See exactly when rain will start and stop with a minute-by-minute precipitation nowcast for the next hour.
17°
Clear
Feels Like: 17°
Min: 7°
Max: 18°
The next few hours will be clear, with today reaching 18°C and dropping to 4°C. The coming days will be drizzle
Compare today's weather with yesterday's data and track temperature trends over time.
Hourly Forecast
Daylight Hours
07:13
Sunrise
19:32
Sunset
Moon
Waxing Crescent
11:11
Moonrise
20:33
Moonset
Daily Forecast
Monday
Today
Wednesday
Thursday
Friday
Saturday
Sunday
Monday
Tuesday
Wednesday
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Weather in Idaho Falls tomorrow, September 15, 2026
Expect a mostly clear day in Idaho Falls on September 15, 2026, with sunshine dominating from morning through evening. Cloud should stay limited, so the overall feel remains bright and settled. Expect a brighter morning, with limited cloud around 18% by 11:00. Conditions start on a settled note.
Temperatures climb from an overnight low near 3°C toward a daytime high of about 24°C. The air stays humid, with relative humidity between 21% and 67% and the peak around 07:00. Winds stay light, near 2.6 km/h by 16:00, so the day feels still more than breezy.
Later hours favour clearer intervals, as cloud stays near 53% around 14:00. The afternoon is the better half for outdoor time. Expect visibility around 16.1 km. The sun rises at 07:14 and sets at 19:31, for a total of 12 hours 16 minutes of sunlight today.
The practical takeaway for Idaho Falls is a bright September 15, 2026, ideal for outdoor errands before temperatures ease from about 24°C.
Frequently asked questions about weather in Idaho Falls
How warm does it get in Idaho Falls?
The warmest month in Idaho Falls is July, with average high temperatures of 32°C. The average temperature during this period is around 23°C.
How cold does it get in Idaho Falls?
The coldest month in Idaho Falls is January, with average low temperatures of -8°C. The average temperature during this period is around -5°C.
What is the wettest time of year in Idaho Falls?
The wettest month in Idaho Falls is May, with an average of 53mm of precipitation.
What is the driest time of year in Idaho Falls?
The driest month in Idaho Falls is July, with an average of 9mm of precipitation.
