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Glasgow September Weather

Averages and records for weather in Glasgow, Montana in the month of September.

Typical Glasgow September Weather 1991–2020
Average daily high	72.9 °F
Average daily low	45.5 °F
Average monthly precipitation	1.1 inches
Average monthly snow	none
Daily chance of precipitation	22.4%
Daily chance of snow	0%

Glasgow September Weather Records 1893–2024
Highest temperature	106 °F	September 7, 2022
Lowest temperature	14 °F	September 25, 1928
Highest daily low	68 °F	September 4, 1960
Lowest daily high	34 °F	September 25, 1934
Hottest average high temperature	81.6 °F	2022
Coldest average high temperature	57.9 °F	1965
Most daily precipitation	2.0 inches	September 9, 1938
Most monthly precipitation	4.7 inches	1938
Most daily snow	4.6 inches	September 23, 1926
Most monthly snow	4.6 inches	1926

Note: Daily averages are a moving average which includes 14 days before and after

Day	Average (°F)		Record (°F)
Day	High	Low	High	Low
September 1	79.8	51.4	103	32
September 2	79.5	51.1	102	32
September 3	79.0	50.8	102	29
September 4	78.5	50.4	100	29
September 5	77.9	50.0	99	31
September 6	77.3	49.5	100	28
September 7	76.7	49.0	106	26
September 8	76.2	48.5	95	27
September 9	75.7	48.2	96	27
September 10	75.2	47.7	92	23
September 11	74.8	47.3	95	26
September 12	74.4	47.0	97	26
September 13	73.9	46.5	93	21
September 14	73.5	46.1	96	27
September 15	73.1	45.7	91	25
September 16	72.7	45.3	98	19
September 17	72.2	44.9	95	22
September 18	71.5	44.5	99	22
September 19	70.9	44.0	96	24
September 20	70.3	43.5	100	20
September 21	69.7	43.0	98	15
September 22	69.2	42.6	93	26
September 23	68.8	42.2	95	19
September 24	68.3	41.7	93	20
September 25	67.7	41.3	93	14
September 26	67.2	40.8	93	19
September 27	66.7	40.5	96	15
September 28	66.1	40.0	90	20
September 29	65.6	39.6	89	20
September 30	65.0	39.1	92	15

Weather Station Details

Years	Station	Coordinates
1948–2024	Glasgow International Airport	location
1893–1947	Glasgow #2	location