| Point Forecast: American Falls ID 42.77N 112.87W (Elev. 1313 m) |
Last Update: 12:31 pm MDT Sep 16, 2026 |
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| Date | 09/16 | 09/17 | ||||||||||||||||||||||
| Hour (MDT) | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 00 | 01 | 02 | 03 | 04 | 05 | 06 | 07 | 08 | 09 | 10 | 11 | 12 | 13 | 14 | 15 |
| Temperature (°C) | 26 | 26 | 26 | 25 | 23 | 21 | 19 | 18 | 17 | 17 | 17 | 16 | 16 | 15 | 15 | 15 | 14 | 16 | 18 | 19 | 21 | 22 | 23 | 24 |
| Dewpoint (°C) | 12 | 12 | 12 | 13 | 13 | 12 | 12 | 12 | 12 | 12 | 12 | 12 | 12 | 11 | 11 | 12 | 12 | 12 | 14 | 14 | 16 | 16 | 15 | 15 |
| Heat Index (°C) | 26 | 26 | 26 | 25 | 24 | |||||||||||||||||||
| Surface Wind (mph) | 10 | 10 | 9 | 8 | 7 | 7 | 8 | 8 | 8 | 8 | 8 | 9 | 10 | 10 | 10 | 10 | 9 | 9 | 10 | 11 | 13 | 15 | 15 | 15 |
| Wind Dir | S | S | SSE | SSE | SE | SE | ESE | ESE | ESE | E | SE | ESE | SE | SSE | SSE | SSE | SSE | S | S | S | S | S | S | S |
| Gust | ||||||||||||||||||||||||
| Sky Cover (%) | 68 | 72 | 61 | 51 | 50 | 47 | 36 | 22 | 32 | 47 | 59 | 67 | 69 | 69 | 76 | 83 | 92 | 89 | 66 | 57 | 58 | 43 | 28 | 19 |
| Precipitation Potential (%) | 2 | 2 | 1 | 1 | 1 | 2 | 2 | 3 | 12 | 12 | 11 | 10 | 7 | 8 | 17 | 22 | 39 | 45 | 41 | 36 | 37 | 21 | 16 | 13 |
| Relative Humidity (%) | 43 | 42 | 42 | 48 | 53 | 58 | 62 | 67 | 69 | 72 | 75 | 76 | 77 | 77 | 78 | 82 | 82 | 82 | 78 | 74 | 70 | 67 | 61 | 56 |
| Rain | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | SChc | SChc | Chc | Chc | Chc | Chc | Chc | SChc | SChc | -- |
| Thunder | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | SChc | SChc | SChc | -- |
| Date | 09/18 | |||||||||||||||||||||||
| Hour (MDT) | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 00 | 01 | 02 | 03 | 04 | 05 | 06 | 07 | 08 | 09 | 10 | 11 | 12 | 13 | 14 | 15 |
| Temperature (°C) | 24 | 24 | 25 | 23 | 22 | 19 | 18 | 17 | 16 | 16 | 15 | 14 | 13 | 13 | 13 | 12 | 12 | 13 | 14 | 16 | 18 | 19 | 19 | 20 |
| Dewpoint (°C) | 14 | 14 | 14 | 14 | 16 | 13 | 13 | 12 | 12 | 12 | 13 | 12 | 11 | 11 | 11 | 11 | 11 | 11 | 12 | 12 | 12 | 12 | 12 | 12 |
| Heat Index (°C) | 24 | 24 | 25 | |||||||||||||||||||||
| Surface Wind (mph) | 15 | 15 | 10 | 10 | 10 | 8 | 8 | 8 | 7 | 7 | 7 | 6 | 6 | 6 | 5 | 5 | 5 | 7 | 7 | 7 | 9 | 9 | 9 | 8 |
| Wind Dir | S | S | S | S | S | SSW | SSW | SSW | SSE | SSE | SSE | S | S | S | SSW | SSW | SSW | SW | SW | SW | WSW | WSW | WSW | W |
| Gust | ||||||||||||||||||||||||
| Sky Cover (%) | 23 | 19 | 53 | 53 | 53 | 61 | 61 | 61 | 53 | 53 | 53 | 53 | 53 | 53 | 50 | 50 | 50 | 50 | 50 | 50 | 63 | 63 | 63 | 63 |
| Precipitation Potential (%) | 12 | 10 | 25 | 18 | 30 | 34 | 42 | 22 | 30 | 30 | 30 | 30 | 30 | 30 | 25 | 25 | 25 | 25 | 25 | 25 | 44 | 44 | 44 | 44 |
| Relative Humidity (%) | 53 | 51 | 50 | 58 | 65 | 70 | 72 | 76 | 78 | 81 | 88 | 85 | 88 | 88 | 88 | 88 | 88 | 87 | 83 | 76 | 70 | 65 | 62 | 59 |
| Rain | -- | -- | Chc | SChc | Chc | Chc | Chc | SChc | Chc | Chc | Chc | Chc | Chc | Chc | Chc | Chc | Chc | Chc | Chc | Chc | Chc | Chc | Chc | Chc |
| Thunder | -- | -- | SChc | SChc | SChc | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | SChc | SChc | SChc | Chc |
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