Flathead Lake vs Payette Lake

Both lakes are sitting at about the same temperature right now. They are roughly 362 km apart in United States.

Flathead Lake

Montana

18.9°C

mild · modelled estimate

September average
18.9°C
Warmest month
August · 20.0°C
Coldest month
3.0°C
Swim season
July–September

The largest freshwater lake west of the Mississippi, cool and crystal clear.

Payette Lake

Idaho

18.9°C

mild · modelled estimate

September average
18.9°C
Warmest month
August · 20.0°C
Coldest month
3.0°C
Swim season
July–September

Payette Lake in Idaho, United States is swimmable in high summer, brisk either side of it, and drops close to single digits in winter.

Month by month

LakeJanFebMarAprMayJunJulAugSepOctNovDec
Flathead Lake4.1°C3.0°C4.1°C7.3°C11.5°C15.8°C18.9°C20.0°C18.9°C15.8°C11.5°C7.3°C
Payette Lake4.1°C3.0°C4.1°C7.3°C11.5°C15.8°C18.9°C20.0°C18.9°C15.8°C11.5°C7.3°C

Monthly values are modelled from each lake's long-term winter and summer envelope, then refined with today's forecast air temperature for the headline reading.

Related lake comparisons

Want a different mix? Compare up to four lakes side by side or browse all lake water temperatures.

Jump straight to a country, coastal region, city, seasonal ranking or comparison.