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Castiglione d'Orcia: which weather forecast is most accurate

Data come from the province of Siena (reference capital: Siena), combined with nearby provinces weighted by distance. Over the last two weeks, 3BMeteo got it wrong least often in this area (75/100).

Earthquakes · Castiglione d'Orcia Air quality · Castiglione d'Orcia

No weather alerts today for Castiglione d'Orcia · Source: Italian Civil Protection Department

Most accurate in this area, last 2 weeks

3BMeteo

There is no clear winner at the province level
Data updated on 12 October 2026 at 14:48

Rain nearby, right now

The nearest rain core is less than 1 km north of the centre of Castiglione d'Orcia, with light intensity.

Observed data from the latest radar sweep (09:50) · Radar-DPC, Italian Civil Protection

Yesterday in Siena

Observed data for 11 October
25°
High
11°
Low
No rain

The reference provincial capital for Castiglione d'Orcia is Siena

How we calculate the score

Every day we compare the forecasts of 5 weather services with data measured in the provincial capitals. The score runs from 0 to 100 and covers the last 14 days: 75% is about forecasting rain and 25% about temperature. Castiglione d'Orcia is not a measuring point: the score combines data from 8 provinces, weighted by distance.

How we measure accuracy
How much each province counts

For this town the score combines data from 8 provinces, weighted by geographic distance.

Provinces considered:

SI66%GR14%AR4%TR4%VT4%+3 more

Weather service ranking for this area

  1. 1
    3BMeteo
    75/100
    3bmeteo.com(opens in a new tab)
  2. 2
    Meteo.it
    73/100
    meteo.it(opens in a new tab)
  3. 3
    Apple Weather
    64/100
    No public website
  4. 4
    Meteo Aeronautica Militare
    62/100
    meteoam.it(opens in a new tab)
  5. 5
    iLMeteo.it
    55/100
    ilmeteo.it(opens in a new tab)

Yesterday's report card

11 October

Forecasts made the day before for Siena, compared with what actually happened

Meteo.itWinner of the day
  • Meteo.it
    Highspot onLowspot onRaincorrect
  • iLMeteo.it
    HighoffLowspot onRaincorrect
  • 3BMeteo
    HighcloseLowspot onRaincorrect
  • Meteo Aeronautica Militare
    HighcloseLowspot onRaincorrect
  • Apple Weather
    HighcloseLowspot onRaincorrect

Spot on = within 2 degrees · Close = within 4 degrees

Ongoing streaks

  • Meteo.it has called the rain right for 39 days in a row
  • Meteo.it has nailed the low for 5 days in a row
  • 3BMeteo has called the rain right for 4 days in a row

The situation around Castiglione d'Orcia

Rain on a good share of the days around Siena over the last seven days. 3BMeteo tops the 14-day ranking for the Castiglione d'Orcia area, but by a minimal margin of under 3 points over the second-placed service. On temperatures alone, however, Meteo.it is more accurate in the provincial capital's data. Gentle breezes, with no notable gusts. On yesterday's report card for the provincial capital, the service ranked No. 2 over the week finished No. 1. In nearby municipalities (Seggiano, San Quirico d'Orcia) the leading service does not change. One more note: yesterday the service ranked last overall was among the two most accurate on the provincial capital's report card.

Updated on 13 October 2026

Sun and moon today

07:24
Sunrise
18:34
Sunset
11h 11m
Daylight

3 fewer minutes of daylight than yesterday

Waxing crescent, 5% illuminated

Map of Castiglione d'Orcia

Loading map…

Nearby towns

Seggiano
7.2 km
San Quirico d'Orcia
9.2 km
Pienza
10.3 km
Castel del Piano
11.2 km

Get to know Castiglione d'Orcia

Over the last two months, next-day forecasts for the Siena area had an average accuracy index of 70 out of 100 (average across all services). It is among the hardest areas to forecast in Italy: ranked 54 of 107.

Average accuracy by how far ahead the forecast is made:

  • For tomorrow
    70/100 · very reliable
  • 2 days ahead
    69/100 · fairly reliable
  • 5 days ahead
    65/100 · fairly reliable
2,453
Inhabitants
052007
ISTAT code
Siena (SI) • Tuscany