Weather in Irwin, ID
Updated 2026-09-26 09:45 local time · ZIP codes 83428
Sunny
No government weather alerts were returned for this location at the latest update.
Next hours
54°1% rain60°1% rain
62°4% rain64°3% rain
66°6% rain
66°9% rain66°9% rain65°9% rain63°9% rain60°10% rain
58°10% rain58°10% rain3-day weather forecast
Weather details
Sunrise, sunset and moon
Key weather changes ahead
Weather insights for today
Rain chance stays relatively low over the next 12 hours (up to 10%).
It feels like 46°F with winds near 11 mph.
63°F, 9% rain chance and 11 mph wind.
Visibility is around 6 mi; gusts may reach 28 mph.
Current temperature is 54°F, wind 11 mph, rain chance up to 10%.
UV index is 1.
Local weather characteristics in Irwin
Idaho combines dry interior valleys with colder mountain climates. Elevation strongly affects temperature, snowfall and the timing of spring and fall conditions.
Irwin is part of the West weather region. The forecast point is near 43.41°N latitude and 111.29°W longitude. Local temperature, wind and precipitation can still differ from nearby places, especially where terrain, coastlines or urban development create small-scale weather changes.
Irwin weather today
Sunny and 54°F in Irwin, ID. Today's high is 66°F with a 5% rain chance. Winds are around 11 mph with gusts near 21 mph. Relative humidity is 38%, pressure is 30.01 inHg, and visibility is about 6 miles.
Tonight and tomorrow in Irwin
Sunrise is at 07:17 AM and sunset is at 07:15 PM. Tomorrow's forecast calls for Overcast with a high near 74°F and a low near 52°F. The maximum rain chance is 12%.