Current Conditions

Union City, California

67°F20°C

Clear

Wind

W 6 mph10 km/h

Humidity

69%

Cloud Cover

18%

As of Thursday, July 23, 2026 at 10:54 AM PDT

Today's Outlook

Day

Mostly clear and warm, with a high of 74°F23°C and morning low of 61°F16°C. Breezy from the W at 7 to 9 mph11 to 14 km/h.

Night

Partly cloudy, with a low around 58°F14°C. Light wind from the WSW around 4 mph7 km/h.

7-Day Forecast

Day	Condition	High (°F)	Low (°F)	Precip (mm)	Cloud Cover (%)	Wind (mph)
ThursdayJul 23	Clear	High 74°F23°C	Low 58°F14°C	Precip 0 in0 mm—	Cloud 28%	Wind W 6 mph9 km/h	Thursday: Mostly clear and warm, with a high of 74°F23°C and morning low of 61°F16°C. Breezy from the W at 7 to 9 mph11 to 14 km/h. Thursday Night: Partly cloudy, with a low around 58°F14°C. Light wind from the WSW around 4 mph7 km/h.
FridayJul 24	Clear	High 75°F24°C	Low 57°F14°C	Precip 0 in0 mm—	Cloud 29%	Wind W 5 mph9 km/h	Friday: Mostly clear and warm, with a high of 75°F24°C and morning low of 61°F16°C. Breezy from the W at 7 to 9 mph11 to 14 km/h. Friday Night: Partly cloudy, with a low around 57°F14°C. Light wind from the WSW around 4 mph6 km/h.
SaturdayJul 25	Clear	High 76°F24°C	Low 57°F14°C	Precip 0 in0 mm—	Cloud 29%	Wind W 6 mph9 km/h	Saturday: Mostly clear and warm, with a high of 76°F24°C and morning low of 61°F16°C. Breezy from the W at 7 to 9 mph11 to 14 km/h. Saturday Night: Partly cloudy, with a low around 57°F14°C. Light wind from the WSW around 4 mph7 km/h.
SundayJul 26	Clear	High 75°F24°C	Low 58°F14°C	Precip 0 in0 mm—	Cloud 32%	Wind WSW 6 mph9 km/h	Sunday: Partly cloudy and warm, with a high of 75°F24°C and morning low of 61°F16°C. Breezy from the W at 7 to 9 mph11 to 14 km/h. Sunday Night: Partly cloudy, with a low around 58°F14°C. Light wind from the WSW around 5 mph7 km/h.
MondayJul 27	Clear	High 77°F25°C	Low 57°F14°C	Precip 0 in0 mm—	Cloud 25%	Wind WSW 5 mph8 km/h	Monday: Mostly clear and warm, with a high of 77°F25°C and morning low of 60°F16°C. Breezy from the W at 6 to 8 mph10 to 13 km/h. Monday Night: Partly cloudy, with a low around 57°F14°C. Light wind from the SW around 4 mph7 km/h.
TuesdayJul 28	Clear	High 78°F26°C	Low 58°F14°C	Precip 0 in0 mm—	Cloud 15%	Wind WSW 5 mph8 km/h	Tuesday: Mostly clear and warm, with a high of 78°F26°C and morning low of 62°F17°C. Breezy from the WSW at 6 to 8 mph10 to 13 km/h. Tuesday Night: Mostly clear, with a low around 58°F14°C. Light wind from the SW around 4 mph7 km/h.
WednesdayJul 29	Clear	High 80°F27°C	Low 59°F15°C	Precip 0 in0 mm—	Cloud 18%	Wind WSW 5 mph8 km/h	Wednesday: Mostly clear and warm, with a high of 80°F27°C and morning low of 63°F17°C. Breezy from the WSW at 6 to 8 mph10 to 13 km/h. Wednesday Night: Mostly clear, with a low around 59°F15°C. Light wind from the SW around 4 mph6 km/h.

