Climate almanac
Lewistown
Montana, US · 47.06°, -109.43°
What is the climate like in Lewistown?
The best time to visit Lewistown is typically July – September, with trip comfort peaking in August (8.4/10). Lewistown is warmest in July, when daily highs average 83°F (28°C), and coolest in February, when lows fall to about 14°F (-10°C). The wettest month is typically June and the driest is November; the year sees roughly 24 in of precipitation.
- Best time to visitJuly – September — comfort peaks in August (8.4/10)
- Warmest monthJuly — average high 83°F (28°C)
- Coolest monthFebruary — average low 14°F (-10°C)
- Wettest monthJune (3.7 in)
- Driest monthNovember (1.2 in)
- Annual precipitation24 in