Current Conditions

Union City, California

88°F31°C

Partly Cloudy

Wind

WNW 4 mph7 km/h

Humidity

27%

Cloud Cover

63%

As of Tuesday, September 8, 2026 at 5:46 PM PDT

Today's Outlook

Day

Partly cloudy and hot, with a high of 88°F31°C and morning low of 80°F27°C. Light wind from the NW around 3 mph5 km/h. Dry air.

Night

Overcast, with a low around 72°F22°C. Light wind from the WSW around 3 mph5 km/h.

7-Day Forecast

Condition	High (°F)	Low (°F)	Precip (mm)	Cloud Cover (%)	Wind (mph)
Partly Cloudy	High 88°F31°C	Low 72°F22°C	Precip 0 in0 mm—	Cloud 60%	Wind WNW 3 mph5 km/h	Tuesday: Partly cloudy and hot, with a high of 88°F31°C and morning low of 80°F27°C. Light wind from the NW around 3 mph5 km/h. Dry air. Tuesday Night: Overcast, with a low around 72°F22°C. Light wind from the WSW around 3 mph5 km/h.
Partly Cloudy	High 94°F34°C	Low 68°F20°C	Precip 0 in0 mm—	Cloud 68%	Wind NNW 4 mph6 km/h	Wednesday: Mostly cloudy and hot, with a high of 94°F34°C and morning low of 70°F21°C. Light wind from the N around 4 mph7 km/h. Dry air. Wednesday Night: Mostly cloudy, with a low around 68°F20°C. Light wind from the WSW around 3 mph5 km/h.
Clear	High 90°F32°C	Low 69°F21°C	Precip 0 in0 mm—	Cloud 18%	Wind WSW 5 mph7 km/h	Thursday: Mostly clear and hot, with a high of 90°F32°C and morning low of 73°F23°C. Breezy from the W at 6 to 8 mph9 to 13 km/h. Thursday Night: Mostly clear, with a low around 69°F21°C. Light wind from the SW around 3 mph5 km/h.
Clear	High 80°F26°C	Low 63°F17°C	Precip 0 in0 mm—	Cloud 11%	Wind WSW 5 mph8 km/h	Friday: Mostly clear and warm, with a high of 80°F26°C and morning low of 65°F18°C. Breezy from the WSW at 6 to 8 mph10 to 12 km/h. Friday Night: Mostly clear, with a low around 63°F17°C. Light wind from the SW around 4 mph6 km/h.
Clear	High 75°F24°C	Low 59°F15°C	Precip 0 in0 mm—	Cloud 12%	Wind WSW 6 mph9 km/h	Saturday: Mostly clear and warm, with a high of 75°F24°C and morning low of 61°F16°C. Breezy from the WSW at 7 to 9 mph12 to 14 km/h. Saturday Night: Mostly clear, with a low around 59°F15°C. Light wind from the WSW around 5 mph7 km/h.
Clear	High 78°F25°C	Low 57°F14°C	Precip 0 in0 mm—	Cloud 10%	Wind W 5 mph8 km/h	Sunday: Mostly clear and warm, with a high of 78°F25°C and morning low of 60°F16°C. Breezy from the WNW at 6 to 8 mph9 to 13 km/h. Dry air. Sunday Night: Mostly clear, with a low around 57°F14°C. Light wind from the WSW around 4 mph6 km/h.
Clear	High 79°F26°C	Low 57°F14°C	Precip 0 in0 mm—	Cloud 14%	Wind WSW 4 mph7 km/h	Monday: Mostly clear and warm, with a high of 79°F26°C and morning low of 59°F15°C. Breezy from the W at 5 to 8 mph8 to 12 km/h. Monday Night: Mostly clear, with a low around 57°F14°C. Light wind from the SW around 3 mph6 km/h.

