Lake Elmo, MN Weather & Growing Conditions

Local forecast, frost dates, hardiness zone and planting guidance for Lake Elmo, a city in Washington County, Minnesota.

Today

75°F

Partly Sunny

Partly sunny, with a high near 75. Northwest wind 5 to 10 mph.

7-day forecast for Lake Elmo

When	Temp	Forecast	Wind	Precip
Today	75°F	Partly Sunny	5 to 10 mph NW	4%
Tonight	57°F	Partly Cloudy	0 to 10 mph WNW	4%
Wednesday	77°F	Sunny	0 to 5 mph W	0%
Wednesday Night	59°F	Mostly Clear	5 mph SW	0%
Thursday	82°F	Sunny	5 to 15 mph SSW	0%
Thursday Night	63°F	Mostly Clear	10 to 15 mph SSW	3%
Friday	84°F	Sunny	5 to 15 mph SSW	9%
Friday Night	64°F	Chance Showers And Thunderstorms	5 to 10 mph SSW	29%
Saturday	84°F	Mostly Sunny	5 mph SSW	14%
Saturday Night	65°F	Chance Showers And Thunderstorms	5 to 10 mph N	49%
Sunday	82°F	Chance Showers And Thunderstorms	5 to 10 mph SSW	49%
Sunday Night	64°F	Slight Chance Showers And Thunderstorms	5 mph NNE	18%
Monday	81°F	Slight Chance Showers And Thunderstorms	5 mph NE	22%
Monday Night	63°F	Slight Chance Showers And Thunderstorms	5 mph NNE	23%

Forecast source: National Weather Service (api.weather.gov) for Lake Elmo (44.988, -92.910). Updated through the day.

Growing snapshot for Lake Elmo

Last spring frost

Apr 30

First fall frost

Oct 11

Growing season

163 days

Hardiness zone

More local growing data for Lake Elmo: nearby ZIP 55042 weather · frost dates · planting calendar · Minnesota frost dates

Nearby towns & communities

Afton Bayport Birchwood Village Cottage Grove Dellwood Grant Hugo Lake St. Croix Beach Lakeland Lakeland Shores Mahtomedi Marine on St. Croix Newport Oak Park Heights Oakdale Pine Springs Scandia St. Marys Point St. Paul Park Stillwater Willernie Woodbury

All Minnesota locations ›

Climate data from the nearest NOAA station, Stillwater 2Sw, Mn (4.4 mi from Lake Elmo). Frost dates are 1991–2020 averages, not a forecast. Page updated Aug 4, 2026.