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Arrowhead Lake Weather Forecast
| REST OF TODAY | TONIGHT | MONDAY | MONDAY NIGHT | TUESDAY | TUESDAY NIGHT | WEDNESDAY | WEDNESDAY NIGHT | THURSDAY | THURSDAY NIGHT | FRIDAY | FRIDAY NIGHT |
 |  | |  | | |  |  | | | | |
| Sunny | Mostly Clear | Mostly Sunny | Partly Cloudy | Mostly Sunny | Clearing | Chance of T-Storm | Chance of T-Storm | Chance of T-Storm | Chance of T-Storm | Chance of T-Storm | Chance of T-Storm |
| Hi: 91°FHi: 33°C | Lo: 69°FLo: 21°C | Hi: 91°FHi: 33°C | Lo: 69°FLo: 21°C | Hi: 91°FHi: 33°C | Lo: 70°FLo: 21°C | Hi: 91°FHi: 33°C | Lo: 71°FLo: 22°C | Hi: 91°FHi: 33°C | Lo: 70°FLo: 21°C | Hi: 91°FHi: 33°C | Lo: 71°FLo: 22°C |
| POP: 40% | POP: 40% | POP: 60% | POP: 60% | POP: 50% | POP: 50% |
POP = Probability of Precipitation.
Weather Outlook Updated: 1008 AM EDT Sun Aug 23 2026 
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Arrowhead Lake Forecast Discussion
Issued: 647 AM EDT Sun Aug 23 2026
Key Messages
- 1. Seasonal temperatures with afternoon thunderstorm chances each day this week.
Discussion
... KEY MESSAGE 1: Seasonal temperatures with afternoon thunderstorm chances each day into next week.
Calmer conditions are expected to settle in for Sunday as shower and thunderstorm activity shifts east toward the coastal plain. Meanwhile, drier air and some mid-level subsidence should help clear cloud cover from the Midlands and CSRA. NAEFS ensemble means suggest PWAT values falling toward the...