Current Conditions

Osan, Gyeonggi-do

73°F23°C
Partly Cloudy

Wind

NW 3 mph5 km/h

Humidity

95%

Cloud Cover

54%

As of Wednesday, September 2, 2026 at 11:47 PM GMT+9

Today's Outlook

Night

Mostly cloudy, with a low around 72°F22°C. Light wind from the NNE around 4 mph6 km/h.

7-Day Forecast

DayConditionHigh (°F)Low (°F)Precip (mm)Cloud Cover (%)Wind (mph)
Partly CloudyHigh 88°F31°CFeels 92°F33°CLow 70°F21°CPrecip 0 in0.1 mm2%Cloud 49%Wind NE 4 mph6 km/hThursday: Partly cloudy and hot, with a high of 88°F31°C and morning low of 70°F21°C. Light wind from the NE around 4 mph6 km/h. Heavy, humid air. Thursday Night: Mostly cloudy, with a low around 72°F22°C. Light wind from the NNE around 4 mph6 km/h.
ClearHigh 87°F30°CLow 71°F22°CPrecip 0 in0 mmCloud 17%Wind E 8 mph13 km/hFriday: Mostly clear and hot, with a high of 87°F30°C and morning low of 71°F22°C. Breezy from the E at 9 mph14 km/h. Friday Night: Mostly clear, with a low around 73°F23°C. Breezy from the E at 8 to 9 mph13 to 14 km/h.
ClearHigh 84°F29°CLow 67°F19°CPrecip 0.02 in0.5 mm4%Cloud 24%Wind ENE 9 mph14 km/hSaturday: Partly cloudy and warm, with a high of 84°F29°C and morning low of 67°F19°C. Breezy from the ENE at 9 to 10 mph14 to 17 km/h. Saturday Night: Mostly clear, with a low around 69°F20°C. Breezy from the ENE at 8 to 9 mph13 to 15 km/h.
ClearHigh 84°F29°CLow 67°F19°CPrecip 0 in0 mmCloud 19%Wind ENE 8 mph13 km/hSunday: Mostly clear and warm, with a high of 84°F29°C and morning low of 67°F19°C. Breezy from the ENE at 9 to 10 mph14 to 16 km/h. Sunday Night: Mostly clear, with a low around 68°F20°C. Breezy from the ENE at 8 to 9 mph13 to 14 km/h.
ClearHigh 84°F29°CLow 65°F19°CPrecip 0 in0 mmCloud 10%Wind NE 6 mph10 km/hMonday: Mostly clear and warm, with a high of 84°F29°C and morning low of 65°F19°C. Light wind from the NE around 6 mph10 km/h. Monday Night: Mostly clear, with a low around 67°F20°C. Breezy from the NE at 6 to 7 mph10 to 12 km/h.
ClearHigh 84°F29°CLow 64°F18°CPrecip 0 in0.1 mm3%Cloud 25%Wind ENE 5 mph9 km/hTuesday: Mostly clear and warm, with a high of 84°F29°C and morning low of 64°F18°C. Light wind from the E around 5 mph9 km/h. Tuesday Night: Partly cloudy, with a low around 66°F19°C. Light wind from the ENE around 5 mph9 km/h.
DrizzleHigh 81°F27°CLow 68°F20°CPrecip 0.03 in0.8 mm10%Cloud 55%Wind ENE 7 mph11 km/hWednesday: Mostly cloudy and warm, with a high of 81°F27°C and morning low of 68°F20°C. Light wind from the E around 6 mph10 km/h. 10% chance of drizzle in the afternoon. Wednesday Night: Mostly cloudy, with a low around 70°F21°C. Breezy from the ENE at 7 mph11 km/h.

15-Day Forecast

Day High Low Precip Cloud Cover Condition Wind
ThursdaySep 388°F31°C
Feels 92°F33°C
70°F21°C0 in0.1 mm· 2%49%Partly CloudyNE 4 mph6 km/h
FridaySep 487°F30°C71°F22°C0 in0 mm· —17%ClearE 8 mph13 km/h
SaturdaySep 584°F29°C67°F19°C0.02 in0.5 mm· 4%24%ClearENE 9 mph14 km/h
SundaySep 684°F29°C67°F19°C0 in0 mm· —19%ClearENE 8 mph13 km/h
MondaySep 784°F29°C65°F19°C0 in0 mm· —10%ClearNE 6 mph10 km/h
TuesdaySep 884°F29°C64°F18°C0 in0.1 mm· 3%25%ClearENE 5 mph9 km/h
WednesdaySep 981°F27°C68°F20°C0.03 in0.8 mm· 10%55%DrizzleENE 7 mph11 km/h
ThursdaySep 1076°F24°C67°F20°C0.12 in3 mm· 25%71%DrizzleENE 7 mph11 km/h
FridaySep 1176°F24°C65°F18°C0.23 in5.8 mm· 27%76%Light RainENE 6 mph9 km/h
SaturdaySep 1277°F25°C65°F18°C0.31 in7.9 mm· 27%76%Light RainENE 5 mph8 km/h
SundaySep 1377°F25°C65°F18°C0.26 in6.5 mm· 27%74%Light RainENE 4 mph7 km/h
MondaySep 1477°F25°C64°F18°C0.31 in7.9 mm· 26%66%ShowersNE 4 mph7 km/h
TuesdaySep 1578°F26°C63°F17°C0.22 in5.6 mm· 22%59%ShowersNE 4 mph7 km/h
WednesdaySep 1679°F26°C62°F17°C0.11 in2.8 mm· 14%54%ShowersNE 4 mph7 km/h
ThursdaySep 1779°F26°C62°F17°C0.11 in2.7 mm· 13%52%ShowersNNE 4 mph7 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: 37.1522°N, 127.0706°E·Elevation: 22m·Timezone: Asia/Seoul·Population: 238,788