Current Conditions

Clearlake, California

59°F15°C
Clear

Wind

NNE 3 mph5 km/h

Humidity

73%

Cloud Cover

19%

As of Wednesday, September 23, 2026 at 4:10 AM PDT

Today's Outlook

Day

Mostly clear and hot, with a high of 87°F31°C and morning low of 62°F16°C. Light wind from the ESE around 3 mph4 km/h. Dry air.

Night

Mostly clear, with a low around 59°F15°C. Light wind from the NNW around 3 mph4 km/h.

7-Day Forecast

DayConditionHigh (°F)Low (°F)Precip (mm)Cloud Cover (%)Wind (mph)
ClearHigh 87°F31°CLow 59°F15°CPrecip 0 in0 mmCloud 15%Wind NNE 3 mph4 km/hWednesday: Mostly clear and hot, with a high of 87°F31°C and morning low of 62°F16°C. Light wind from the ESE around 3 mph4 km/h. Dry air. Wednesday Night: Mostly clear, with a low around 59°F15°C. Light wind from the NNW around 3 mph4 km/h.
Partly CloudyHigh 87°F30°CLow 63°F17°CPrecip 0 in0 mmCloud 66%Wind WSW 4 mph7 km/hThursday: Overcast and hot, with a high of 87°F30°C and morning low of 63°F17°C. Breezy from the SW at 5 to 8 mph7 to 12 km/h. Dry air. Thursday Night: Mostly cloudy, with a low around 63°F17°C. Light wind from the W around 4 mph6 km/h.
Partly CloudyHigh 80°F27°CLow 60°F16°CPrecip 0.02 in0.5 mm1%Cloud 40%Wind W 5 mph8 km/hFriday: Partly cloudy and warm, with a high of 80°F27°C and morning low of 63°F17°C. Light wind from the W around 5 mph9 km/h. Dry air. Friday Night: Partly cloudy, with a low around 60°F16°C. Light wind from the W around 5 mph8 km/h.
Partly CloudyHigh 78°F26°CLow 56°F14°CPrecip 0 in0 mmCloud 45%Wind SE 4 mph6 km/hSaturday: Partly cloudy and warm, with a high of 78°F26°C and morning low of 58°F15°C. Light wind from the SE around 4 mph7 km/h. Dry air. Saturday Night: Partly cloudy, with a low around 56°F14°C. Light wind from the NNW around 3 mph5 km/h.
ClearHigh 76°F24°CLow 56°F13°CPrecip 0 in0.1 mm3%Cloud 32%Wind WSW 3 mph5 km/hSunday: Partly cloudy and warm, with a high of 76°F24°C and morning low of 57°F14°C. Light wind from the SSW around 3 mph5 km/h. Dry air. Sunday Night: Partly cloudy, with a low around 56°F13°C. Light wind from the W around 2 mph4 km/h.
ClearHigh 80°F27°CLow 55°F13°CPrecip 0 in0 mmCloud 9%Wind NNW 3 mph5 km/hMonday: Mostly clear and warm, with a high of 80°F27°C and morning low of 57°F14°C. Light wind from the N around 3 mph5 km/h. Dry air. Monday Night: Mostly clear, with a low around 55°F13°C. Light wind from the NNW around 3 mph5 km/h.
ClearHigh 85°F29°CLow 58°F14°CPrecip 0 in0 mmCloud 5%Wind NW 3 mph5 km/hTuesday: Mostly clear and warm, with a high of 85°F29°C and morning low of 59°F15°C. Light wind from the NNW around 3 mph5 km/h. Dry air. Tuesday Night: Mostly clear, with a low around 58°F14°C. Light wind from the NW around 3 mph5 km/h.

15-Day Forecast

Day High Low Precip Cloud Cover Condition Wind
WednesdaySep 2387°F31°C59°F15°C0 in0 mm· —15%ClearNNE 3 mph4 km/h
ThursdaySep 2487°F30°C63°F17°C0 in0 mm· —66%Partly CloudyWSW 4 mph7 km/h
FridaySep 2580°F27°C60°F16°C0.02 in0.5 mm· 1%40%Partly CloudyW 5 mph8 km/h
SaturdaySep 2678°F26°C56°F14°C0 in0 mm· —45%Partly CloudySE 4 mph6 km/h
SundaySep 2776°F24°C56°F13°C0 in0.1 mm· 3%32%ClearWSW 3 mph5 km/h
MondaySep 2880°F27°C55°F13°C0 in0 mm· —9%ClearNNW 3 mph5 km/h
TuesdaySep 2985°F29°C58°F14°C0 in0 mm· —5%ClearNW 3 mph5 km/h
WednesdaySep 3085°F29°C60°F15°C0 in0.1 mm· 2%17%ClearWNW 3 mph5 km/h
ThursdayOct 184°F29°C60°F15°C0.02 in0.4 mm· 2%33%ClearWNW 3 mph5 km/h
FridayOct 284°F29°C59°F15°C0.01 in0.3 mm· 3%13%ClearN 3 mph5 km/h
SaturdayOct 385°F29°C60°F16°C0 in0.1 mm· 2%14%ClearN 4 mph6 km/h
SundayOct 484°F29°C60°F16°C0 in0 mm· —17%ClearNNW 4 mph6 km/h
MondayOct 584°F29°C59°F15°C0.01 in0.2 mm· 2%10%ClearNW 4 mph6 km/h
TuesdayOct 684°F29°C60°F16°C0 in0.1 mm· 3%9%ClearNW 4 mph6 km/h
WednesdayOct 782°F28°C60°F15°C0.04 in0.9 mm· 5%16%ClearWNW 4 mph6 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.

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Coordinates: 38.9582°N, 122.6264°W·Elevation: 432m·Timezone: America/Los_Angeles·Population: 15,182