15-Day Forecast

	Day	High	Low	Precip	Cloud Cover	Condition	Wind
	TuesdaySep 8	88°F31°C	72°F22°C	0 in0 mm· —	60%	Partly Cloudy	WNW 3 mph5 km/h
DayPartly cloudy and hot, with a high of 88°F31°C and morning low of 80°F27°C. Light wind from the NW around 3 mph5 km/h. Dry air. NightOvercast, with a low around 72°F22°C. Light wind from the WSW around 3 mph5 km/h.
	WednesdaySep 9	94°F34°C	68°F20°C	0 in0 mm· —	68%	Partly Cloudy	NNW 4 mph6 km/h
DayMostly cloudy and hot, with a high of 94°F34°C and morning low of 70°F21°C. Light wind from the N around 4 mph7 km/h. Dry air. NightMostly cloudy, with a low around 68°F20°C. Light wind from the WSW around 3 mph5 km/h.
	ThursdaySep 10	90°F32°C	69°F21°C	0 in0 mm· —	18%	Clear	WSW 5 mph7 km/h
DayMostly clear and hot, with a high of 90°F32°C and morning low of 73°F23°C. Breezy from the W at 6 to 8 mph9 to 13 km/h. NightMostly clear, with a low around 69°F21°C. Light wind from the SW around 3 mph5 km/h.
	FridaySep 11	80°F26°C	63°F17°C	0 in0 mm· —	11%	Clear	WSW 5 mph8 km/h
DayMostly clear and warm, with a high of 80°F26°C and morning low of 65°F18°C. Breezy from the WSW at 6 to 8 mph10 to 12 km/h. NightMostly clear, with a low around 63°F17°C. Light wind from the SW around 4 mph6 km/h.
	SaturdaySep 12	75°F24°C	59°F15°C	0 in0 mm· —	12%	Clear	WSW 6 mph9 km/h
DayMostly clear and warm, with a high of 75°F24°C and morning low of 61°F16°C. Breezy from the WSW at 7 to 9 mph12 to 14 km/h. NightMostly clear, with a low around 59°F15°C. Light wind from the WSW around 5 mph7 km/h.
	SundaySep 13	78°F25°C	57°F14°C	0 in0 mm· —	10%	Clear	W 5 mph8 km/h
DayMostly clear and warm, with a high of 78°F25°C and morning low of 60°F16°C. Breezy from the WNW at 6 to 8 mph9 to 13 km/h. Dry air. NightMostly clear, with a low around 57°F14°C. Light wind from the WSW around 4 mph6 km/h.
	MondaySep 14	79°F26°C	57°F14°C	0 in0 mm· —	14%	Clear	WSW 4 mph7 km/h
DayMostly clear and warm, with a high of 79°F26°C and morning low of 59°F15°C. Breezy from the W at 5 to 8 mph8 to 12 km/h. NightMostly clear, with a low around 57°F14°C. Light wind from the SW around 3 mph6 km/h.
	TuesdaySep 15	75°F24°C	57°F14°C	0 in0 mm· —	35%	Clear	WSW 5 mph8 km/h
DayPartly cloudy and warm, with a high of 75°F24°C and morning low of 60°F16°C. Breezy from the WSW at 6 to 8 mph9 to 12 km/h. NightPartly cloudy, with a low around 57°F14°C. Light wind from the SW around 4 mph7 km/h.
	WednesdaySep 16	74°F24°C	58°F14°C	0 in0 mm· —	36%	Clear	WSW 5 mph8 km/h
DayPartly cloudy and warm, with a high of 74°F24°C and morning low of 60°F15°C. Breezy from the WSW at 6 to 7 mph9 to 12 km/h. NightPartly cloudy, with a low around 58°F14°C. Light wind from the SW around 4 mph7 km/h.
	ThursdaySep 17	76°F25°C	57°F14°C	0 in0 mm· —	27%	Clear	WSW 4 mph7 km/h
DayMostly clear and warm, with a high of 76°F25°C and morning low of 60°F16°C. Breezy from the W at 5 to 7 mph8 to 11 km/h. NightPartly cloudy, with a low around 57°F14°C. Light wind from the SW around 4 mph6 km/h.
	FridaySep 18	77°F25°C	57°F14°C	0 in0 mm· —	27%	Clear	W 4 mph6 km/h
DayPartly cloudy and warm, with a high of 77°F25°C and morning low of 59°F15°C. Breezy from the W at 5 to 7 mph8 to 11 km/h. NightPartly cloudy, with a low around 57°F14°C. Light wind from the WSW around 3 mph5 km/h.
	SaturdaySep 19	78°F25°C	58°F14°C	0 in0 mm· —	34%	Clear	WSW 4 mph7 km/h
DayPartly cloudy and warm, with a high of 78°F25°C and morning low of 59°F15°C. Breezy from the W at 5 to 7 mph8 to 11 km/h. NightPartly cloudy, with a low around 58°F14°C. Light wind from the SW around 3 mph5 km/h.
	SundaySep 20	77°F25°C	58°F14°C	0.01 in0.3 mm· 2%	38%	Clear	WSW 4 mph7 km/h
DayPartly cloudy and warm, with a high of 77°F25°C and morning low of 60°F16°C. Breezy from the W at 5 to 7 mph8 to 11 km/h. NightPartly cloudy, with a low around 58°F14°C. Light wind from the SW around 4 mph6 km/h.
	MondaySep 21	77°F25°C	59°F15°C	0.01 in0.3 mm· 3%	42%	Partly Cloudy	WSW 5 mph7 km/h
DayPartly cloudy and warm, with a high of 77°F25°C and morning low of 60°F16°C. Breezy from the WSW at 5 to 7 mph8 to 11 km/h. NightPartly cloudy, with a low around 59°F15°C. Light wind from the SW around 4 mph6 km/h.
	TuesdaySep 22	78°F25°C	59°F15°C	0 in0.1 mm· 4%	38%	Clear	WSW 4 mph7 km/h
DayPartly cloudy and warm, with a high of 78°F25°C and morning low of 61°F16°C. Breezy from the W at 5 to 7 mph8 to 11 km/h. NightPartly cloudy, with a low around 59°F15°C. Light wind from the SW around 4 mph6 km/h.

Nearby Cities

Fremont4 mi6 km Newark5 mi8 km Hayward6 mi10 km Castro Valley8 mi12 km San Lorenzo8 mi13 km Ashland9 mi14 km

About This Forecast

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Coordinates: 37.5958°N, 122.0191°W·Elevation: 21m·Timezone: America/Los_Angeles·Population: 74,494