Current Conditions
Castelo do Piauí, Piauí
Wind
E 16 mph25 km/h
Humidity
42%
Cloud Cover
1%
As of Tuesday, October 13, 2026 at 10:25 AM GMT-3
Today's Outlook
Day
Mostly clear and hot, with a high of 100°F38°C and morning low of 81°F27°C. Windy from the E at 14 to 16 mph22 to 27 km/h. Heat risk in the afternoon.
Night
Mostly clear, with a low around 78°F26°C. Breezy from the E at 10 to 12 mph17 to 20 km/h.
7-Day Forecast
| Day | Condition | High (°F) | Low (°F) | Precip (mm) | Cloud Cover (%) | Wind (mph) | |
|---|---|---|---|---|---|---|---|
| Hot | High 100°F38°C | Low 78°F26°C | Precip 0 in0 mm— | Cloud 7% | Wind E 12 mph20 km/h | Tuesday: Mostly clear and hot, with a high of 100°F38°C and morning low of 81°F27°C. Windy from the E at 14 to 16 mph22 to 27 km/h. Heat risk in the afternoon. Tuesday Night: Mostly clear, with a low around 78°F26°C. Breezy from the E at 10 to 12 mph17 to 20 km/h. | |
| Hot | High 101°F39°C | Low 78°F26°C | Precip 0 in0 mm— | Cloud 25% | Wind ENE 10 mph17 km/h | Wednesday: Partly cloudy and hot, with a high of 101°F39°C and morning low of 82°F28°C. Breezy from the E at 11 to 14 mph18 to 23 km/h. Heat risk in the afternoon. Wednesday Night: Mostly clear, with a low around 78°F26°C. Breezy from the ENE at 10 to 13 mph16 to 21 km/h. | |
| Hot | High 100°F38°C | Low 78°F26°C | Precip 0 in0 mm— | Cloud 34% | Wind ENE 8 mph13 km/h | Thursday: Partly cloudy and hot, with a high of 100°F38°C and morning low of 82°F28°C. Breezy from the ENE at 9 to 11 mph14 to 18 km/h. Heat risk in the afternoon. Thursday Night: Partly cloudy, with a low around 78°F26°C. Breezy from the NE at 8 to 10 mph13 to 15 km/h. | |
| Hot | High 100°F38°C | Low 80°F27°C | Precip 0 in0 mm— | Cloud 28% | Wind E 7 mph12 km/h | Friday: Partly cloudy and hot, with a high of 100°F38°C and morning low of 84°F29°C. Breezy from the ESE at 8 to 10 mph13 to 15 km/h. Heat risk in the afternoon. Friday Night: Partly cloudy, with a low around 80°F27°C. Breezy from the ENE at 7 to 8 mph11 to 12 km/h. | |
| Hot | High 99°F37°C | Low 81°F27°C | Precip 0 in0 mm— | Cloud 27% | Wind ENE 10 mph17 km/h | Saturday: Partly cloudy and hot, with a high of 99°F37°C and morning low of 84°F29°C. Breezy from the E at 12 to 14 mph19 to 23 km/h. Heat risk in the afternoon. Saturday Night: Mostly clear, with a low around 81°F27°C. Breezy from the ENE at 9 to 11 mph15 to 18 km/h. | |
| Hot | High 98°F37°C | Low 79°F26°C | Precip 0 in0 mm— | Cloud 32% | Wind E 9 mph14 km/h | Sunday: Partly cloudy and hot, with a high of 98°F37°C and morning low of 83°F28°C. Breezy from the E at 10 to 11 mph15 to 18 km/h. Heat risk in the afternoon. Sunday Night: Partly cloudy, with a low around 79°F26°C. Breezy from the ENE at 8 to 10 mph13 to 16 km/h. | |
