| Point Forecast: Johnston RI 41.81N 71.44W (Elev. 17 m) |
Last Update: 3:00 am EDT Jun 21, 2024 |
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| Date | 06/21 | 06/22 | ||||||||||||||||||||||
| Hour (EDT) | 06 | 07 | 08 | 09 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 00 | 01 | 02 | 03 | 04 | 05 |
| Temperature (°C) | 22 | 23 | 26 | 27 | 28 | 29 | 29 | 29 | 28 | 27 | 26 | 26 | 25 | 24 | 23 | 23 | 22 | 22 | 21 | 21 | 21 | 21 | 20 | 20 |
| Dewpoint (°C) | 20 | 21 | 21 | 21 | 21 | 21 | 21 | 22 | 22 | 22 | 21 | 21 | 21 | 21 | 21 | 21 | 21 | 21 | 20 | 20 | 19 | 19 | 19 | 19 |
| Heat Index (°C) | 26 | 28 | 31 | 32 | 32 | 32 | 30 | 28 | 26 | 26 | 25 | 24 | ||||||||||||
| Surface Wind (mph) | 2 | 2 | 1 | 2 | 2 | 2 | 3 | 5 | 5 | 7 | 7 | 7 | 6 | 5 | 5 | 3 | 2 | 2 | 2 | 3 | 3 | 3 | 2 | 2 |
| Wind Dir | W | NW | NW | N | N | NE | NE | E | SE | SE | SE | E | E | SE | SE | SE | SE | SE | SE | S | S | S | S | S |
| Gust | ||||||||||||||||||||||||
| Sky Cover (%) | 56 | 52 | 70 | 68 | 63 | 69 | 66 | 76 | 82 | 89 | 90 | 92 | 91 | 91 | 91 | 90 | 91 | 90 | 82 | 82 | 87 | 87 | 87 | 88 |
| Precipitation Potential (%) | 14 | 16 | 18 | 28 | 37 | 47 | 54 | 61 | 68 | 68 | 67 | 67 | 56 | 44 | 32 | 28 | 23 | 18 | 25 | 31 | 37 | 32 | 28 | 23 |
| Relative Humidity (%) | 87 | 84 | 74 | 69 | 65 | 61 | 61 | 65 | 69 | 74 | 74 | 76 | 79 | 82 | 87 | 90 | 90 | 93 | 97 | 97 | 93 | 93 | 97 | 97 |
| Rain | -- | SChc | SChc | Chc | Chc | Chc | Chc | Lkly | Lkly | Lkly | Lkly | Lkly | Lkly | Chc | Chc | Chc | SChc | SChc | Chc | Chc | Chc | Chc | Chc | SChc |
| Thunder | -- | -- | -- | -- | -- | -- | SChc | Chc | Chc | Chc | Chc | Chc | Chc | SChc | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
| Date | 06/23 | |||||||||||||||||||||||
| Hour (EDT) | 06 | 07 | 08 | 09 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 00 | 01 | 02 | 03 | 04 | 05 |
| Temperature (°C) | 19 | 21 | 22 | 23 | 24 | 26 | 27 | 27 | 28 | 28 | 28 | 28 | 27 | 26 | 24 | 23 | 22 | 22 | 21 | 21 | 21 | 21 | 21 | 21 |
| Dewpoint (°C) | 19 | 19 | 20 | 20 | 21 | 21 | 21 | 21 | 22 | 22 | 22 | 22 | 22 | 21 | 21 | 21 | 21 | 21 | 21 | 21 | 21 | 21 | 21 | 21 |
| Heat Index (°C) | 24 | 26 | 28 | 29 | 30 | 31 | 31 | 30 | 28 | 26 | 24 | |||||||||||||
| Surface Wind (mph) | 2 | 2 | 3 | 3 | 5 | 5 | 6 | 6 | 6 | 7 | 7 | 7 | 7 | 6 | 6 | 6 | 6 | 6 | 6 | 6 | 6 | 6 | 7 | 7 |
| Wind Dir | SW | SW | SW | S | S | S | S | S | S | S | S | S | S | S | S | S | S | S | S | S | S | S | SW | SW |
| Gust | ||||||||||||||||||||||||
| Sky Cover (%) | 87 | 87 | 87 | 85 | 84 | 83 | 82 | 81 | 80 | 78 | 77 | 76 | 78 | 79 | 78 | 77 | 74 | 70 | 69 | 68 | 67 | 70 | 74 | 77 |
| Precipitation Potential (%) | 22 | 21 | 21 | 19 | 18 | 17 | 21 | 26 | 31 | 39 | 47 | 55 | 52 | 48 | 44 | 43 | 41 | 40 | 36 | 33 | 29 | 26 | 23 | 19 |
| Relative Humidity (%) | 100 | 93 | 90 | 82 | 79 | 76 | 72 | 69 | 69 | 67 | 67 | 69 | 74 | 76 | 83 | 89 | 94 | 97 | 99 | 96 | 97 | 98 | 100 | 100 |
| Rain | SChc | SChc | SChc | SChc | SChc | SChc | SChc | Chc | Chc | Chc | Chc | Lkly | Chc | Chc | Chc | Chc | Chc | Chc | Chc | Chc | Chc | Chc | SChc | SChc |
| Thunder | -- | -- | -- | -- | -- | -- | -- | -- | SChc | SChc | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | SChc | SChc | SChc |
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