Arco, ID Weather Forecast

Local 7-day forecast

37°

Mostly Sunny then Slight Chance Light Snow

Track current conditions, temperature changes, wind, and the full daily outlook for Arco, ID in one place.

Friday, April 17, 2026

Wind: 8 to 13 mph NW

Friday

A slight chance of snow after noon. Mostly sunny, with a high near 37. Chance of precipitation is 20%.

Local 7-day forecast

Local Weather Overview

This forecast page for Arco, ID is designed for quick trip planning, giving you a clean read on daytime highs, overnight lows, and changing conditions across the upcoming forecast window. Latest sync: Apr 14, 2026 7:52 AM MDT.

The active forecast window currently covers Apr 17 to Apr 20, 2026 for Arco, ID.

Page Snapshot

Page focus: city weather
Forecast window: Apr 17 to Apr 20, 2026
Latest sync: Apr 14, 2026 7:52 AM MDT
Forecast office: PIH
Source: NOAA / NWS

Next High

37°F

Friday

Next Low

23°F

Friday Night

Rain Outlook

Periods mentioning precipitation

Windiest

8 to 21 mph

Monday

Daily Outlook

Today

Apr 17

Mostly Sunny then Slight Chance Light Snow

37 °F

/ 23°F

Wind 8 to 13 mph

Sat

Apr 18

Sunny

44 °F

/ 29°F

Wind 5 to 12 mph

Sun

Apr 19

Mostly Sunny

54 °F

/ 36°F

Wind 5 to 14 mph

Mon

Apr 20

Chance Rain And Snow

56 °F

Wind 8 to 21 mph

This Week in Arco

Monday looks like the warmest upcoming period in Arco at 56 degrees F.

Friday Night is the coolest period ahead with temperatures near 23 degrees F.

The strongest winds are forecast for Monday at about 8 to 21 mph S.

Precipitation is mentioned in 2 upcoming forecast periods.

Forecast Details

Last updated: Apr 14, 2026 7:52 AM MDT
Coverage: 4 days
Time zone: America/Boise
Forecast office: PIH
Radar station: KSFX

Weather data is provided by the National Weather Service and refreshed automatically for U.S. locations.

Open NOAA source

Extended Forecast

Friday Night

Apr 17

23°F

Partly Cloudy

6 to 14 mph WNW

Partly cloudy, with a low around 23.

Saturday

Apr 18

44°F

Sunny

5 to 12 mph W

Sunny, with a high near 44.

Saturday Night

Apr 18

29°F

Partly Cloudy

5 to 13 mph W

Partly cloudy, with a low around 29.

Sunday

Apr 19

54°F

Mostly Sunny

5 to 14 mph E

Mostly sunny, with a high near 54.

Sunday Night

Apr 19

36°F

Mostly Cloudy

7 to 13 mph SSW

Mostly cloudy, with a low around 36.

Monday

Apr 20

56°F

Chance Rain And Snow

8 to 21 mph S

A chance of rain and snow. Mostly sunny, with a high near 56. Chance of precipitation is 30%.

Detailed Forecast

Period	Conditions	Temp	Wind	Details
Friday Apr 17	Mostly Sunny then Slight Chance Light Snow	37°F	8 to 13 mph NW	A slight chance of snow after noon. Mostly sunny, with a high near 37. Chance of precipitation is 20%.
Friday Night Apr 17	Partly Cloudy	23°F	6 to 14 mph WNW	Partly cloudy, with a low around 23.
Saturday Apr 18	Sunny	44°F	5 to 12 mph W	Sunny, with a high near 44.
Saturday Night Apr 18	Partly Cloudy	29°F	5 to 13 mph W	Partly cloudy, with a low around 29.
Sunday Apr 19	Mostly Sunny	54°F	5 to 14 mph E	Mostly sunny, with a high near 54.
Sunday Night Apr 19	Mostly Cloudy	36°F	7 to 13 mph SSW	Mostly cloudy, with a low around 36.
Monday Apr 20	Chance Rain And Snow	56°F	8 to 21 mph S	A chance of rain and snow. Mostly sunny, with a high near 56. Chance of precipitation is 30%.

Nearby Forecasts

Explore weather pages for nearby cities and major places around Arco.

Nearby forecast pages are not available for this location yet.

Region Links

Butte County weather

County forecast page

Idaho weather

Statewide weather overview

United States weather

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Arco Idaho image

Weather data provided by the National Weather Service (NOAA). Forecast pages update automatically as new periods are synced for each supported U.S. location.