Current Conditions

Altos, Piauí

98°F37°C

Hot

Wind

ESE 7 mph11 km/h

Humidity

31%

Cloud Cover

32%

As of Tuesday, September 8, 2026 at 2:29 PM GMT-3

Today's Outlook

Day

Mostly clear and hot, with a high of 98°F37°C and morning low of 87°F31°C. Breezy from the ESE at 8 to 9 mph13 to 15 km/h. Heat risk in the afternoon.

Night

Partly cloudy, with a low around 85°F30°C. Light wind from the NE around 3 mph5 km/h.

7-Day Forecast

Condition	High (°F)	Low (°F)	Precip (mm)	Cloud Cover (%)	Wind (mph)
Hot	High 98°F37°C	Low 85°F30°C	Precip 0 in0 mm—	Cloud 29%	Wind ESE 6 mph10 km/h	Tuesday: Mostly clear and hot, with a high of 98°F37°C and morning low of 87°F31°C. Breezy from the ESE at 8 to 9 mph13 to 15 km/h. Heat risk in the afternoon. Tuesday Night: Partly cloudy, with a low around 85°F30°C. Light wind from the NE around 3 mph5 km/h.
Hot	High 99°F37°C	Low 75°F24°C	Precip 0 in0 mm—	Cloud 19%	Wind E 5 mph9 km/h	Wednesday: Mostly clear and hot, with a high of 99°F37°C and morning low of 75°F24°C. Breezy from the ESE at 7 to 9 mph11 to 15 km/h. Heat risk in the afternoon. Wednesday Night: Partly cloudy, with a low around 77°F25°C. Light wind from the N around 4 mph6 km/h.
Hot	High 98°F37°C	Low 76°F24°C	Precip 0 in0.1 mm1%	Cloud 27%	Wind E 7 mph11 km/h	Thursday: Mostly clear and hot, with a high of 98°F37°C and morning low of 76°F24°C. Breezy from the ESE at 8 to 11 mph13 to 17 km/h. Heat risk in the afternoon. Thursday Night: Partly cloudy, with a low around 77°F25°C. Light wind from the NE around 5 mph8 km/h.
Hot	High 99°F37°C	Low 76°F24°C	Precip 0 in0 mm—	Cloud 16%	Wind E 6 mph10 km/h	Friday: Mostly clear and hot, with a high of 99°F37°C and morning low of 76°F24°C. Breezy from the ESE at 7 to 10 mph12 to 16 km/h. Heat risk in the afternoon. Friday Night: Mostly clear, with a low around 79°F26°C. Light wind from the NE around 5 mph9 km/h.
Hot	High 100°F38°C	Low 75°F24°C	Precip 0 in0 mm—	Cloud 10%	Wind E 6 mph10 km/h	Saturday: Mostly clear and hot, with a high of 100°F38°C and morning low of 75°F24°C. Breezy from the E at 7 to 9 mph12 to 15 km/h. Heat risk in the afternoon. Saturday Night: Mostly clear, with a low around 77°F25°C. Breezy from the NE at 5 to 7 mph9 to 11 km/h.
Hot	High 100°F38°C	Low 75°F24°C	Precip 0 in0 mm—	Cloud 14%	Wind E 6 mph10 km/h	Sunday: Mostly clear and hot, with a high of 100°F38°C and morning low of 75°F24°C. Breezy from the ESE at 7 to 9 mph11 to 14 km/h. Heat risk in the afternoon. Sunday Night: Mostly clear, with a low around 78°F25°C. Light wind from the NE around 5 mph8 km/h.
Hot	High 100°F38°C	Low 74°F24°C	Precip 0 in0 mm—	Cloud 27%	Wind E 6 mph9 km/h	Monday: Partly cloudy and hot, with a high of 100°F38°C and morning low of 74°F24°C. Breezy from the ESE at 7 to 9 mph11 to 14 km/h. Heat risk in the afternoon. Monday Night: Mostly clear, with a low around 77°F25°C. Light wind from the N around 5 mph8 km/h.

