Weather in September 2025

Twin Falls weather in September 2025

°C °F

The average weather in Twin Falls in September

The temperatures in Twin Falls in September are comfortable with low of 12°C and and high up to 26°C.

The wather in Twin Falls in September can vary between cold and nice weather days. Expect a few rainy days but usually not more than 3.

Our weather forecast can give you a great sense of what weather to expect in Twin Falls in September 2025.

If you’re planning to visit Twin Falls in the near future, we highly recommend that you review the 14 day weather forecast for Twin Falls before you arrive.

Temperatures
26° / 12°
Rainy Days
1
Snowy Days
0
Dry Days
29
Rainfall
14
mm
Sun Hours
10.4
Hrs

Explore the weather in Twin Falls in other months

Twin Falls annual weather

Month Temperatures Rainy Days Dry Days Snowy Days Rainfall Weather More details
January 2° / -5° 5 14 11 34 mm
Awful
February 4° / -3° 5 13 10 36 mm
Awful
March 10° / 1° 5 20 7 35 mm
Bad
April 14° / 3° 4 23 3 27 mm
Ok
May 19° / 7° 4 26 1 30 mm
Good
June 26° / 12° 2 28 0 18 mm
Perfect
July 33° / 17° 1 31 0 9 mm
Good
August 31° / 16° 1 30 0 12 mm
Good
September 26° / 12° 1 29 0 14 mm
Perfect
October 16° / 6° 1 28 1 21 mm
Good
November 9° / 0° 3 21 6 22 mm
Bad
December 2° / -5° 5 14 12 38 mm
Awful

Weather in Twin Falls in September - FAQ

What is the average temperature in Twin Falls in September?
The average temperature in Twin Falls in September is 12/26° C.
What is the chance of rain in Twin Falls in September?
On average, there are 1 rainy days in Twin Falls during September.
Weather wise, is September a good time to visit Twin Falls?
The weather in Twin Falls in September is perfect.
Can it snow in Twin Falls in September?
On average, there are 0 snowy days in Twin Falls in September.
More about the weather in Twin Falls