Current Conditions

Siena, Tuscany

70°F21°C

Showers

Wind

SE 3 mph4 km/h

Humidity

88%

Cloud Cover

64%

As of Wednesday, September 9, 2026 at 7:27 AM GMT+2

Today's Outlook

Day

Mostly cloudy and hot, with a high of 86°F30°C and morning low of 70°F21°C. Breezy from the SSW at 6 to 8 mph9 to 12 km/h. 59% chance of light rain in the afternoon. Humid.

Night

Mostly cloudy, with a low around 69°F21°C. Light wind from the S around 3 mph5 km/h. 39% chance of showers in the evening.

7-Day Forecast

Condition	High (°F)	Low (°F)	Precip (mm)	Cloud Cover (%)	Wind (mph)
Showers	High 86°F30°CFeels 89°F31°C	Low 69°F21°C	Precip 0.13 in3.4 mm59%	Cloud 64%	Wind SSW 4 mph7 km/h	Wednesday: Mostly cloudy and hot, with a high of 86°F30°C and morning low of 70°F21°C. Breezy from the SSW at 6 to 8 mph9 to 12 km/h. 59% chance of light rain in the afternoon. Humid. Wednesday Night: Mostly cloudy, with a low around 69°F21°C. Light wind from the S around 3 mph5 km/h. 39% chance of showers in the evening.
Rain	High 74°F23°C	Low 68°F20°C	Precip 1.35 in34.4 mm94%	Cloud 91%	Wind SE 5 mph7 km/h	Thursday: Overcast and warm, with a high of 74°F23°C and morning low of 68°F20°C. Light wind from the SSE around 6 mph9 km/h. 94% chance of rain throughout the day. Humid. Thursday Night: Overcast, with a low around 68°F20°C. Light wind from the SE around 3 mph6 km/h. 93% chance of rain throughout the night.
Showers	High 77°F25°C	Low 65°F18°C	Precip 0.2 in5.2 mm43%	Cloud 58%	Wind WNW 3 mph6 km/h	Friday: Mostly cloudy and warm, with a high of 77°F25°C and morning low of 65°F18°C. Light wind from the W around 4 mph7 km/h. 35% chance of showers throughout the day. Friday Night: Mostly cloudy, with a low around 65°F18°C. Light wind from the NNW around 3 mph4 km/h. 43% chance of showers throughout the night.
Showers	High 78°F25°C	Low 63°F17°C	Precip 0.04 in1 mm33%	Cloud 42%	Wind NE 5 mph8 km/h	Saturday: Partly cloudy and warm, with a high of 78°F25°C and morning low of 64°F18°C. Breezy from the NE at 6 to 7 mph10 to 12 km/h. 33% chance of showers in the afternoon. Saturday Night: Partly cloudy, with a low around 63°F17°C. Light wind from the NE around 4 mph6 km/h.
Clear	High 78°F25°C	Low 59°F15°C	Precip 0 in0.1 mm3%	Cloud 18%	Wind NNE 6 mph9 km/h	Sunday: Mostly clear and warm, with a high of 78°F25°C and morning low of 60°F15°C. Breezy from the NE at 7 to 8 mph11 to 13 km/h. Sunday Night: Mostly clear, with a low around 59°F15°C. Light wind from the NNE around 4 mph7 km/h.
Clear	High 78°F25°C	Low 59°F15°C	Precip 0.01 in0.2 mm4%	Cloud 31%	Wind NE 6 mph9 km/h	Monday: Partly cloudy and warm, with a high of 78°F25°C and morning low of 59°F15°C. Breezy from the NE at 7 to 9 mph11 to 14 km/h. Monday Night: Partly cloudy, with a low around 59°F15°C. Light wind from the NNE around 4 mph7 km/h.
Clear	High 79°F26°C	Low 60°F15°C	Precip 0 in0.1 mm3%	Cloud 17%	Wind NNE 5 mph8 km/h	Tuesday: Mostly clear and warm, with a high of 79°F26°C and morning low of 60°F16°C. Breezy from the NNE at 6 to 7 mph10 to 11 km/h. Tuesday Night: Mostly clear, with a low around 60°F15°C. Light wind from the NNE around 4 mph6 km/h.