15-Day Forecast

	Day	High	Low	Precip	Cloud Cover	Condition	Wind
	TuesdaySep 8	98°F37°C	85°F30°C	0 in0 mm· —	29%	Hot	ESE 6 mph10 km/h
DayMostly clear and hot, with a high of 98°F37°C and morning low of 87°F31°C. Breezy from the ESE at 8 to 9 mph13 to 15 km/h. Heat risk in the afternoon. NightPartly cloudy, with a low around 85°F30°C. Light wind from the NE around 3 mph5 km/h.
	WednesdaySep 9	99°F37°C	75°F24°C	0 in0 mm· —	19%	Hot	E 5 mph9 km/h
DayMostly clear and hot, with a high of 99°F37°C and morning low of 75°F24°C. Breezy from the ESE at 7 to 9 mph11 to 15 km/h. Heat risk in the afternoon. NightPartly cloudy, with a low around 77°F25°C. Light wind from the N around 4 mph6 km/h.
	ThursdaySep 10	98°F37°C	76°F24°C	0 in0.1 mm· 1%	27%	Hot	E 7 mph11 km/h
DayMostly clear and hot, with a high of 98°F37°C and morning low of 76°F24°C. Breezy from the ESE at 8 to 11 mph13 to 17 km/h. Heat risk in the afternoon. NightPartly cloudy, with a low around 77°F25°C. Light wind from the NE around 5 mph8 km/h.
	FridaySep 11	99°F37°C	76°F24°C	0 in0 mm· —	16%	Hot	E 6 mph10 km/h
DayMostly clear and hot, with a high of 99°F37°C and morning low of 76°F24°C. Breezy from the ESE at 7 to 10 mph12 to 16 km/h. Heat risk in the afternoon. NightMostly clear, with a low around 79°F26°C. Light wind from the NE around 5 mph9 km/h.
	SaturdaySep 12	100°F38°C	75°F24°C	0 in0 mm· —	10%	Hot	E 6 mph10 km/h
DayMostly clear and hot, with a high of 100°F38°C and morning low of 75°F24°C. Breezy from the E at 7 to 9 mph12 to 15 km/h. Heat risk in the afternoon. NightMostly clear, with a low around 77°F25°C. Breezy from the NE at 5 to 7 mph9 to 11 km/h.
	SundaySep 13	100°F38°C	75°F24°C	0 in0 mm· —	14%	Hot	E 6 mph10 km/h
DayMostly clear and hot, with a high of 100°F38°C and morning low of 75°F24°C. Breezy from the ESE at 7 to 9 mph11 to 14 km/h. Heat risk in the afternoon. NightMostly clear, with a low around 78°F25°C. Light wind from the NE around 5 mph8 km/h.
	MondaySep 14	100°F38°C	74°F24°C	0 in0 mm· —	27%	Hot	E 6 mph9 km/h
DayPartly cloudy and hot, with a high of 100°F38°C and morning low of 74°F24°C. Breezy from the ESE at 7 to 9 mph11 to 14 km/h. Heat risk in the afternoon. NightMostly clear, with a low around 77°F25°C. Light wind from the N around 5 mph8 km/h.
	TuesdaySep 15	99°F37°C	75°F24°C	0 in0 mm· —	31%	Hot	E 5 mph8 km/h
DayPartly cloudy and hot, with a high of 99°F37°C and morning low of 75°F24°C. Breezy from the ESE at 5 to 7 mph9 to 12 km/h. Heat risk in the afternoon. NightPartly cloudy, with a low around 77°F25°C. Light wind from the NNW around 5 mph7 km/h.
	WednesdaySep 16	100°F38°C	75°F24°C	0 in0 mm· —	24%	Hot	ENE 6 mph9 km/h
DayMostly clear and hot, with a high of 100°F38°C and morning low of 75°F24°C. Breezy from the E at 6 to 8 mph10 to 13 km/h. Heat risk in the afternoon. NightPartly cloudy, with a low around 77°F25°C. Light wind from the NNE around 5 mph8 km/h.
	ThursdaySep 17	99°F37°C	76°F25°C	0 in0 mm· —	17%	Hot	E 7 mph11 km/h
DayMostly clear and hot, with a high of 99°F37°C and morning low of 76°F25°C. Breezy from the ESE at 8 to 10 mph13 to 16 km/h. Heat risk in the afternoon. NightMostly clear, with a low around 77°F25°C. Breezy from the NE at 6 to 7 mph10 to 12 km/h.
	FridaySep 18	98°F37°C	77°F25°C	0 in0 mm· —	22%	Hot	ESE 7 mph11 km/h
DayMostly clear and hot, with a high of 98°F37°C and morning low of 77°F25°C. Breezy from the ESE at 9 to 11 mph15 to 18 km/h. Heat risk in the afternoon. NightMostly clear, with a low around 79°F26°C. Light wind from the ENE around 5 mph8 km/h.
	SaturdaySep 19	98°F37°C	76°F25°C	0 in0 mm· —	22%	Hot	ESE 7 mph11 km/h
DayMostly clear and hot, with a high of 98°F37°C and morning low of 76°F25°C. Breezy from the ESE at 9 to 11 mph14 to 18 km/h. Heat risk in the afternoon. NightMostly clear, with a low around 78°F26°C. Light wind from the E around 5 mph8 km/h.
	SundaySep 20	99°F37°C	75°F24°C	0 in0 mm· —	21%	Hot	ESE 6 mph9 km/h
DayMostly clear and hot, with a high of 99°F37°C and morning low of 75°F24°C. Breezy from the ESE at 7 to 9 mph11 to 15 km/h. Heat risk in the afternoon. NightMostly clear, with a low around 77°F25°C. Light wind from the ENE around 4 mph7 km/h.
	MondaySep 21	100°F38°C	75°F24°C	0 in0 mm· —	26%	Hot	E 5 mph8 km/h
DayMostly clear and hot, with a high of 100°F38°C and morning low of 75°F24°C. Breezy from the ESE at 6 to 8 mph9 to 12 km/h. Heat risk in the afternoon. NightPartly cloudy, with a low around 77°F25°C. Light wind from the N around 5 mph7 km/h.
	TuesdaySep 22	99°F37°C	76°F25°C	0 in0 mm· —	29%	Hot	ENE 5 mph9 km/h
DayMostly clear and hot, with a high of 99°F37°C and morning low of 76°F25°C. Breezy from the ESE at 5 to 7 mph9 to 12 km/h. Heat risk in the afternoon. NightPartly cloudy, with a low around 78°F26°C. Breezy from the NNW at 5 to 7 mph8 to 11 km/h.

Nearby Cities

José de Freitas21 mi34 km Teresina24 mi38 km Campo Maior25 mi40 km Timon26 mi42 km Demerval Lobão27 mi43 km União42 mi67 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: 5.0381°S, 42.4600°W·Elevation: 192m·Timezone: America/Fortaleza·Population: 47,453