Current Conditions

Castelar, Buenos Aires

49°F10°C
Drizzle

Wind

NNE 7 mph11 km/h

Humidity

81%

Cloud Cover

2%

As of Wednesday, September 9, 2026 at 12:35 AM GMT-3

Today's Outlook

Day

Mostly cloudy and mild, with a high of 66°F19°C and morning low of 45°F7°C. Breezy from the NNE at 7 to 8 mph11 to 13 km/h. Dry air.

Night

Partly cloudy, with a low around 47°F8°C. Light wind from the NE around 6 mph9 km/h. 10% chance of drizzle.

7-Day Forecast

DayConditionHigh (°F)Low (°F)Precip (mm)Cloud Cover (%)Wind (mph)
DrizzleHigh 66°F19°CLow 45°F7°CFeels 42°F6°CPrecip 0 in0.1 mm10%Cloud 59%Wind NNE 6 mph10 km/hWednesday: Mostly cloudy and mild, with a high of 66°F19°C and morning low of 45°F7°C. Breezy from the NNE at 7 to 8 mph11 to 13 km/h. Dry air. Wednesday Night: Partly cloudy, with a low around 47°F8°C. Light wind from the NE around 6 mph9 km/h. 10% chance of drizzle.
ClearHigh 68°F20°CLow 47°F8°CPrecip 0.01 in0.2 mm9%Cloud 34%Wind NE 5 mph8 km/hThursday: Mostly clear and mild, with a high of 68°F20°C and morning low of 47°F8°C. Light wind from the NNE around 4 mph6 km/h. Dry air. Thursday Night: Mostly cloudy, with a low around 50°F10°C. Breezy from the NE at 6 to 7 mph9 to 11 km/h.
CloudyHigh 63°F17°CLow 50°F10°CPrecip 0.01 in0.2 mm8%Cloud 93%Wind SE 7 mph11 km/hFriday: Overcast and mild, with a high of 63°F17°C and morning low of 50°F10°C. Breezy from the SE at 7 to 9 mph11 to 14 km/h. Dry air. Friday Night: Overcast, with a low around 50°F10°C. Breezy from the SE at 7 to 9 mph11 to 14 km/h.
DrizzleHigh 51°F11°CLow 46°F8°CFeels 41°F5°CPrecip 0.02 in0.6 mm11%Cloud 85%Wind SSE 12 mph20 km/hSaturday: Overcast and mild, with a high of 51°F11°C and morning low of 47°F8°C. Breezy from the SSE at 13 to 14 mph21 to 23 km/h. 10% chance of drizzle in the afternoon. Dry air. Saturday Night: Mostly cloudy, with a low around 46°F8°C. Breezy from the SSE at 11 to 13 mph18 to 21 km/h. 11% chance of drizzle in the evening.
Partly CloudyHigh 53°F12°CLow 38°F3°CFeels 33°F1°CPrecip 0 in0.1 mm3%Cloud 46%Wind ESE 6 mph10 km/hSunday: Partly cloudy and mild, with a high of 53°F12°C and morning low of 38°F3°C. Breezy from the ESE at 6 to 7 mph9 to 11 km/h. Dry air. Sunday Night: Partly cloudy, with a low around 40°F4°C. Breezy from the ESE at 7 to 9 mph11 to 14 km/h.
Partly CloudyHigh 61°F16°CLow 41°F5°CFeels 38°F3°CPrecip 0 in0 mmCloud 46%Wind NNE 5 mph8 km/hMonday: Partly cloudy and mild, with a high of 61°F16°C and morning low of 41°F5°C. Light wind from the N around 5 mph9 km/h. Dry air. Monday Night: Partly cloudy, with a low around 41°F5°C. Light wind from the NE around 5 mph8 km/h.
ClearHigh 65°F18°CLow 46°F8°CFeels 43°F6°CPrecip 0 in0.1 mm3%Cloud 38%Wind NNE 7 mph11 km/hTuesday: Partly cloudy and mild, with a high of 65°F18°C and morning low of 46°F8°C. Breezy from the W at 7 to 8 mph12 to 13 km/h. Dry air. Tuesday Night: Partly cloudy, with a low around 47°F8°C. Breezy from the NE at 7 to 8 mph11 to 13 km/h.

15-Day Forecast

Day High Low Precip Cloud Cover Condition Wind
WednesdaySep 966°F19°C45°F7°C
Feels 42°F6°C
0 in0.1 mm· 10%59%DrizzleNNE 6 mph10 km/h
ThursdaySep 1068°F20°C47°F8°C0.01 in0.2 mm· 9%34%ClearNE 5 mph8 km/h
FridaySep 1163°F17°C50°F10°C0.01 in0.2 mm· 8%93%CloudySE 7 mph11 km/h
SaturdaySep 1251°F11°C46°F8°C
Feels 41°F5°C
0.02 in0.6 mm· 11%85%DrizzleSSE 12 mph20 km/h
SundaySep 1353°F12°C38°F3°C
Feels 33°F1°C
0 in0.1 mm· 3%46%Partly CloudyESE 6 mph10 km/h
MondaySep 1461°F16°C41°F5°C
Feels 38°F3°C
0 in0 mm· —46%Partly CloudyNNE 5 mph8 km/h
TuesdaySep 1565°F18°C46°F8°C
Feels 43°F6°C
0 in0.1 mm· 3%38%ClearNNE 7 mph11 km/h
WednesdaySep 1666°F19°C45°F7°C
Feels 41°F5°C
0 in0 mm· —21%ClearNE 8 mph13 km/h
ThursdaySep 1773°F23°C50°F10°C
Feels 47°F8°C
0 in0.1 mm· 4%30%ClearN 8 mph12 km/h
FridaySep 1871°F22°C50°F10°C0 in0.1 mm· 2%60%Partly CloudyENE 7 mph12 km/h
SaturdaySep 1971°F22°C54°F12°C0.05 in1.2 mm· 16%57%DrizzleENE 8 mph12 km/h
SundaySep 2070°F21°C54°F12°C0.11 in2.9 mm· 17%54%ShowersSSE 8 mph14 km/h
MondaySep 2168°F20°C52°F11°C0.07 in1.8 mm· 11%53%DrizzleESE 9 mph15 km/h
TuesdaySep 2269°F21°C52°F11°C0.09 in2.2 mm· 16%60%DrizzleNE 9 mph14 km/h
WednesdaySep 2370°F21°C54°F12°C0.16 in4 mm· 22%62%ShowersENE 9 mph14 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: 34.6514°S, 58.6407°W·Elevation: 25m·Timezone: America/Argentina/Buenos_Aires·Population: 107,786