Current Conditions

Granite Bay, California

73°F23°C
Hot

Wind

NE 4 mph7 km/h

Humidity

41%

Cloud Cover

82%

As of Tuesday, September 8, 2026 at 10:55 PM PDT

Today's Outlook

Night

Mostly cloudy, with a low around 65°F18°C. Light wind from the NE around 4 mph6 km/h.

7-Day Forecast

DayConditionHigh (°F)Low (°F)Precip (mm)Cloud Cover (%)Wind (mph)
HotHigh 99°F37°CLow 65°F18°CPrecip 0 in0 mmCloud 70%Wind N 5 mph8 km/hWednesday: Mostly cloudy and hot, with a high of 99°F37°C and morning low of 69°F21°C. Breezy from the NW at 6 to 8 mph9 to 12 km/h. Heat risk in the afternoon. Wednesday Night: Mostly cloudy, with a low around 65°F18°C. Light wind from the NE around 4 mph6 km/h.
HotHigh 100°F38°CLow 70°F21°CPrecip 0 in0 mmCloud 36%Wind S 5 mph8 km/hThursday: Partly cloudy and hot, with a high of 100°F38°C and morning low of 74°F23°C. Light wind from the SW around 4 mph7 km/h. Heat risk in the afternoon. Thursday Night: Partly cloudy, with a low around 70°F21°C. Light wind from the SE around 5 mph8 km/h.
ClearHigh 93°F34°CLow 71°F22°CPrecip 0 in0 mmCloud 3%Wind S 7 mph11 km/hFriday: Mostly clear and hot, with a high of 93°F34°C and morning low of 73°F23°C. Breezy from the S at 7 mph11 km/h. Dry air. Friday Night: Mostly clear, with a low around 71°F22°C. Breezy from the SSE at 7 mph11 km/h.
ClearHigh 86°F30°CLow 65°F18°CPrecip 0 in0 mmCloud 8%Wind S 8 mph12 km/hSaturday: Mostly clear and hot, with a high of 86°F30°C and morning low of 67°F19°C. Breezy from the S at 9 to 10 mph14 to 15 km/h. Dry air. Saturday Night: Mostly clear, with a low around 65°F18°C. Breezy from the SSE at 7 to 8 mph11 to 13 km/h.
ClearHigh 84°F29°CLow 59°F15°CPrecip 0 in0 mmCloud 8%Wind W 5 mph9 km/hSunday: Mostly clear and warm, with a high of 84°F29°C and morning low of 63°F17°C. Breezy from the WNW at 6 to 7 mph10 to 11 km/h. Dry air. Sunday Night: Mostly clear, with a low around 59°F15°C. Light wind from the S around 5 mph8 km/h.
ClearHigh 87°F30°CLow 58°F14°CPrecip 0 in0 mmCloud 7%Wind WSW 4 mph6 km/hMonday: Mostly clear and hot, with a high of 87°F30°C and morning low of 61°F16°C. Light wind from the W around 4 mph7 km/h. Dry air. Monday Night: Mostly clear, with a low around 58°F14°C. Light wind from the SE around 3 mph6 km/h.
ClearHigh 85°F29°CLow 58°F14°CPrecip 0 in0 mmCloud 15%Wind S 4 mph7 km/hTuesday: Mostly clear and warm, with a high of 85°F29°C and morning low of 61°F16°C. Light wind from the SSW around 5 mph7 km/h. Dry air. Tuesday Night: Mostly clear, with a low around 58°F14°C. Light wind from the SSE around 4 mph7 km/h.

15-Day Forecast

Day High Low Precip Cloud Cover Condition Wind
WednesdaySep 999°F37°C65°F18°C0 in0 mm· —70%HotN 5 mph8 km/h
ThursdaySep 10100°F38°C70°F21°C0 in0 mm· —36%HotS 5 mph8 km/h
FridaySep 1193°F34°C71°F22°C0 in0 mm· —3%ClearS 7 mph11 km/h
SaturdaySep 1286°F30°C65°F18°C0 in0 mm· —8%ClearS 8 mph12 km/h
SundaySep 1384°F29°C59°F15°C0 in0 mm· —8%ClearW 5 mph9 km/h
MondaySep 1487°F30°C58°F14°C0 in0 mm· —7%ClearWSW 4 mph6 km/h
TuesdaySep 1585°F29°C58°F14°C0 in0 mm· —15%ClearS 4 mph7 km/h
WednesdaySep 1683°F28°C58°F15°C0 in0 mm· —11%ClearS 5 mph7 km/h
ThursdaySep 1785°F30°C57°F14°C0 in0 mm· —8%ClearSSW 4 mph6 km/h
FridaySep 1886°F30°C58°F14°C0 in0.1 mm· 2%14%ClearSSW 4 mph6 km/h
SaturdaySep 1986°F30°C59°F15°C0 in0 mm· —20%ClearS 4 mph6 km/h
SundaySep 2086°F30°C60°F16°C0.01 in0.3 mm· 3%26%ClearS 4 mph7 km/h
MondaySep 2187°F30°C61°F16°C0 in0.1 mm· 4%22%ClearS 4 mph7 km/h
TuesdaySep 2287°F31°C61°F16°C0.02 in0.5 mm· 6%23%ClearSSW 5 mph8 km/h
WednesdaySep 2387°F30°C61°F16°C0 in0.1 mm· 3%20%ClearSSW 5 mph8 km/h

Nearby Cities

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.

WeatherMesh consistently outperforms legacy models in independent benchmarks. View Benchmarks →

Access WeatherMesh forecasts programmatically via our API. API Documentation →

How to Access Weather Forecasts

PatternExampleDescription
/weather/{country}/{city}//weather/united-states/san-francisco/City forecast (canonical URL)
/weather/{city}//weather/tokyo/Shorthand — redirects to most populous match
/weather/{country}/{region}/{city}//weather/united-states/california/san-francisco/With region — redirects to canonical
/weather/nearby?lat={lat}&lon={lon}/weather/nearby?lat=48.1&lon=11.5Find nearest city by coordinates
/weather/{country}//weather/germany/Country index — all cities by region

Country and city names use lowercase slugs with hyphens (e.g. united-states, san-francisco). Arbitrary city names are supported — if not in our database, we geocode the name and serve the forecast for that location.

For programmatic access, use theWindBorne Forecast APIwhich returns structured JSON for any coordinates worldwide.

Coordinates: 38.7632°N, 121.1638°W·Elevation: 130m·Timezone: America/Los_Angeles·Population: 20,402