Irwin, ID Weather Forecast
Local 7-day forecast
Chance Light Snow
Track current conditions, temperature changes, wind, and the full daily outlook for Irwin, ID in one place.
A chance of snow. Partly sunny, with a high near 37. Chance of precipitation is 50%. New snow accumulation of less than half an inch possible.
Local Weather Overview
This forecast page for Irwin, 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 8:15 AM MDT.
The active forecast window currently covers Apr 17 to Apr 20, 2026 for Irwin, ID.
Page Snapshot
- Page focus
- city weather
- Forecast window
- Apr 17 to Apr 20, 2026
- Latest sync
- Apr 14, 2026 8:15 AM MDT
- Forecast office
- PIH
- Source
- NOAA / NWS
Daily Outlook
This Week in Irwin
Monday looks like the warmest upcoming period in Irwin at 59 degrees F.
Friday Night is the coolest period ahead with temperatures near 21 degrees F.
The strongest winds are forecast for Monday at about 16 to 25 mph S.
Precipitation is mentioned in 3 upcoming forecast periods.
Forecast Details
- Last updated
- Apr 14, 2026 8:15 AM MDT
- Coverage
- 5 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 sourceExtended Forecast
Partly cloudy, with a low around 21.
Sunny, with a high near 46.
Partly cloudy, with a low around 26.
Mostly sunny, with a high near 56.
Partly cloudy, with a low around 35.
A slight chance of rain and snow after noon. Mostly sunny, with a high near 59. Chance of precipitation is 20%.
A chance of rain and snow. Mostly cloudy, with a low around 34. Chance of precipitation is 30%.
Detailed Forecast
| Period | Conditions | Temp | Wind |
|---|---|---|---|
|
Friday
Apr 17
|
Chance Light Snow
|
37°F |
10 to 21 mph
NW
|
|
Friday Night
Apr 17
|
Partly Cloudy
|
21°F |
8 to 18 mph
SW
|
|
Saturday
Apr 18
|
Sunny
|
46°F |
8 to 15 mph
S
|
|
Saturday Night
Apr 18
|
Partly Cloudy
|
26°F |
13 mph
SSE
|
|
Sunday
Apr 19
|
Mostly Sunny
|
56°F |
13 to 20 mph
SSE
|
|
Sunday Night
Apr 19
|
Partly Cloudy
|
35°F |
17 mph
SSE
|
|
Monday
Apr 20
|
Mostly Sunny then Slight Chance Rain And Snow
|
59°F |
16 to 25 mph
S
|
|
Monday Night
Apr 20
|
Chance Rain And Snow
|
34°F |
15 to 23 mph
S
|
Nearby Forecasts
Explore weather pages for nearby cities and major places around Irwin.