15-Day Forecast

	Day	High	Low	Precip	Cloud Cover	Condition	Wind
	WednesdaySep 9	86°F30°C Feels 89°F31°C	69°F21°C	0.13 in3.4 mm· 59%	64%	Showers	SSW 4 mph7 km/h
DayMostly cloudy and hot, with a high of 86°F30°C and morning low of 70°F21°C. Breezy from the SSW at 6 to 8 mph9 to 12 km/h. 59% chance of light rain in the afternoon. Humid. NightMostly cloudy, with a low around 69°F21°C. Light wind from the S around 3 mph5 km/h. 39% chance of showers in the evening.
	ThursdaySep 10	74°F23°C	68°F20°C	1.35 in34.4 mm· 94%	91%	Rain	SE 5 mph7 km/h
DayOvercast and warm, with a high of 74°F23°C and morning low of 68°F20°C. Light wind from the SSE around 6 mph9 km/h. 94% chance of rain throughout the day. Humid. NightOvercast, with a low around 68°F20°C. Light wind from the SE around 3 mph6 km/h. 93% chance of rain throughout the night.
	FridaySep 11	77°F25°C	65°F18°C	0.2 in5.2 mm· 43%	58%	Showers	WNW 3 mph6 km/h
DayMostly cloudy and warm, with a high of 77°F25°C and morning low of 65°F18°C. Light wind from the W around 4 mph7 km/h. 35% chance of showers throughout the day. NightMostly cloudy, with a low around 65°F18°C. Light wind from the NNW around 3 mph4 km/h. 43% chance of showers throughout the night.
	SaturdaySep 12	78°F25°C	63°F17°C	0.04 in1 mm· 33%	42%	Showers	NE 5 mph8 km/h
DayPartly cloudy and warm, with a high of 78°F25°C and morning low of 64°F18°C. Breezy from the NE at 6 to 7 mph10 to 12 km/h. 33% chance of showers in the afternoon. NightPartly cloudy, with a low around 63°F17°C. Light wind from the NE around 4 mph6 km/h.
	SundaySep 13	78°F25°C	59°F15°C	0 in0.1 mm· 3%	18%	Clear	NNE 6 mph9 km/h
DayMostly clear and warm, with a high of 78°F25°C and morning low of 60°F15°C. Breezy from the NE at 7 to 8 mph11 to 13 km/h. NightMostly clear, with a low around 59°F15°C. Light wind from the NNE around 4 mph7 km/h.
	MondaySep 14	78°F25°C	59°F15°C	0.01 in0.2 mm· 4%	31%	Clear	NE 6 mph9 km/h
DayPartly cloudy and warm, with a high of 78°F25°C and morning low of 59°F15°C. Breezy from the NE at 7 to 9 mph11 to 14 km/h. NightPartly cloudy, with a low around 59°F15°C. Light wind from the NNE around 4 mph7 km/h.
	TuesdaySep 15	79°F26°C	60°F15°C	0 in0.1 mm· 3%	17%	Clear	NNE 5 mph8 km/h
DayMostly clear and warm, with a high of 79°F26°C and morning low of 60°F16°C. Breezy from the NNE at 6 to 7 mph10 to 11 km/h. NightMostly clear, with a low around 60°F15°C. Light wind from the NNE around 4 mph6 km/h.
	WednesdaySep 16	80°F26°C	59°F15°C	0.02 in0.5 mm· 11%	28%	Drizzle	NW 3 mph5 km/h
DayPartly cloudy and warm, with a high of 80°F26°C and morning low of 59°F15°C. Light wind from the NW around 4 mph6 km/h. 11% chance of drizzle in the afternoon. NightPartly cloudy, with a low around 59°F15°C. Light wind from the N around 3 mph5 km/h.
	ThursdaySep 17	75°F24°C	61°F16°C	0.28 in7.2 mm· 51%	60%	Showers	E 4 mph7 km/h
