Two-week planning outlook

14-Day Weather Forecast for Idaho Falls, Idaho

Daily high and low temperatures, rain chances, wind, UV index, weekend conditions, and planning guidance for the next two weeks.

Expect daytime highs between 46°F and 73°F during the next 14 days. Rain chances peak at 100% on Friday, Oct 23, while Mon, Oct 26 · Thu, Oct 29 · Sun, Oct 25 currently look most favorable for outdoor plans.

Updated Oct 21, 11:20 AM -06:00

14 Days at a Glance

Complete two-week outlook

Warmest DayThu, Oct 22 · 73°FLight Rain

Coolest NightSun, Nov 1 · 30°FClear Sky

Highest Rain ChanceFri, Oct 23 · 100%Heavy Intensity Rain

Strongest WindSat, Oct 31 · 21.3 mphNo gust data

Weekend OutlookRain possible · Light Rain57°F / 37°F

Total Precipitation0.86 inEstimated across 14 days

Extended local outlook

14-Day Forecast

Detailed 48-hour forecast

Wednesday, Oct 21 · 70°F / 52°F

Light Rain

Rain chance 37%, WSW 9.1 mph, humidity 39%.

Morning: 53°F
Afternoon: 65°F
Evening: 65°F
Overnight: 57°F
Humidity: 39%
Pressure: 30.00 inHg
Dew point: 40°F
UV index: 3.7 moderate
Sunrise: 7:49 AM
Sunset: 6:35 PM

Temperature Trend

HighLow30°F – 73°F

10/2110/2210/2310/2410/2510/2610/2710/2810/2910/3010/3111/111/211/3

Rain Chances

37%10/21

75%10/22

100%10/23

95%10/24

0%10/25

0%10/26

35%10/27

23%10/28

0%10/29

82%10/30

73%10/31

0%11/1

0%11/2

0%11/3

UV Index

Daily peak

3.710/21

3.410/22

0.410/23

3.110/24

010/25

—10/26

—10/27

—10/28

—10/29

—10/30

—10/31

—11/1

—11/2

—11/3

Planning Ahead

Forecast-based guidance

Most Favorable Outdoor Days

Mon, Oct 26 · Thu, Oct 29 · Sun, Oct 25

Lower rain chances and manageable winds

Rainy Days

Fri, Oct 23 · Sat, Oct 24 · Fri, Oct 30

Peak chance 100%

Warmest Days

Thu, Oct 22 · Wed, Oct 21 · Tue, Oct 27

Highs up to 73°F

Coolest Nights

Sun, Nov 1 · Mon, Nov 2 · Tue, Nov 3

Lows near 30°F

Windiest Day

Saturday, Oct 31

21.3 mph · Gusts --

Weekend Weather

Two-week planning

This Weekend

Sat, Oct 2447°F / 38°FLight Rain · Rain 95%

Sun, Oct 2557°F / 37°FClear Sky · Rain 0%

Next Weekend

Sat, Oct 3146°F / 35°FRain And Snow · Rain 73%

Sun, Nov 148°F / 30°FClear Sky · Rain 0%

14-Day Weather Forecast for Idaho Falls, Idaho

Temperatures range from an overnight low near 30°F to a daytime high near 73°F. The strongest rain signal is 100% on Friday, Oct 23, with 3 notable wet days in the current outlook.

FAQ

14-day forecast questions for Idaho Falls

What is the 14-day weather forecast for Idaho Falls?

Will it rain in Idaho Falls during the next two weeks?

The strongest rain signal is 100% on Friday, Oct 23, with 3 notable wet days in the current outlook.

What is the hottest day in Idaho Falls during the next 14 days?

The warmest forecast day is Thursday, Oct 22, with a high near 73°F.

What is the coldest night in Idaho Falls?

The lowest forecast temperature is 30°F on Sunday, Nov 1.

What will the weather be this weekend in Idaho Falls?

This Weekend currently ranges from 37°F to 57°F, with rain chances peaking at 95%.