15-Day Forecast

	Day	High (°F)	Low (°F)	Precip (mm)	Cloud Cover (%)	Condition	Wind (mph)
	ThursdayJul 23	74°F23°C	58°F14°C	0 in0 mm· —	28%	Clear	W 6 mph9 km/h
DayMostly clear and warm, with a high of 74°F23°C and morning low of 61°F16°C. Breezy from the W at 7 to 9 mph11 to 14 km/h. NightPartly cloudy, with a low around 58°F14°C. Light wind from the WSW around 4 mph7 km/h.
	FridayJul 24	75°F24°C	57°F14°C	0 in0 mm· —	29%	Clear	W 5 mph9 km/h
DayMostly clear and warm, with a high of 75°F24°C and morning low of 61°F16°C. Breezy from the W at 7 to 9 mph11 to 14 km/h. NightPartly cloudy, with a low around 57°F14°C. Light wind from the WSW around 4 mph6 km/h.
	SaturdayJul 25	76°F24°C	57°F14°C	0 in0 mm· —	29%	Clear	W 6 mph9 km/h
DayMostly clear and warm, with a high of 76°F24°C and morning low of 61°F16°C. Breezy from the W at 7 to 9 mph11 to 14 km/h. NightPartly cloudy, with a low around 57°F14°C. Light wind from the WSW around 4 mph7 km/h.
	SundayJul 26	75°F24°C	58°F14°C	0 in0 mm· —	32%	Clear	WSW 6 mph9 km/h
DayPartly cloudy and warm, with a high of 75°F24°C and morning low of 61°F16°C. Breezy from the W at 7 to 9 mph11 to 14 km/h. NightPartly cloudy, with a low around 58°F14°C. Light wind from the WSW around 5 mph7 km/h.
	MondayJul 27	77°F25°C	57°F14°C	0 in0 mm· —	25%	Clear	WSW 5 mph8 km/h
DayMostly clear and warm, with a high of 77°F25°C and morning low of 60°F16°C. Breezy from the W at 6 to 8 mph10 to 13 km/h. NightPartly cloudy, with a low around 57°F14°C. Light wind from the SW around 4 mph7 km/h.
	TuesdayJul 28	78°F26°C	58°F14°C	0 in0 mm· —	15%	Clear	WSW 5 mph8 km/h
DayMostly clear and warm, with a high of 78°F26°C and morning low of 62°F17°C. Breezy from the WSW at 6 to 8 mph10 to 13 km/h. NightMostly clear, with a low around 58°F14°C. Light wind from the SW around 4 mph7 km/h.
	WednesdayJul 29	80°F27°C	59°F15°C	0 in0 mm· —	18%	Clear	WSW 5 mph8 km/h
DayMostly clear and warm, with a high of 80°F27°C and morning low of 63°F17°C. Breezy from the WSW at 6 to 8 mph10 to 13 km/h. NightMostly clear, with a low around 59°F15°C. Light wind from the SW around 4 mph6 km/h.
	ThursdayJul 30	80°F27°C	59°F15°C	0 in0 mm· —	18%	Clear	WSW 5 mph8 km/h
DayMostly clear and warm, with a high of 80°F27°C and morning low of 63°F17°C. Breezy from the WSW at 6 to 7 mph9 to 12 km/h. NightMostly clear, with a low around 59°F15°C. Light wind from the SW around 4 mph6 km/h.
	FridayJul 31	83°F28°C	59°F15°C	0 in0 mm· —	19%	Clear	WSW 5 mph7 km/h
DayMostly clear and warm, with a high of 83°F28°C and morning low of 63°F17°C. Breezy from the WSW at 5 to 7 mph9 to 12 km/h. NightMostly clear, with a low around 59°F15°C. Light wind from the SW around 4 mph6 km/h.
	SaturdayAug 1	85°F29°C	60°F16°C	0 in0 mm· —	14%	Clear	SW 5 mph7 km/h
DayMostly clear and warm, with a high of 85°F29°C and morning low of 64°F18°C. Breezy from the WSW at 5 to 7 mph8 to 11 km/h. NightMostly clear, with a low around 60°F16°C. Light wind from the SW around 4 mph6 km/h.
	SundayAug 2	85°F29°C	61°F16°C	0 in0 mm· —	10%	Clear	SW 5 mph7 km/h
DayMostly clear and warm, with a high of 85°F29°C and morning low of 65°F18°C. Breezy from the WSW at 5 to 7 mph9 to 12 km/h. NightMostly clear, with a low around 61°F16°C. Light wind from the SSW around 4 mph6 km/h.
	MondayAug 3	84°F29°C	61°F16°C	0 in0 mm· —	16%	Clear	SW 5 mph8 km/h
DayMostly clear and warm, with a high of 84°F29°C and morning low of 66°F19°C. Breezy from the WSW at 6 to 7 mph9 to 12 km/h. NightMostly clear, with a low around 61°F16°C. Light wind from the SW around 4 mph7 km/h.
	TuesdayAug 4	81°F27°C	60°F16°C	0 in0 mm· —	25%	Clear	SW 5 mph9 km/h
DayMostly clear and warm, with a high of 81°F27°C and morning low of 64°F18°C. Breezy from the WSW at 6 to 8 mph10 to 12 km/h. NightPartly cloudy, with a low around 60°F16°C. Light wind from the SW around 5 mph7 km/h.
	WednesdayAug 5	80°F27°C	60°F15°C	0 in0 mm· —	29%	Clear	WSW 5 mph8 km/h
DayMostly clear and warm, with a high of 80°F27°C and morning low of 63°F17°C. Breezy from the WSW at 6 to 7 mph9 to 12 km/h. NightPartly cloudy, with a low around 60°F15°C. Light wind from the SW around 4 mph7 km/h.
	ThursdayAug 6	79°F26°C	60°F16°C	0 in0 mm· —	33%	Clear	WSW 5 mph8 km/h
DayPartly cloudy and warm, with a high of 79°F26°C and morning low of 63°F17°C. Breezy from the WSW at 6 to 7 mph9 to 12 km/h. NightPartly cloudy, with a low around 60°F16°C. Light wind from the SW around 4 mph7 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

This forecast is powered by WeatherMesh, the world's most advanced and accurate weather model powered by AI. WeatherMesh is built on proprietary data from WindBorne's Global Sounding Balloon constellation — the world's largest fleet of autonomous, long-duration weather balloons — collecting observations across 100% of Earth, including over oceans and remote regions where no other data exists.

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