DayMostly cloudy and warm, with a high of 75°F24°C and morning low of 62°F16°C. Light wind from the E around 5 mph8 km/h. 51% chance of showers throughout the day. NightMostly cloudy, with a low around 61°F16°C. Light wind from the E around 4 mph6 km/h. 39% chance of showers throughout the night.
	FridaySep 18	74°F23°C	60°F16°C	0.27 in6.8 mm· 43%	59%	Showers	E 5 mph8 km/h
DayMostly cloudy and warm, with a high of 74°F23°C and morning low of 60°F16°C. Light wind from the E around 6 mph9 km/h. 43% chance of showers throughout the day. NightMostly cloudy, with a low around 60°F16°C. Light wind from the ENE around 4 mph6 km/h. 37% chance of showers throughout the night.
	SaturdaySep 19	74°F24°C	60°F15°C	0.15 in3.9 mm· 36%	48%	Showers	ENE 4 mph7 km/h
DayMostly cloudy and warm, with a high of 74°F24°C and morning low of 60°F15°C. Light wind from the ENE around 5 mph8 km/h. 36% chance of showers throughout the day. NightPartly cloudy, with a low around 60°F15°C. Light wind from the ENE around 4 mph6 km/h. 23% chance of drizzle throughout the night.
	SundaySep 20	75°F24°C	59°F15°C	0.1 in2.6 mm· 30%	42%	Showers	NE 4 mph7 km/h
DayPartly cloudy and warm, with a high of 75°F24°C and morning low of 60°F15°C. Light wind from the NE around 5 mph8 km/h. 30% chance of showers throughout the day. NightPartly cloudy, with a low around 59°F15°C. Light wind from the NE around 4 mph6 km/h. 21% chance of showers throughout the night.
	MondaySep 21	75°F24°C	59°F15°C	0.09 in2.4 mm· 26%	41%	Showers	NE 5 mph8 km/h
DayPartly cloudy and warm, with a high of 75°F24°C and morning low of 59°F15°C. Light wind from the NE around 5 mph9 km/h. 26% chance of showers throughout the day. NightPartly cloudy, with a low around 59°F15°C. Light wind from the NE around 4 mph6 km/h. 18% chance of drizzle throughout the night.
	TuesdaySep 22	75°F24°C	59°F15°C	0.07 in1.9 mm· 29%	41%	Showers	NE 5 mph8 km/h
DayPartly cloudy and warm, with a high of 75°F24°C and morning low of 59°F15°C. Light wind from the NE around 6 mph9 km/h. 29% chance of showers throughout the day. NightPartly cloudy, with a low around 59°F15°C. Light wind from the NE around 4 mph7 km/h. 15% chance of drizzle throughout the night.
	WednesdaySep 23	75°F24°C	59°F15°C	0.08 in2 mm· 28%	45%	Showers	ENE 5 mph8 km/h
DayPartly cloudy and warm, with a high of 75°F24°C and morning low of 59°F15°C. Breezy from the ENE at 6 to 7 mph10 to 11 km/h. 28% chance of showers throughout the day. NightPartly cloudy, with a low around 59°F15°C. Light wind from the NE around 4 mph7 km/h. 17% chance of drizzle throughout the night.

Nearby Cities

Colle di Val d'Elsa12 mi20 km Poggibonsi14 mi22 km Montevarchi19 mi30 km San Giovanni Valdarno20 mi32 km Arezzo29 mi47 km Scandicci31 mi50 km

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

Pattern	Example	Description
/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=11.5	Find 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: 43.3182°N, 11.3306°E·Elevation: 322m·Timezone: Europe/Rome·Population: 53,901