Weather forecast for 10 days
Alton, ID

Weather forecast for the weekend

Saturday, Jun 21.

Sunny
5:46 am

9:06 pm
MDT
Sunny
70°F / 34°F
  • Wind: 17mph WNW
  • Humidity: 37%
  • Precip. probability: 0%
  • Precipitation: 0"
  • UV index: 9
On Saturday, June 21, a sun-drenched sky is anticipated.
A wide temperature range is expected, from a high of a pleasant 69.8°F to a low of an icy 33.8°F.
Saturday's top temperature is set to align with the common June high of 68.9°F.
Sunrise will be at 5:46 am and sunset at 9:06 pm; the daylight will last for 15h and 19min.

Sunday, Jun 22.

Sunny
5:47 am

9:06 pm
MDT
Sunny
63°F / 30°F
  • Wind: 13mph WNW
  • Humidity: 40%
  • Precip. probability: 1%
  • Precipitation: 0"
  • UV index: 9
On Sunday, June 22, sun-filled conditions are expected to persist.
Temperature measurements will peak at a breezy 62.6°F, with a considerable drop to a low of a harsh 30.2°F.
Sunday's top temperature will be relatively lower than June's standard maximum of 68.9°F.
Sunrise will be at 5:47 am and sunset at 9:06 pm; the daylight will last for 15h and 19min.

Frequently asked questions

What is the weather forecast for Alton for Saturday?
On Saturday, in Alton, sunshine will likely continue with scattered clouds at most.
What will be the maximum temperature on Saturday?
On Saturday, the highest temperature will be 69.8°F, while the lowest temperature will be 33.8°F.
What is the weather forecast for Alton for Sunday?
On Sunday, conditions will remain bright with clear skies.
What will be the maximum temperature on Sunday?
On Sunday, the highest temperature will be 62.6°F, while the lowest temperature will be 30.2°F.
What is the weather forecast for Alton for the next ten days?
In Alton, predominantly dry and sunny and occasionally gloomy weather is forecasted for the next ten days.
How hot will it be in the next ten days?
The maximum temperature will vary between 62.6°F and 89.6°F, as the minimum temperature will be between 30.2°F and 48.2°F.
What will be the hottest and the coldest days in Alton?
With the maximum temperature of 89.6°F, Thursday will be the hottest day. The coldest day will be Sunday, with a maximum of 62.6°F.

Long-term weather forecast

TueJun 17.
  • min.
  • 39°F
Clear
Clear
  • Wind: 8mph NNE
  • Humidity: 70%
  • UV index: 0
  • Precip. probability: 1%
  • Precipitation: 0"
  • 5:46 am 9:05 pm MDT
WedJun 18.
  • 81°F
  • 43°F
Sunny
Sunny
  • Wind: 9mph WNW
  • Humidity: 38%
  • UV index: 9
  • Precip. probability: 0%
  • Precipitation: 0"
  • 5:46 am 9:05 pm MDT
ThuJun 19.
  • 90°F
  • 48°F
Sunny
Sunny
  • Wind: 16mph SSW
  • Humidity: 31%
  • UV index: 9
  • Precip. probability: 0%
  • Precipitation: 0"
  • 5:46 am 9:05 pm MDT
FriJun 20.
  • 84°F
  • 41°F
Sunny
Sunny
  • Wind: 18mph SSW
  • Humidity: 26%
  • UV index: 9
  • Precip. probability: 0%
  • Precipitation: 0"
  • 5:46 am 9:06 pm MDT
SatJun 21.
  • 70°F
  • 34°F
Sunny
Sunny
  • Wind: 17mph WNW
  • Humidity: 37%
  • UV index: 9
  • Precip. probability: 0%
  • Precipitation: 0"
  • 5:46 am 9:06 pm MDT
SunJun 22.
  • 63°F
  • 30°F
Sunny
Sunny
  • Wind: 13mph WNW
  • Humidity: 40%
  • UV index: 9
  • Precip. probability: 1%
  • Precipitation: 0"
  • 5:47 am 9:06 pm MDT
MonJun 23.
  • 73°F
  • 39°F
Mostly Sunny
Mostly Sunny
  • Wind: 10mph W
  • Humidity: 37%
  • UV index: 9
  • Precip. probability: 1%
  • Precipitation: 0"
  • 5:47 am 9:06 pm MDT
TueJun 24.
  • 77°F
  • 43°F
Partly Cloudy
Partly Cloudy
  • Wind: 11mph WSW
  • Humidity: 35%
  • UV index: 9
  • Precip. probability: 3%
  • Precipitation: 0"
  • 5:47 am 9:06 pm MDT
WedJun 25.
  • 77°F
  • 43°F
Partly Cloudy
Partly Cloudy
  • Wind: 11mph WNW
  • Humidity: 36%
  • UV index: 9
  • Precip. probability: 11%
  • Precipitation: 0"
  • 5:48 am 9:06 pm MDT
ThuJun 26.
  • 82°F
  • 45°F
Mostly Sunny
Mostly Sunny
  • Wind: 12mph W
  • Humidity: 33%
  • UV index: 9
  • Precip. probability: 0%
  • Precipitation: 0"
  • 5:48 am 9:06 pm MDT
For the coming ten days, primarily mostly clear and occasionally overcast weather is anticipated.
Rain is not expected in Alton in the upcoming period.
Temperature variation will be noticeable throughout the forecast window. The maximum temperature will vary between 62.6°F and 89.6°F, while the variation in nighttime lows will be also notably wide, as nighttime lows are forecast to fall between 30.2°F and 48.2°F.
Expect the hottest day on Thursday, with temperatures peaking at 89.6°F; with the highest temperature of 62.6°F, Sunday will be the coldest day.
Updated: Jun 18, 2025 @ 02:03:46 UTC
Published by: Weather U.S. | About Us
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Weather Forecasting & Climate
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