Custer, MT Weather

Custer, MT climate is warm during summer when temperatures tend to be in the 70's and very cold during winter when temperatures tend to be in the 20's.

The warmest month of the year is July with an average maximum temperature of 86.30 degrees Fahrenheit, while the coldest month of the year is January with an average minimum temperature of 9.50 degrees Fahrenheit.

Temperature variations between night and day tend to be relatively big during summer with a difference that can reach 30 degrees Fahrenheit, and moderate during winter with an average difference of 23 degrees Fahrenheit.

The annual average precipitation at Custer is 13.48 Inches. Rainfall in is fairly evenly distributed throughout the year. The wettest month of the year is May with an average rainfall of 2.52 Inches.

Weather Data

Current Conditions

(Updated: 9:53 AM MST MON NOV 23 2009)

Partly Cloudy, 36°F	Humidity: 55%	Dewpoint: 21°F
	Wind Speed: W 5.8 MPH (5 KT)	Heat Index: 36°F
	Barometer: 30.13 in.	Wind Chill: 31°F

Weather Forecast

(Generated: 9:06 AM MST MON NOV 23 2009)

	Hi: 41°F	Rest of today: Partly cloudy. Highs in the lower 40s. West winds 15 to 25 mph.
	Lo: 25°F
	Hi: 49°F	Tuesday: Sunny. Highs in the upper 40s. Southwest winds 15 to 25 mph.
	Lo: 30°F
	Hi: 51°F	Wednesday: Partly cloudy. Highs in the lower 50s. Southwest winds 5 to 10 mph.
	Lo: 31°F
	Hi: 55°F	Thanksgiving day: Sunny. Highs in the mid 50s.
	Lo: 31°F
	Hi: 55°F	Friday: Partly cloudy. Highs in the mid 50s.
	Lo: 31°F
	Hi: 45°F	Saturday: Mostly cloudy with a 20 percent chance of rain showers. Cooler. Highs in the mid 40s.
	Lo: 25°F

Moon, Sunrise and Sunset

	Moon Phase: First Quarter Moon	Civil Twilight: 6:48 AM MST	Sunrise: 7:21 AM MST
		Sunset: 4:31 PM MST	Civil Twilight: 5:04 PM MST

Normal Climate

Normal Temperatures

(HYSHAM Weather station, 19.51 miles from Custer)

Month	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec	Annual
Max °F	31.9	39.4	49.8	60.8	70.1	79.4	86.3	85.5	74.4	62.0	43.9	34.2	59.8
Mean °F	20.7	27.2	36.7	46.9	56.4	65.6	71.3	70.3	59.6	48.2	33.1	23.6	46.6
Min °F	9.5	14.9	23.6	32.9	42.7	51.7	56.3	55.1	44.7	34.4	22.3	12.9	33.4

Normal Precipitation