Current Conditions

Union City, California

58°F15°C

Clear

Wind

SW 4 mph6 km/h

Humidity

92%

Cloud Cover

47%

As of Friday, July 24, 2026 at 1:58 AM PDT

Today's Outlook

Day

Mostly clear and warm, with a high of 74°F24°C and morning low of 60°F16°C. Breezy from the W at 7 to 9 mph11 to 14 km/h.

Night

Partly cloudy, with a low around 57°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)
FridayJul 24	Clear	High 74°F24°C	Low 57°F14°C	Precip 0 in0 mm—	Cloud 31%	Wind WSW 6 mph9 km/h	Friday: Mostly clear and warm, with a high of 74°F24°C and morning low of 60°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 mph7 km/h.
SaturdayJul 25	Clear	High 75°F24°C	Low 56°F13°C	Precip 0 in0 mm—	Cloud 26%	Wind WSW 6 mph9 km/h	Saturday: Mostly clear and warm, with a high of 75°F24°C and morning low of 60°F16°C. Breezy from the W at 7 to 9 mph12 to 15 km/h. Saturday Night: Partly cloudy, with a low around 56°F13°C. Light wind from the WSW around 4 mph6 km/h.
SundayJul 26	Clear	High 75°F24°C	Low 58°F14°C	Precip 0 in0 mm—	Cloud 30%	Wind WSW 6 mph9 km/h	Sunday: 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 8 mph11 to 13 km/h. Sunday Night: Partly cloudy, with a low around 58°F14°C. Light wind from the SW around 4 mph7 km/h.
MondayJul 27	Clear	High 76°F24°C	Low 57°F14°C	Precip 0 in0 mm—	Cloud 26%	Wind WSW 5 mph8 km/h	Monday: Mostly clear and warm, with a high of 76°F24°C and morning low of 60°F15°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 80°F27°C	Low 57°F14°C	Precip 0 in0 mm—	Cloud 13%	Wind WSW 5 mph8 km/h	Tuesday: Mostly clear and warm, with a high of 80°F27°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 57°F14°C. Light wind from the SW around 4 mph7 km/h.
WednesdayJul 29	Clear	High 81°F27°C	Low 60°F15°C	Precip 0 in0 mm—	Cloud 18%	Wind SW 5 mph8 km/h	Wednesday: Mostly clear and warm, with a high of 81°F27°C and morning low of 63°F17°C. Breezy from the WSW at 6 to 8 mph9 to 12 km/h. Wednesday Night: Mostly clear, with a low around 60°F15°C. Light wind from the SW around 4 mph6 km/h.
ThursdayJul 30	Clear	High 81°F27°C	Low 59°F15°C	Precip 0 in0 mm—	Cloud 16%	Wind WSW 5 mph8 km/h	Thursday: Mostly clear and warm, with a high of 81°F27°C and morning low of 63°F17°C. Breezy from the WSW at 6 to 7 mph9 to 11 km/h. Thursday 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)
	FridayJul 24	74°F24°C	57°F14°C	0 in0 mm· —	31%	Clear	WSW 6 mph9 km/h
DayMostly clear and warm, with a high of 74°F24°C and morning low of 60°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.
	SaturdayJul 25	75°F24°C	56°F13°C	0 in0 mm· —	26%	Clear	WSW 6 mph9 km/h
DayMostly clear and warm, with a high of 75°F24°C and morning low of 60°F16°C. Breezy from the W at 7 to 9 mph12 to 15 km/h. NightPartly cloudy, with a low around 56°F13°C. Light wind from the WSW around 4 mph6 km/h.
	SundayJul 26	75°F24°C	58°F14°C	0 in0 mm· —	30%	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 8 mph11 to 13 km/h. NightPartly cloudy, with a low around 58°F14°C. Light wind from the SW around 4 mph7 km/h.
	MondayJul 27	76°F24°C	57°F14°C	0 in0 mm· —	26%	Clear	WSW 5 mph8 km/h
DayMostly clear and warm, with a high of 76°F24°C and morning low of 60°F15°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	80°F27°C	57°F14°C	0 in0 mm· —	13%	Clear	WSW 5 mph8 km/h
DayMostly clear and warm, with a high of 80°F27°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 57°F14°C. Light wind from the SW around 4 mph7 km/h.
	WednesdayJul 29	81°F27°C	60°F15°C	0 in0 mm· —	18%	Clear	SW 5 mph8 km/h
DayMostly clear and warm, with a high of 81°F27°C and morning low of 63°F17°C. Breezy from the WSW at 6 to 8 mph9 to 12 km/h. NightMostly clear, with a low around 60°F15°C. Light wind from the SW around 4 mph6 km/h.
	ThursdayJul 30	81°F27°C	59°F15°C	0 in0 mm· —	16%	Clear	WSW 5 mph8 km/h
DayMostly clear and warm, with a high of 81°F27°C and morning low of 63°F17°C. Breezy from the WSW at 6 to 7 mph9 to 11 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	60°F15°C	0 in0 mm· —	18%	Clear	WSW 4 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 mph8 to 11 km/h. NightMostly clear, with a low around 60°F15°C. Light wind from the SW around 4 mph6 km/h.
	SaturdayAug 1	84°F29°C	60°F16°C	0 in0 mm· —	14%	Clear	SW 4 mph7 km/h
DayMostly clear and warm, with a high of 84°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· —	12%	Clear	SW 5 mph7 km/h
DayMostly clear and warm, with a high of 85°F29°C and morning low of 66°F19°C. Breezy from the WSW at 5 to 7 mph8 to 11 km/h. NightMostly clear, with a low around 61°F16°C. Light wind from the SSW around 4 mph7 km/h.
	MondayAug 3	82°F28°C	61°F16°C	0 in0 mm· —	16%	Clear	SW 5 mph8 km/h
DayMostly clear and warm, with a high of 82°F28°C and morning low of 64°F18°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· —	19%	Clear	SW 5 mph8 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 7 mph9 to 12 km/h. NightMostly clear, with a low around 60°F16°C. Light wind from the SW around 4 mph7 km/h.
	WednesdayAug 5	80°F27°C	60°F16°C	0 in0 mm· —	24%	Clear	SW 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 11 km/h. NightPartly cloudy, with a low around 60°F16°C. Light wind from the SW around 4 mph7 km/h.
	ThursdayAug 6	81°F27°C	61°F16°C	0 in0 mm· —	27%	Clear	WSW 5 mph8 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 7 mph9 to 11 km/h. NightPartly cloudy, with a low around 61°F16°C. Light wind from the SW around 4 mph7 km/h.
	FridayAug 7	81°F27°C	61°F16°C	0 in0 mm· —	31%	Clear	WSW 5 mph8 km/h
DayPartly cloudy and warm, with a high of 81°F27°C and morning low of 64°F18°C. Breezy from the WSW at 6 to 7 mph9 to 12 km/h. NightPartly cloudy, with a low around 61°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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/weather/{country}/{region}/{city}/	/weather/united-states/california/san-francisco/	With region — redirects to canonical
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Coordinates: 37.5958°N, 122.0191°W·Elevation: 21m·Timezone: America/Los_Angeles·Population: 74,494