Labor Day weekend often is regarded as a signal that fall is near, even though summer continues until later in the month.
And the first week of September can bring sizzling heat or sprinklings of snow.
Here's a look at some weather history for Sept. 2-8 from the National Weather Service:
Sept. 2: 1944 proved a soaker as Mystic Lake got 2 inches of rain and Red Lodge recorded 1.70 inches.
Sept. 3: Some Columbus residents evacuated their homes as the Eagle Mount fire started near Columbus in 2009. Smoke forced closure of Interstate 90, but fire crews contained the blaze the next day after about 1,000 acres burned.
In 1940, Miles City's low stayed quite high at 72 degrees. The low was the city's second-warmest for September; the record was set on Sept. 4, 1960 at 74 degrees.
Sept. 4: Billings' high reached 100 degrees in 1950, the record latest occurrence of 100 degrees for the city. And the heat was shared as Miles City sizzled at 105 and Columbus and Roundup had highs of 102.
Sept. 5: In 2010, a severe thunderstorm pelted the Big Timber area with quarter-size hail, while penny-size hail was reported 20 miles north of Laurel in 2002.
Sept. 6: In 2009, Billings' temperature climbed to 93 degrees for the fifth day in a row with a high exceeding 90 degrees. That was a record for September.
Lightning in 2002 ignited the Cow Creek fire near Columbus. In just four hours, the blaze built to 2,000 acres. It went on to blacken 5,500 acres by Sept. 8 and devoured two structures for a cost of $223,000.
Sept. 7: Billings received its record earliest measurable snowfall in 1962, as 2 inches fell. By the 8th, the city had 6.3 inches. Also on Sept. 7 and 8, 1962, Red Lodge had 15 inches of snow total, while Columbus got 4 inches and Livingston received 1 inch.
Sept. 7, 1941, marked the record wettest September day at Miles City, where 2.67 inches of rain fell. Red Lodge received an inch of snow and 1.08 inches of rain, while precipitation totals hit 1.62 inches in Columbus and 2.88 in Ballantine.
Sept. 8: 1979 set the record for latest date for a temperature of 99 to be recorded in Billings.