| Hot | High 98°F37°C | Low 80°F27°C | Precip 0 in0 mm— | Cloud 48% | Wind E 8 mph13 km/h | Monday: Mostly cloudy and hot, with a high of 98°F37°C and morning low of 83°F29°C. Breezy from the E at 8 to 9 mph14 to 15 km/h. Heat risk in the afternoon. Monday Night: Partly cloudy, with a low around 80°F27°C. Breezy from the E at 8 mph12 km/h. |
15-Day Forecast
| Day | High | Low | Precip | Cloud Cover | Condition | Wind | |
|---|---|---|---|---|---|---|---|
| TuesdayOct 13 | 100°F38°C | 78°F26°C | 0 in0 mm· — | 7% | Hot | E 12 mph20 km/h | |
DayMostly clear and hot, with a high of 100°F38°C and morning low of 81°F27°C. Windy from the E at 14 to 16 mph22 to 27 km/h. Heat risk in the afternoon. NightMostly clear, with a low around 78°F26°C. Breezy from the E at 10 to 12 mph17 to 20 km/h. | |||||||
| WednesdayOct 14 | 101°F39°C | 78°F26°C | 0 in0 mm· — | 25% | Hot | ENE 10 mph17 km/h | |
DayPartly cloudy and hot, with a high of 101°F39°C and morning low of 82°F28°C. Breezy from the E at 11 to 14 mph18 to 23 km/h. Heat risk in the afternoon. NightMostly clear, with a low around 78°F26°C. Breezy from the ENE at 10 to 13 mph16 to 21 km/h. | |||||||
| ThursdayOct 15 | 100°F38°C | 78°F26°C | 0 in0 mm· — | 34% | Hot | ENE 8 mph13 km/h | |
DayPartly cloudy and hot, with a high of 100°F38°C and morning low of 82°F28°C. Breezy from the ENE at 9 to 11 mph14 to 18 km/h. Heat risk in the afternoon. NightPartly cloudy, with a low around 78°F26°C. Breezy from the NE at 8 to 10 mph13 to 15 km/h. | |||||||
| FridayOct 16 | 100°F38°C | 80°F27°C | 0 in0 mm· — | 28% | Hot | E 7 mph12 km/h | |
DayPartly cloudy and hot, with a high of 100°F38°C and morning low of 84°F29°C. Breezy from the ESE at 8 to 10 mph13 to 15 km/h. Heat risk in the afternoon. NightPartly cloudy, with a low around 80°F27°C. Breezy from the ENE at 7 to 8 mph11 to 12 km/h. | |||||||
| SaturdayOct 17 | 99°F37°C | 81°F27°C | 0 in0 mm· — | 27% | Hot | ENE 10 mph17 km/h | |
DayPartly cloudy and hot, with a high of 99°F37°C and morning low of 84°F29°C. Breezy from the E at 12 to 14 mph19 to 23 km/h. Heat risk in the afternoon. NightMostly clear, with a low around 81°F27°C. Breezy from the ENE at 9 to 11 mph15 to 18 km/h. | |||||||
| SundayOct 18 | 98°F37°C | 79°F26°C | 0 in0 mm· — | 32% | Hot | E 9 mph14 km/h | |
DayPartly cloudy and hot, with a high of 98°F37°C and morning low of 83°F28°C. Breezy from the E at 10 to 11 mph15 to 18 km/h. Heat risk in the afternoon. NightPartly cloudy, with a low around 79°F26°C. Breezy from the ENE at 8 to 10 mph13 to 16 km/h. | |||||||
| MondayOct 19 | 98°F37°C | 80°F27°C | 0 in0 mm· — | 48% | Hot | E 8 mph13 km/h | |
DayMostly cloudy and hot, with a high of 98°F37°C and morning low of 83°F29°C. Breezy from the E at 8 to 9 mph14 to 15 km/h. Heat risk in the afternoon. NightPartly cloudy, with a low around 80°F27°C. Breezy from the E at 8 mph12 km/h. | |||||||
| TuesdayOct 20 | 99°F37°C | 81°F27°C | 0 in0 mm· — | 25% | Hot | E 11 mph17 km/h | |
