Current Conditions

Sliven, Sliven

59°F15°C
Clear

Wind

E 3 mph4 km/h

Humidity

76%

Cloud Cover

0%

As of Tuesday, September 8, 2026 at 10:39 PM GMT+3

Today's Outlook

Night

Mostly clear, with a low around 56°F13°C. Breezy from the ESE at 5 to 8 mph7 to 13 km/h.

7-Day Forecast

DayConditionHigh (°F)Low (°F)Precip (mm)Cloud Cover (%)Wind (mph)
ClearHigh 79°F26°CLow 54°F12°CPrecip 0 in0 mmCloud 1%Wind ESE 4 mph6 km/hWednesday: Mostly clear and warm, with a high of 79°F26°C and morning low of 54°F12°C. Light wind from the SE around 3 mph6 km/h. Wednesday Night: Mostly clear, with a low around 56°F13°C. Breezy from the ESE at 5 to 8 mph7 to 13 km/h.
ClearHigh 84°F29°CLow 56°F13°CPrecip 0 in0 mmCloud 2%Wind ESE 3 mph4 km/hThursday: Mostly clear and warm, with a high of 83°F28°C and morning low of 56°F13°C. Light wind from the ESE around 2 mph3 km/h. Thursday Night: Mostly clear, with a low around 58°F14°C. Light wind from the E around 3 mph6 km/h.
ClearHigh 85°F29°CLow 60°F16°CPrecip 0 in0 mmCloud 5%Wind ESE 4 mph6 km/hFriday: Mostly clear and warm, with a high of 85°F29°C and morning low of 60°F16°C. Light wind from the ESE around 3 mph6 km/h. Friday Night: Mostly clear, with a low around 61°F16°C. Breezy from the E at 4 to 8 mph7 to 12 km/h.
ClearHigh 85°F29°CLow 60°F16°CPrecip 0 in0 mmCloud 24%Wind E 3 mph5 km/hSaturday: Mostly clear and warm, with a high of 85°F29°C and morning low of 60°F16°C. Light wind from the ESE around 3 mph5 km/h. Saturday Night: Partly cloudy, with a low around 62°F17°C. Light wind from the E around 4 mph6 km/h.
DrizzleHigh 78°F26°CLow 61°F16°CPrecip 0.05 in1.3 mm16%Cloud 53%Wind NE 5 mph7 km/hSunday: Mostly cloudy and warm, with a high of 78°F26°C and morning low of 61°F16°C. Light wind from the NE around 5 mph7 km/h. 12% chance of drizzle throughout the day. Sunday Night: Mostly cloudy, with a low around 63°F17°C. Breezy from the ENE at 5 to 7 mph8 to 12 km/h. 16% chance of drizzle in the evening.
Light RainHigh 74°F23°CLow 62°F17°CPrecip 0.15 in3.9 mm33%Cloud 77%Wind NE 5 mph8 km/hMonday: Overcast and warm, with a high of 74°F23°C and morning low of 62°F17°C. Light wind from the ENE around 5 mph8 km/h. 33% chance of drizzle throughout the day. Monday Night: Mostly cloudy, with a low around 63°F17°C. Light wind from the NE around 5 mph8 km/h. 33% chance of light rain throughout the night.
Light RainHigh 74°F23°CLow 61°F16°CPrecip 0.15 in3.7 mm35%Cloud 75%Wind NNE 5 mph8 km/hTuesday: Mostly cloudy and warm, with a high of 74°F23°C and morning low of 61°F16°C. Light wind from the NNE around 5 mph8 km/h. 33% chance of drizzle throughout the day. Tuesday Night: Mostly cloudy, with a low around 62°F17°C. Light wind from the NE around 5 mph8 km/h. 35% chance of light rain throughout the night.

15-Day Forecast

Day High Low Precip Cloud Cover Condition Wind
WednesdaySep 979°F26°C54°F12°C0 in0 mm· —1%ClearESE 4 mph6 km/h
ThursdaySep 1084°F29°C56°F13°C0 in0 mm· —2%ClearESE 3 mph4 km/h
FridaySep 1185°F29°C60°F16°C0 in0 mm· —5%ClearESE 4 mph6 km/h
SaturdaySep 1285°F29°C60°F16°C0 in0 mm· —24%ClearE 3 mph5 km/h
SundaySep 1378°F26°C61°F16°C0.05 in1.3 mm· 16%53%DrizzleNE 5 mph7 km/h
MondaySep 1474°F23°C62°F17°C0.15 in3.9 mm· 33%77%Light RainNE 5 mph8 km/h
TuesdaySep 1574°F23°C61°F16°C0.15 in3.7 mm· 35%75%Light RainNNE 5 mph8 km/h
WednesdaySep 1674°F23°C61°F16°C0.19 in4.7 mm· 45%74%Light RainNE 5 mph8 km/h
ThursdaySep 1775°F24°C60°F16°C0.17 in4.4 mm· 36%58%ShowersN 4 mph7 km/h
FridaySep 1877°F25°C59°F15°C0.06 in1.4 mm· 21%43%DrizzleNW 4 mph7 km/h
SaturdaySep 1977°F25°C59°F15°C0.06 in1.6 mm· 19%39%DrizzleE 4 mph7 km/h
SundaySep 2076°F25°C59°F15°C0.06 in1.4 mm· 21%42%DrizzleNE 4 mph7 km/h
MondaySep 2175°F24°C58°F14°C0.07 in1.8 mm· 19%46%DrizzleNE 5 mph7 km/h
TuesdaySep 2274°F23°C57°F14°C0.06 in1.5 mm· 18%48%DrizzleNE 5 mph8 km/h
WednesdaySep 2374°F23°C57°F14°C0.08 in2 mm· 17%48%DrizzleNE 5 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: 42.6861°N, 26.3256°E·Elevation: 281m·Timezone: Europe/Sofia·Population: 83,740