Lake Arrowhead Weather Forecast
- 74
- 86
Chance Thunderstorms
- 74
- 93
Slight Chance Thunderstorms
- 74
- 94
Slight Chance Thunderstorms
- 74
- 94
Slight Chance Thunderstorms
- 74
- 96
Mostly Sunny
- 74
- 97
Hot
Today 18 Jul Clinton
Partly sunny with a slight chance of Showers and Thunderstorms. Warmer with Highs in the mid 80s. Southeast Winds 5 to 10 Mph. Chance of rain 20 percent.
Tonight 18 Jul Clinton
Partly sunny Early, then becoming partly cloudy. A slight chance of Showers and Thunderstorms. Lows in the mid 70s. South Winds 5 to 10 Mph. Chance of rain 20 percent.
Lake Arrowhead Temperature Statistics
July Temperature
Mosby Midwest National Air Center Airport (9.9 miles)
Lowest 2 July, 2025
60.8 °FAverage July
78.7 °FHighest 10 July, 2025
91.4 °F
Climate (2020–Present)
Mosby Midwest National Air Center Airport (9.9 miles)
Average Low 2020–2025
45 °FAverage 2020–2025
55.8 °FAverage High 2020–2025
66 °F