Lake St. Clair, MO weather

Today, hourly and 7-day forecast, sunrise and sunset, and the normal climate month by month

Weather in Lake St. Clair now

Loading the National Weather Service forecast…

Lake St. Clair weather by the hour

Lake St. Clair weather for the next 7 days

Source: National Weather Service (NOAA) · forecast for the coordinates of Lake St. Clair.

This week in Lake St. Clair

Sunrise, sunset and moon in Lake St. Clair

What is the weather usually like in Lake St. Clair?

Cfa
Humid subtropical climate
Köppen climate classification, calculated from the 1991–2020 normals

Average high and low temperature (°F)

17°37°56°76°95°42°22°Jan48°26°Feb58°35°Mar70°44°Apr78°54°May86°63°Jun90°67°Jul89°65°Aug81°56°Sep70°45°Oct57°34°Nov46°27°Dec

Average precipitation (inches)

2.7"Jan2.4"Feb3.9"Mar5.0"Apr4.9"May4.2"Jun4.7"Jul3.8"Aug3.6"Sep3.3"Oct3.7"Nov2.7"Dec

Best time to visit Lake St. Clair: April–May and September–October, with mild temperatures and fewer rainy days.

Source: NOAA NCEI U.S. Climate Normals 1991–2020, station UNION, MO US (USC00238515), adjusted for the elevation of Lake St. Clair.

Lake St. Clair weather month by month

January
42° 22°F
2.7 in of rain · 5 wet days❄ 4.7 in of snow
February
48° 26°F
2.4 in of rain · 5 wet days❄ 4.1 in of snow
March
58° 35°F
3.9 in of rain · 7 wet days❄ 1.8 in of snow
April
70° 44°F
5.0 in of rain · 8 wet days❄ 0.2 in of snow
May
78° 54°F
4.9 in of rain · 8 wet days
June
86° 63°F
4.2 in of rain · 7 wet days
July
90° 67°F
4.7 in of rain · 6 wet days
August
89° 65°F
3.8 in of rain · 5 wet days
September
81° 56°F
3.6 in of rain · 5 wet days
October
70° 45°F
3.3 in of rain · 5 wet days
November
57° 34°F
3.7 in of rain · 6 wet days❄ 0.7 in of snow
December
46° 27°F
2.7 in of rain · 5 wet days❄ 2.9 in of snow

Sunrise and sunset in Lake St. Clair through the year

MonthSunriseSunsetDaylight
January7:17 AM5:09 PM9 h 51 min
February6:52 AM5:43 PM10 h 51 min
March7:13 AM7:12 PM11 h 59 min
April6:26 AM7:41 PM13 h 15 min
May5:51 AM8:09 PM14 h 18 min
June5:38 AM8:30 PM14 h 52 min
July5:51 AM8:28 PM14 h 37 min
August6:17 AM7:59 PM13 h 41 min
September6:44 AM7:13 PM12 h 29 min
October7:11 AM6:27 PM11 h 15 min
November6:44 AM4:52 PM10 h 8 min
December7:12 AM4:46 PM9 h 33 min

Times for the 15th of each month, local time (America/Chicago).

What is the weather like in Lake St. Clair?

Lake St. Clair has a humid subtropical climate. The warmest month is July, with an average high of 90°F (32°C), and the coldest is January, with average lows of 22°F (-5°C).

It gets about 45.0 inches (1,142 mm) of precipitation a year. The wettest month is April and the driest is February. Snow is common: about 14 inches fall in an average year.

The best time to visit Lake St. Clair is April–May and September–October. At 705 ft of elevation, nights are mild most of the year. The live forecast on this page comes from the National Weather Service and the climate averages from NOAA’s 1991–2020 U.S. Climate Normals.

More about Lake St. Clair

Weather in towns near Lake St. Clair

Questions about the weather in Lake St. Clair

What is the hottest month in Lake St. Clair?

July, with an average high of 90°F (32°C).

What is the coldest month in Lake St. Clair?

January, with an average low of 22°F (-5°C).

How much does it rain in Lake St. Clair?

About 45.0 inches (1,142 mm) a year; the wettest month is April.

Does it snow in Lake St. Clair?

Yes, about 14 inches of snow fall in an average year.

When is the best time to visit Lake St. Clair?

April–May and September–October, when temperatures are most pleasant and rainy days are fewer.

What climate does Lake St. Clair have?

Humid subtropical (Köppen Cfa).

What is the weather like in Lake St. Clair in November?

Highs average 57°F and lows 34°F, with about 3.7 inches of precipitation.

What time is sunrise in Lake St. Clair?

Around 6:44 AM in mid-November, and sunset around 4:52 PM. Today’s exact times are shown above.

Where does this Lake St. Clair weather forecast come from?

From the National Weather Service (NOAA), the official U.S. weather agency, for the exact coordinates of Lake St. Clair.

All about Lake St. Clair ›

Last updated: