 | 62 | 62 | 62 | 62 | 63 | 62 | 63 | 63 | 65 | 66 | 67 | 68 | 69 | 71 | 72 | 73 | 74 | 75 |
| Heat Index (°F) | 84 | 83 | 78 | 76 | 79 | 85 | 90 | 92 | 96 | 99 | 102 | |||||||||||||
| Surface Wind (mph) | 9 | 9 | 8 | 8 | 8 | 9 | 10 | 11 | 11 | 11 | 13 | 13 | 14 | 13 | 14 | 15 | 15 | 16 | 17 | 18 | 20 | 20 | 20 | 20 |
| Wind Dir | SW | SSW | S | S | S | S | S | SSW | SSW | SSW | S | S | S | S | S | S | S | S | S | S | S | S | S | S |
| Gust | 20 | 21 | 21 | 21 | 21 | 21 | 21 | 23 | 23 | 24 | 25 | 25 | 26 | 28 | 29 | 29 | 29 | |||||||
| Sky Cover (%) | 10 | 11 | 6 | 4 | 3 | 16 | 39 | 41 | 62 | 68 | 76 | 79 | 80 | 73 | 74 | 67 | 55 | 49 | 47 | 42 | 38 | 31 | 23 | 16 |
| Precipitation Potential (%) | 0 | 0 | 0 | 1 | 1 | 5 | 10 | 16 | 31 | 59 | 66 | 72 | 68 | 53 | 45 | 33 | 17 | 14 | 12 | 9 | 6 | 6 | 6 | 4 |
| Relative Humidity (%) | 46 | 55 | 64 | 74 | 73 | 71 | 71 | 73 | 76 | 76 | 81 | 81 | 87 | 87 | 87 | 81 | 74 | 69 | 65 | 63 | 63 | 61 | 60 | 60 |
| Rain | -- | -- | -- | -- | -- | -- | -- | SChc | Chc | Lkly | Lkly | Lkly | Lkly | Chc | Chc | Chc | SChc | -- | -- | -- | -- | -- | -- | -- |
| Thunder | -- | -- | -- | -- | -- | -- | -- | SChc | Chc | Chc | Chc | Chc | Chc | Chc | Chc | Chc | SChc | -- | -- | -- | -- | -- | -- | -- |
| Date | 06/21 | |||||||||||||||||||||||
| Hour (CDT) | 18 | 19 | 20 | 21 | 22 | 23 | 00 | 01 | 02 | 03 | 04 | 05 | 06 | 07 | 08 | 09 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 |
| Temperature (°F) | 90 | 89 | 87 | 85 | 82 | 82 | 81 | 80 | 79 | 78 | 77 | 76 | 76 | 76 | 78 | 81 | 83 | 85 | 88 | 90 | 92 | 93 | 95 | 94 |
| Dewpoint (°F) | 75 | 74 | 73 | 72 | 70 | 70 | 70 | 70 | 70 | 70 | 69 | 69 | 68 | 68 | 69 | 70 | 71 | 71 | 72 | 73 | 73 | 73 | 73 | 73 |
| Heat Index (°F) | 101 | 98 | 94 | 91 | 86 | 86 | 85 | 83 | 79 | 78 | 77 | 76 | 76 | 76 | 78 | 85 | 88 | 90 | 95 | 98 | 101 | 102 | 105 | 103 |
| Surface Wind (mph) | 17 | 16 | 16 | 17 | 18 | 18 | 20 | 20 | 21 | 21 | 21 | 21 | 20 | 20 | 20 | 21 | 21 | 21 | 22 | 22 | 22 | 23 | 23 | 22 |
| Wind Dir | S | S | S | S | S | S | SSW | SSW | SSW | SSW | SSW | SSW | SSW | SSW | SSW | SSW | SSW | SSW | SSW | SSW | SSW | SSW | SSW | SSW |
| Gust | 29 | 25 | 26 | 28 | 30 | 30 | 31 | 32 | 33 | 33 | 33 | 32 | 32 | 32 | 32 | 33 | 33 | 33 | 33 | 32 | 33 | 34 | 33 | 32 |
| Sky Cover (%) | 10 | 6 | 6 | 6 | 6 | 5 | 4 | 5 | 10 | 17 | 23 | 21 | 18 | 16 | 15 | 13 | 12 | 8 | 5 | 1 | 1 | 1 | 1 | 2 |
| Precipitation Potential (%) | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 2 | 2 | 2 | 2 | 2 | 2 | 0 | 0 | 0 | 0 | 0 |
| Relative Humidity (%) | 62 | 61 | 63 | 65 | 67 | 67 | 69 | 72 | 74 | 76 | 76 | 79 | 76 | 76 | 74 | 69 | 67 | 63 | 59 | 58 | 54 | 52 | 49 | 51 |
| Rain | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
| Thunder | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
