Weather WorldArrowhead Lake, ID Weather Forecast
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Arrowhead Lake Weather Forecast
| TODAY | TONIGHT | SATURDAY | SATURDAY NIGHT | SUNDAY | SUNDAY NIGHT | MONDAY | TUESDAY | WEDNESDAY | WEDNESDAY NIGHT | THURSDAY |
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| Mostly Sunny | Clouds | Patchy Fog | Mostly Cloudy | Mostly Cloudy | Mostly Cloudy | Mostly Clear | Mostly Clear | Mostly Clear | Increasing Clouds | Sunny |
| Hi: 72°FHi: 22°C | Lo: 37°FLo: 3°C | Hi: 62°FHi: 17°C | Lo: 44°FLo: 7°C | Hi: 66°FHi: 19°C | Lo: 42°FLo: 6°C | Hi: 67°FHi: 19°C Lo: 37°FLo: 3°C | Hi: 67°FHi: 19°C Lo: 37°FLo: 3°C | Hi: 67°FHi: 19°C Lo: 37°FLo: 3°C | Lo: 38°FLo: 3°C | Hi: 67°FHi: 19°C |
POP = Probability of Precipitation.
Weather Outlook Updated: 230 AM MDT Fri Sep 25 2026 
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Issued: 552 AM MDT Fri Sep 25 2026
Key Messages
- A strong cold front will bring gusty winds and cooler temperatures area-wide today, with isolated showers for the north.
- Temperatures will average 10 degrees below normal on Saturday.
- A weak low pressure system will support shower chances near the NV border and central Idaho Sunday.
- Seasonable temperatures returning next week.
Aviation
/12Z Friday through Saturday/... Issued 550 AM MDT FRI SEP 25 2026
VFR. Cold front will move from W to E today, bringing gusty winds area-wide. Isolated ...