Posted Wednesday, September 17, 2025, 3:06 PM
Today's Forecast: San Jacinto residents should be aware of a slight chance of showers and thunderstorms developing after 5pm. The day will be mostly cloudy with a high near 94 degrees. No significant wind is expected, keeping conditions comfortable for outdoor activities. Evening commuters should be prepared for potential precipitation with a 20% chance of rain.
The Week Ahead: Showers and thunderstorms are likely tonight and will continue into Thursday, with mostly cloudy skies and a low around 66 degrees tonight. The high on Thursday will be cooler, near 88 degrees. Rainfall amounts could range from a quarter to half an inch. The chance of precipitation decreases slightly on Friday, with a mix of sun and clouds and highs around 88. The weekend outlook is much clearer, with sunny skies anticipated for Saturday and Sunday and highs in the low 90s. Nighttime temperatures will remain mild, in the mid-60s. The pleasant weather is expected to continue into the early part of next week.
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Today:
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90°F 65°F |
Sunny. A slight chance of thunderstorms after 11am |
20% chance of precipitation |
Predicted Air Quality: moderate,
AQI:
54 (courtesy of the SCAQMD). |
Pollen level is rated "medium".
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Wednesday night / Thursday morning:
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66°F |
A chance of showers and thunderstorms, mainly after 11pm |
40% chance of precipitation |
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Thursday:
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86°F |
Showers likely with thunderstorm activity also possible |
70% chance of precipitation |
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Thursday night / Friday morning:
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64°F |
Chance of showers and thunderstorms decreasing overnight |
40% chance of precipitation |
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Friday:
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86°F |
Chance for showers and thunderstorms |
30% chance of precipitation |
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Friday night / Saturday morning:
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64°F |
Mostly clear |
0% chance of precipitation |
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Saturday:
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90°F |
Partly cloudy with a slight chance of thunderstorms after noon |
20% chance of precipitation |
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Saturday night / Sunday morning:
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65°F |
Mostly clear |
0% chance of precipitation |
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Sunday:
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92°F |
Mostly sunny |
0% chance of precipitation |
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Sunday night / Monday morning:
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67°F |
Mostly clear |
0% chance of precipitation |
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Monday:
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95°F |
Sunny and hot |
0% chance of precipitation |
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Monday night / Tuesday morning:
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69°F |
Mostly clear |
0% chance of precipitation |
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Tuesday:
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94°F |
Sunny |
0% chance of precipitation |
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