As of 06:30 MDT

Rupert, ID weather in September

45°

Rupert, Wednesday, 7 October, 06:30

Clear. Feels like 45°. High 83°, low 45°.

Pressure30.12 inHg

Wind0 mph N

Humidity87%

Visibility6.2 mi

Dew point41°

See detailed hourly forecast

In September, Rupert, ID averages a high of 76.9° and a low of 50.5°. About 0.8 inches of precipitation fall over the month (4 wet days). The record high is 103.8° (2022) and the record low 26.1° (1965). Normals are computed over the last 60 years.

Day	High	Low	Chance of precip.	Record high	Record low
1	83.7°	55°	12%	96.6° (2019)	41.5° (1965)
2	82.9°	55.6°	8%	96.4° (2007)	41.9° (2008)
3	83.1°	55.6°	12%	103.8° (2022)	41.5° (1964)
4	83.1°	54.7°	13%	97.7° (2022)	42.8° (1971)
5	82.4°	55.2°	10%	101.3° (2020)	43° (1965)
6	81.9°	54.7°	7%	102.4° (2022)	42.1° (2015)
7	81.9°	54.1°	8%	102° (2022)	41.7° (2010)
8	80.1°	54.3°	20%	96.8° (2021)	43.2° (1992)
9	80.2°	53.2°	13%	96.4° (2021)	39.9° (2001)
10	79.3°	52.9°	15%	91° (2024)	40.5° (2020)
11	77.5°	52.7°	18%	94.3° (1990)	40.1° (2010)
12	76.3°	51.6°	13%	93° (2022)	40.5° (1972)
13	77°	50.5°	12%	89.8° (2020)	40.3° (1967)
14	77.2°	50.9°	12%	94.3° (2000)	37.8° (1970)
15	77.2°	50.2°	13%	94.6° (2000)	35.2° (1970)
16	75.9°	50.2°	13%	91.4° (1995)	34.5° (1965)
17	75.2°	49.8°	18%	93.2° (2020)	32.7° (1965)
18	74.8°	49.5°	8%	91.2° (1962)	27.3° (1965)
19	73°	48.9°	13%	89.1° (2009)	26.1° (1965)
20	71.6°	47.8°	22%	86.7° (1962)	31.5° (1978)
21	71.1°	47.1°	20%	88.3° (1979)	34.5° (1983)
22	72.3°	46°	7%	89.1° (1966)	34.7° (1961)
23	73.4°	46.9°	10%	89.2° (2001)	34.5° (1961)
24	73.8°	47.1°	7%	90.5° (2001)	33.1° (2000)
25	74.1°	47.1°	10%	93° (2015)	31.5° (1984)
26	73.4°	47.5°	15%	88.2° (2010)	31.5° (1970)
27	73.8°	46.9°	12%	88.9° (2022)	34.5° (1961)
28	73.9°	46.8°	8%	93.7° (2024)	33.6° (1999)
29	73.4°	46.9°	13%	87.6° (1963)	32° (1985)
30	72.1°	46.4°	20%	88.9° (2011)	30.6° (1985)