Current Conditions

Rosemont, California

79°F26°C
Drizzle

Wind

SW 8 mph12 km/h

Humidity

40%

Cloud Cover

66%

As of Wednesday, September 2, 2026 at 4:22 PM PDT

Today's Outlook

Day

Mostly cloudy and warm, with a high of 79°F26°C and morning low of 72°F22°C. Breezy from the SW at 7 to 8 mph11 to 13 km/h. 13% chance of drizzle in the afternoon.

Night

Partly cloudy, with a low around 67°F19°C. Breezy from the SW at 6 to 7 mph10 to 11 km/h.

7-Day Forecast

DayConditionHigh (°F)Low (°F)Precip (mm)Cloud Cover (%)Wind (mph)
DrizzleHigh 79°F26°CLow 67°F19°CPrecip 0.01 in0.2 mm13%Cloud 59%Wind SW 7 mph11 km/hWednesday: Mostly cloudy and warm, with a high of 79°F26°C and morning low of 72°F22°C. Breezy from the SW at 7 to 8 mph11 to 13 km/h. 13% chance of drizzle in the afternoon. Wednesday Night: Partly cloudy, with a low around 67°F19°C. Breezy from the SW at 6 to 7 mph10 to 11 km/h.
DrizzleHigh 77°F25°CLow 61°F16°CPrecip 0.02 in0.6 mm30%Cloud 60%Wind SW 6 mph10 km/hThursday: Mostly cloudy and warm, with a high of 77°F25°C and morning low of 64°F18°C. Breezy from the SW at 7 to 9 mph12 to 15 km/h. 12% chance of drizzle in the afternoon. Thursday Night: Mostly cloudy, with a low around 61°F16°C. Light wind from the SSW around 5 mph9 km/h. 30% chance of drizzle in the evening.
DrizzleHigh 78°F26°CLow 63°F17°CPrecip 0.03 in0.7 mm32%Cloud 46%Wind SSW 5 mph8 km/hFriday: Partly cloudy and warm, with a high of 78°F26°C and morning low of 64°F18°C. Light wind from the SSW around 5 mph8 km/h. 16% chance of drizzle in the morning. Dry air. Friday Night: Partly cloudy, with a low around 63°F17°C. Light wind from the SSW around 5 mph8 km/h. 32% chance of drizzle overnight.
ClearHigh 81°F27°CLow 58°F14°CPrecip 0 in0 mmCloud 22%Wind SW 4 mph7 km/hSaturday: Mostly clear and warm, with a high of 81°F27°C and morning low of 61°F16°C. Light wind from the SW around 4 mph7 km/h. Saturday Night: Partly cloudy, with a low around 58°F14°C. Light wind from the SSW around 4 mph7 km/h.
ClearHigh 81°F27°CLow 59°F15°CPrecip 0 in0 mmCloud 13%Wind SSW 6 mph10 km/hSunday: Mostly clear and warm, with a high of 81°F27°C and morning low of 61°F16°C. Breezy from the SSW at 7 to 8 mph11 to 13 km/h. Dry air. Sunday Night: Mostly clear, with a low around 59°F15°C. Breezy from the SSW at 5 to 7 mph8 to 11 km/h.
ClearHigh 85°F30°CLow 57°F14°CPrecip 0 in0 mmCloud 5%Wind NW 4 mph7 km/hMonday: Mostly clear and warm, with a high of 85°F30°C and morning low of 61°F16°C. Light wind from the NW around 5 mph8 km/h. Dry air. Monday Night: Mostly clear, with a low around 57°F14°C. Light wind from the NW around 4 mph6 km/h.
ClearHigh 88°F31°CLow 59°F15°CPrecip 0 in0 mmCloud 32%Wind W 4 mph6 km/hTuesday: Partly cloudy and hot, with a high of 88°F31°C and morning low of 62°F16°C. Light wind from the W around 3 mph5 km/h. Dry air. Tuesday Night: Partly cloudy, with a low around 59°F15°C. Light wind from the WSW around 4 mph6 km/h.

15-Day Forecast

Day High Low Precip Cloud Cover Condition Wind
WednesdaySep 279°F26°C67°F19°C0.01 in0.2 mm· 13%59%DrizzleSW 7 mph11 km/h
ThursdaySep 377°F25°C61°F16°C0.02 in0.6 mm· 30%60%DrizzleSW 6 mph10 km/h
FridaySep 478°F26°C63°F17°C0.03 in0.7 mm· 32%46%DrizzleSSW 5 mph8 km/h
SaturdaySep 581°F27°C58°F14°C0 in0 mm· —22%ClearSW 4 mph7 km/h
SundaySep 681°F27°C59°F15°C0 in0 mm· —13%ClearSSW 6 mph10 km/h
MondaySep 785°F30°C57°F14°C0 in0 mm· —5%ClearNW 4 mph7 km/h
TuesdaySep 888°F31°C59°F15°C0 in0 mm· —32%ClearW 4 mph6 km/h
WednesdaySep 989°F32°C62°F16°C0 in0.1 mm· 3%29%ClearWSW 4 mph7 km/h
ThursdaySep 1089°F32°C63°F17°C0.03 in0.8 mm· 5%22%ClearSW 4 mph7 km/h
FridaySep 1187°F31°C63°F17°C0.02 in0.5 mm· 5%21%ClearSSW 5 mph8 km/h
SaturdaySep 1284°F29°C62°F17°C0.02 in0.6 mm· 6%26%ClearSSW 5 mph8 km/h
SundaySep 1385°F30°C61°F16°C0.03 in0.8 mm· 7%24%ClearSW 5 mph7 km/h
MondaySep 1487°F30°C61°F16°C0.02 in0.4 mm· 3%18%ClearWSW 4 mph7 km/h
TuesdaySep 1589°F32°C61°F16°C0.01 in0.2 mm· 2%16%ClearSW 4 mph7 km/h
WednesdaySep 1689°F32°C61°F16°C0 in0.1 mm· 2%18%ClearSW 4 mph7 km/h

Nearby Cities

About This Forecast

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Coordinates: 38.5519°N, 121.3647°W·Elevation: 15m·Timezone: America/Los_Angeles·Population: 22,681