DayPartly cloudy and hot, with a high of 99°F37°C and morning low of 84°F29°C. Breezy from the E at 12 to 13 mph19 to 21 km/h. Heat risk in the afternoon. NightMostly clear, with a low around 81°F27°C. Breezy from the E at 9 to 11 mph15 to 17 km/h. | |||||||
| WednesdayOct 21 | 99°F37°C | 79°F26°C | 0 in0 mm· — | 13% | Hot | E 13 mph21 km/h | |
DayMostly clear and hot, with a high of 99°F37°C and morning low of 84°F29°C. Windy from the E at 15 to 16 mph24 to 26 km/h. Heat risk in the afternoon. NightMostly clear, with a low around 79°F26°C. Breezy from the E at 11 to 15 mph18 to 24 km/h. | |||||||
| ThursdayOct 22 | 99°F37°C | 80°F27°C | 0 in0 mm· — | 12% | Hot | E 13 mph20 km/h | |
DayMostly clear and hot, with a high of 99°F37°C and morning low of 84°F29°C. Windy from the E at 14 to 16 mph23 to 26 km/h. Heat risk in the afternoon. NightMostly clear, with a low around 80°F27°C. Breezy from the E at 11 to 14 mph18 to 23 km/h. | |||||||
| FridayOct 23 | 101°F38°C | 80°F27°C | 0 in0 mm· — | 12% | Hot | E 12 mph19 km/h | |
DayMostly clear and hot, with a high of 101°F38°C and morning low of 85°F29°C. Breezy from the E at 13 to 15 mph21 to 24 km/h. Heat risk in the afternoon. NightMostly clear, with a low around 80°F27°C. Breezy from the E at 11 to 14 mph17 to 22 km/h. | |||||||
| SaturdayOct 24 | 102°F39°C | 81°F27°C | 0 in0 mm· — | 18% | Hot | E 11 mph18 km/h | |
DayMostly clear and hot, with a high of 102°F39°C and morning low of 85°F30°C. Breezy from the E at 12 to 14 mph19 to 23 km/h. Heat risk in the afternoon. NightMostly clear, with a low around 81°F27°C. Breezy from the E at 10 to 13 mph16 to 20 km/h. | |||||||
| SundayOct 25 | 100°F38°C | 81°F27°C | 0 in0 mm· — | 30% | Hot | E 10 mph16 km/h | |
DayMostly clear and hot, with a high of 100°F38°C and morning low of 85°F29°C. Breezy from the E at 10 to 12 mph16 to 20 km/h. Heat risk in the afternoon. NightPartly cloudy, with a low around 81°F27°C. Breezy from the ENE at 9 to 11 mph15 to 18 km/h. | |||||||
| MondayOct 26 | 99°F37°C | 80°F27°C | 0 in0 mm· — | 35% | Hot | ENE 9 mph15 km/h | |
DayPartly cloudy and hot, with a high of 99°F37°C and morning low of 84°F29°C. Breezy from the E at 10 to 12 mph16 to 19 km/h. Heat risk in the afternoon. NightPartly cloudy, with a low around 80°F27°C. Breezy from the ENE at 9 to 10 mph14 to 16 km/h. | |||||||
| TuesdayOct 27 | 99°F37°C | 80°F27°C | 0 in0 mm· — | 37% | Hot | E 9 mph15 km/h | |
DayPartly cloudy and hot, with a high of 99°F37°C and morning low of 84°F29°C. Breezy from the E at 10 to 12 mph16 to 19 km/h. Heat risk in the afternoon. NightPartly cloudy, with a low around 80°F27°C. Breezy from the E at 8 to 10 mph13 to 15 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 →
Coordinates: 5.3222°S, 41.5525°W·Elevation: 241m·Timezone: America/Fortaleza·Population: 19,715