Temperature
Cool by day, freezing at night.
American Fork is usually most comfortable in June and September. Typical daytime highs range from 38–94°F across the year. Most months see little rain.

Cool by day, freezing at night.
Some snow or mixed precipitation is possible this month.
Plenty of sun this month.
Humidity is rarely noticeable in the cool air.
In November, afternoons feel about 41° and nights feel near 26°.
Partly cloudy skies this month.
Calm winds are typical in November.
November late afternoons are around 47°F, easing to about 40°F in early evening.
| Month | High°F | Low°F | Rainin | Wet days | Sunh | Humidity% |
|---|---|---|---|---|---|---|
| Jan | 38 | 23 | 2.8 | 11 | 7.5 | 78 |
| Feb | 42 | 26 | 2.3 | 11 | 8.6 | 74 |
| Mar | 51 | 33 | 2.6 | 11 | 10.2 | 68 |
| Apr | 59 | 38 | 2.8 | 11 | 11.6 | 66 |
| May | 70 | 46 | 2.3 | 11 | 12.7 | 60 |
| Jun | 85 | 56 | 1.2 | 6 | 14.1 | 46 |
| Jul | 94 | 65 | 0.8 | 5 | 14.1 | 40 |
| Aug | 91 | 64 | 1.1 | 6 | 12.8 | 43 |
| Sep | 81 | 55 | 1.7 | 6 | 11.6 | 50 |
| Oct | 66 | 43 | 2.1 | 9 | 9.8 | 61 |
| Nov | 50 | 31 | 2.0 | 8 | 8.2 | 71 |
| Dec | 38 | 23 | 2.6 | 11 | 7.2 | 78 |
Similar climates
Want a side-by-side climate view? Compare American Fork with Algona.
Typical monthly values are based on long-term climate records. Useful for planning, not a forecast. Check the weather before you travel.
Sunshine: source type is not yet identified at metric level.
Local microclimates can vary by beach, neighborhood, trail, or elevation.
Last updated: Jul 31, 2026
Data & methodology