| Point Forecast: Fountain Hills AZ 33.6N 111.74W (Elev. 1814 ft) |
Last Update: 3:56 pm MST May 16, 2026 |
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| Date | 05/16 | 05/17 | ||||||||||||||||||||||
| Hour (MST) | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 00 | 01 | 02 | 03 | 04 | 05 | 06 | 07 | 08 | 09 | 10 | 11 | 12 | 13 | 14 | 15 | 16 |
| Temperature (°F) | 94 | 93 | 90 | 86 | 83 | 80 | 78 | 75 | 73 | 70 | 68 | 67 | 67 | 66 | 70 | 75 | 79 | 82 | 84 | 86 | 88 | 89 | 90 | 90 |
| Dewpoint (°F) | 31 | 32 | 33 | 33 | 34 | 35 | 36 | 37 | 37 | 38 | 38 | 39 | 39 | 40 | 42 | 42 | 40 | 39 | 38 | 36 | 35 | 34 | 33 | 33 |
| Heat Index (°F) | 89 | 88 | 86 | 83 | 80 | 79 | 78 | 75 | 75 | 79 | 80 | 81 | 83 | 84 | 85 | 86 | 86 | |||||||
| Surface Wind (mph) | 13 | 15 | 15 | 13 | 11 | 10 | 8 | 7 | 6 | 2 | 3 | 3 | 3 | 3 | 3 | 5 | 8 | 9 | 10 | 10 | 10 | 10 | 11 | 13 |
| Wind Dir | WSW | WSW | WSW | WSW | SW | SW | WSW | WSW | WSW | ESE | ENE | ENE | ESE | E | SSE | S | S | S | S | SSW | SSW | SSW | SW | SW |
| Gust | 22 | 23 | 24 | 20 | 18 | 18 | 21 | 21 | 23 | 23 | ||||||||||||||
| Sky Cover (%) | 3 | 2 | 4 | 4 | 1 | 3 | 3 | 1 | 2 | 1 | 1 | 0 | 2 | 2 | 3 | 5 | 6 | 6 | 25 | 11 | 11 | 9 | 14 | 19 |
| Precipitation Potential (%) | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| Relative Humidity (%) | 11 | 12 | 13 | 15 | 17 | 20 | 22 | 25 | 27 | 31 | 33 | 36 | 36 | 38 | 36 | 31 | 25 | 22 | 19 | 17 | 15 | 14 | 13 | 13 |
| Rain | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
| Thunder | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
| Date | 05/18 | |||||||||||||||||||||||
| Hour (MST) | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 00 | 01 | 02 | 03 | 04 | 05 | 06 | 07 | 08 | 09 | 10 | 11 | 12 | 13 | 14 | 15 | 16 |
| Temperature (°F) | 91 | 89 | 87 | 82 | 79 | 77 | 75 | 72 | 70 | 68 | 65 | 64 | 64 | 63 | 65 | 69 | 72 | 75 | 77 | 80 | 82 | 83 | 85 | 85 |
| Dewpoint (°F) | 32 | 33 | 33 | 33 | 34 | 34 | 35 | 37 | 39 | 40 | 40 | 42 | 43 | 44 | 45 | 46 | 45 | 44 | 42 | 41 | 40 | 39 | 37 | 36 |
| Heat Index (°F) | 87 | 85 | 83 | 80 | 79 | 77 | 75 | 75 | 77 | 79 | 80 | 81 | 82 | 82 | ||||||||||
| Surface Wind (mph) | 13 | 14 | 16 | 15 | 14 | 13 | 11 | 9 | 7 | 6 | 6 | 5 | 3 | 5 | 6 | 7 | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 8 |
| Wind Dir | SW | SW | SW | SW | SSW | SSW | SSW | SSW | S | S | S | S | S | S | S | SSW | SSW | SSW | SSW | SSW | SW | SW | SW | WSW |
| Gust | 23 | 25 | 26 | 24 | 23 | 21 | 18 | |||||||||||||||||
| Sky Cover (%) | 7 | 3 | 21 | 16 | 11 | 4 | 7 | 5 | 10 | 15 | 19 | 30 | 35 | 77 | 44 | 11 | 9 | 7 | 5 | 4 | 2 | 1 | 1 | 2 |
| Precipitation Potential (%) | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| Relative Humidity (%) | 12 | 14 | 15 | 17 | 20 | 21 | 23 | 28 | 32 | 36 | 40 | 45 | 46 | 50 | 48 | 44 | 38 | 33 | 29 | 25 | 22 | 21 | 18 | 17 |
| Rain | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
| Thunder | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
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