Current Conditions

İstinye, Istanbul

79°F26°C
Drizzle

Wind

NE 14 mph22 km/h

Humidity

80%

Cloud Cover

10%

As of Wednesday, August 12, 2026 at 10:22 PM GMT+3

Today's Outlook

Night

Mostly clear, with a low around 76°F24°C. Windy from the NE at 17 to 23 mph28 to 37 km/h. 10% chance of drizzle.

7-Day Forecast

DayConditionHigh (°F)Low (°F)Precip (mm)Cloud Cover (%)Wind (mph)
DrizzleHigh 82°F28°CFeels 87°F31°CLow 76°F24°CPrecip 0.03 in0.7 mm52%Cloud 21%Wind NE 18 mph29 km/hThursday: Partly cloudy and warm, with a high of 82°F28°C and morning low of 78°F25°C — feels like 88°F31°C. Windy from the NE at 18 to 22 mph30 to 36 km/h. 52% chance of drizzle around midday. Heavy, humid air. Thursday Night: Mostly clear, with a low around 76°F24°C. Windy from the NE at 17 to 23 mph28 to 37 km/h. 10% chance of drizzle.
DrizzleHigh 78°F26°CLow 74°F24°CPrecip 0.01 in0.2 mm11%Cloud 36%Wind NE 18 mph29 km/hFriday: Partly cloudy and warm, with a high of 78°F26°C. Windy from the NE at 18 to 20 mph29 to 32 km/h. 11% chance of drizzle around midday. Friday Night: Partly cloudy, with a low around 74°F24°C. Windy from the NE at 18 to 20 mph29 to 33 km/h.
ClearHigh 79°F26°CLow 74°F23°CPrecip 0 in0.1 mm3%Cloud 38%Wind NE 19 mph30 km/hSaturday: Partly cloudy and warm, with a high of 79°F26°C and morning low of 74°F23°C. Windy from the ENE at 19 to 21 mph31 to 33 km/h. Saturday Night: Partly cloudy, with a low around 74°F23°C. Windy from the NE at 18 to 20 mph29 to 33 km/h.
Partly CloudyHigh 79°F26°CLow 73°F23°CPrecip 0 in0.1 mm1%Cloud 52%Wind NE 16 mph25 km/hSunday: Mostly cloudy and warm, with a high of 79°F26°C and morning low of 73°F23°C. Windy from the NE at 16 to 17 mph26 to 28 km/h. Sunday Night: Partly cloudy, with a low around 74°F23°C. Windy from the NE at 15 to 16 mph24 to 26 km/h.
ClearHigh 81°F27°CLow 72°F22°CPrecip 0 in0 mmCloud 26%Wind NE 11 mph17 km/hMonday: Partly cloudy and warm, with a high of 81°F27°C and morning low of 72°F22°C. Breezy from the NE at 11 to 12 mph18 to 19 km/h. Monday Night: Mostly clear, with a low around 73°F23°C. Breezy from the NE at 10 to 12 mph16 to 20 km/h.
ClearHigh 83°F28°CLow 69°F21°CPrecip 0 in0 mmCloud 6%Wind NE 7 mph11 km/hTuesday: Mostly clear and warm, with a high of 83°F28°C and morning low of 69°F21°C. Breezy from the NE at 6 to 8 mph10 to 12 km/h. Tuesday Night: Mostly clear, with a low around 70°F21°C. Breezy from the ENE at 7 to 9 mph11 to 15 km/h.
ClearHigh 86°F30°CLow 69°F21°CPrecip 0 in0.1 mm3%Cloud 7%Wind ENE 6 mph10 km/hWednesday: Mostly clear and warm, with a high of 86°F30°C and morning low of 69°F21°C. Breezy from the NE at 6 to 7 mph9 to 12 km/h. Humid. Wednesday Night: Mostly clear, with a low around 70°F21°C. Breezy from the ENE at 7 to 9 mph11 to 14 km/h.

15-Day Forecast

Day High Low Precip Cloud Cover Condition Wind
ThursdayAug 1382°F28°C
Feels 87°F31°C
76°F24°C0.03 in0.7 mm· 52%21%DrizzleNE 18 mph29 km/h
FridayAug 1478°F26°C74°F24°C0.01 in0.2 mm· 11%36%DrizzleNE 18 mph29 km/h
SaturdayAug 1579°F26°C74°F23°C0 in0.1 mm· 3%38%ClearNE 19 mph30 km/h
SundayAug 1679°F26°C73°F23°C0 in0.1 mm· 1%52%Partly CloudyNE 16 mph25 km/h
MondayAug 1781°F27°C72°F22°C0 in0 mm· —26%ClearNE 11 mph17 km/h
TuesdayAug 1883°F28°C69°F21°C0 in0 mm· —6%ClearNE 7 mph11 km/h
WednesdayAug 1986°F30°C69°F21°C0 in0.1 mm· 3%7%ClearENE 6 mph10 km/h
ThursdayAug 2086°F30°C72°F22°C0.01 in0.2 mm· 5%12%ClearNE 8 mph12 km/h
FridayAug 2184°F29°C72°F22°C0.01 in0.3 mm· 4%17%ClearNE 9 mph14 km/h
SaturdayAug 2283°F29°C
Feels 86°F30°C
73°F23°C0.01 in0.3 mm· 6%20%ClearNE 10 mph16 km/h
SundayAug 2383°F28°C73°F23°C0.01 in0.2 mm· 3%20%ClearNE 11 mph17 km/h
MondayAug 2483°F28°C73°F23°C0.03 in0.8 mm· 8%25%ClearNE 10 mph17 km/h
TuesdayAug 2583°F28°C73°F23°C0.02 in0.5 mm· 5%22%ClearNE 10 mph16 km/h
WednesdayAug 2683°F29°C73°F23°C0.02 in0.5 mm· 8%21%ClearNE 10 mph15 km/h
ThursdayAug 2783°F28°C72°F22°C0.04 in0.9 mm· 9%25%ClearNE 9 mph15 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: 41.1101°N, 29.0509°E·Elevation: 72m·Timezone: Europe/Istanbul·Population: 15,721