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Hart Memorial Unit, CA Weather Forecast
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Hart Memorial Unit Weather Forecast
| TODAY | TONIGHT | THURSDAY | THURSDAY NIGHT | FRIDAY | FRIDAY NIGHT | SATURDAY | SUNDAY | MONDAY | MONDAY NIGHT | TUESDAY |
 |  |  |  | |  | | | | | |
| Sunny | Mostly Clear | Mostly Cloudy | Mostly Cloudy | Mostly Sunny | Partly Cloudy | Clear | Clear | Mostly Clear | Mostly Clear | Mostly Sunny |
| Hi: 101°FHi: 38°C | Lo: 74°FLo: 23°C | Hi: 99°FHi: 37°C | Lo: 75°FLo: 24°C | Hi: 99°FHi: 37°C | Lo: 71°FLo: 22°C | Hi: 99°FHi: 37°C Lo: 68°FLo: 20°C | Hi: 99°FHi: 37°C Lo: 68°FLo: 20°C | Hi: 91°FHi: 33°C Lo: 62°FLo: 17°C | Hi: 91°FHi: 33°C Lo: 62°FLo: 17°C | Hi: 89°FHi: 32°C |
POP = Probability of Precipitation.
Weather Outlook Updated: 1141 AM PDT Wed Aug 26 2026 
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Issued: 1101 AM PDT Wed Aug 26 2026
Key Messages
1. Triple digit heat continues for the San Joaquin Valley this week. Moderate to Major Heat Risk expected with a Heat Advisory in effect through Wednesday evening, mainly Fresno County southward.
2. Extreme Heat Warning in effect for the Mojave Desert through Wednesday evening with Major Heat Risk expected. An 0 to 70 percent probability of temperatures of 105 degrees or hotter with little overnight relief.
3. Moisture tracking over the region in the late week period will bring a 10 to...