Piansano
Yellow alert today for thunderstorms
Source: Italian Civil Protection Department · 25 August
Today, the most reliable forecast for Piansano is
iLMeteo.it
At the province level
Rain nearby, right now
The nearest rain core is less than 1 km north of the centre of Piansano, with light intensity. It is moving north-east at about 41 km/h.
Observed data from the latest radar sweep (09:40) · Radar-DPC, Italian Civil Protection
Yesterday in Viterbo
Observed data for 23 AugustThe reference provincial capital for Piansano is Viterbo
Why trust this recommendation?
Every day we compare the forecasts of 5 weather services against the actual weather in Piansano. iLMeteo.it gets it wrong less often than the others: over the latest period it got 6 out of 10 forecasts right.
Weather service ranking
Most accurate yesterday
iLMeteo.it nailed it.
Most reliable this week
iLMeteo.it was the most accurate.
Yesterday's report card
23 AugustForecasts made the day before for Viterbo, compared with what actually happened
- Meteo Aeronautica MilitareHighspot onLowspot onRaincorrect
- 3BMeteoHighspot onLowspot onRaincorrect
- Apple WeatherHighcloseLowspot onRaincorrect
- Meteo.itHighspot onLowspot onRaincorrect
- iLMeteo.itHighoffLowcloseRaincorrect
Spot on = within 2 degrees · Close = within 4 degrees
Ongoing streaks
- 3BMeteo has nailed the high for 19 days in a row
- Meteo Aeronautica Militare has nailed the high for 14 days in a row
- Apple Weather has nailed the low for 4 days in a row
The weather in Piansano
An umbrella was essential in Piansano. A battle down to the last decimal: iLMeteo.it is first, with 3BMeteo all but level. If you're keen on knowing the exact temperatures, Meteo Aeronautica Militare is the best. A strong wind blew for much of the week. No surprises in the surrounding area: iLMeteo.it wins in Capodimonte and Arlena di Castro too.
Updated on 25 August 2026
Sun and moon today
3 fewer minutes of daylight than yesterday
Waxing gibbous, 93% illuminated
Map of Piansano
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Nearby towns
How was this calculated?
The score is calculated by interpolating data from 8 nearby provinces, weighted by geographic distance.
Provinces considered:
Localities in Piansano
Get to know Piansano
How predictable is the weather around here? Over the last two months, forecasts for the Viterbo area were right 73% of the time on average. It is the 11th most predictable area in Italy out of 107.
How much to trust forecasts, depending on how far ahead they are:
- For tomorrow73% · almost always right
- 2 days ahead73% · almost always right
- 5 days ahead68% · fairly reliable
How does it work? Every day we collect weather forecasts and compare them against real data to determine which service is most reliable for Piansano.