Current Conditions

Parnaíba, Piauí

78°F25°C
Drizzle

Wind

E 11 mph17 km/h

Humidity

86%

Cloud Cover

64%

As of Wednesday, September 23, 2026 at 5:13 AM GMT-3

Today's Outlook

Day

Mostly cloudy and hot, with a high of 91°F33°C and morning low of 78°F25°C — feels like 99°F37°C. Breezy from the ENE at 11 to 14 mph18 to 23 km/h. 17% chance of drizzle in the afternoon. Heat risk in the afternoon.

Night

Partly cloudy, with a low around 78°F26°C. Breezy from the NE at 12 to 13 mph19 to 20 km/h.

7-Day Forecast

DayConditionHigh (°F)Low (°F)Precip (mm)Cloud Cover (%)Wind (mph)
DrizzleHigh 91°F33°CFeels 98°F37°CLow 78°F25°CPrecip 0.01 in0.2 mm17%Cloud 48%Wind ENE 11 mph18 km/hWednesday: Mostly cloudy and hot, with a high of 91°F33°C and morning low of 78°F25°C — feels like 99°F37°C. Breezy from the ENE at 11 to 14 mph18 to 23 km/h. 17% chance of drizzle in the afternoon. Heat risk in the afternoon. Wednesday Night: Partly cloudy, with a low around 78°F26°C. Breezy from the NE at 12 to 13 mph19 to 20 km/h.
DrizzleHigh 91°F33°CFeels 98°F37°CLow 78°F25°CPrecip 0 in0.1 mm15%Cloud 45%Wind ENE 12 mph20 km/hThursday: Partly cloudy and hot, with a high of 91°F33°C and morning low of 78°F25°C — feels like 99°F37°C. Breezy from the ENE at 13 to 15 mph20 to 24 km/h. 15% chance of drizzle in the afternoon. Heat risk in the afternoon. Thursday Night: Partly cloudy, with a low around 78°F26°C. Breezy from the NE at 12 to 14 mph19 to 22 km/h.
DrizzleHigh 91°F33°CFeels 98°F37°CLow 78°F26°CPrecip 0.02 in0.4 mm20%Cloud 49%Wind ENE 12 mph20 km/hFriday: Mostly cloudy and hot, with a high of 91°F33°C and morning low of 78°F26°C — feels like 99°F37°C. Breezy from the ENE at 13 to 14 mph20 to 23 km/h. 20% chance of drizzle around midday. Heat risk in the afternoon. Friday Night: Partly cloudy, with a low around 78°F26°C. Breezy from the NE at 12 to 13 mph20 to 21 km/h.
HotHigh 93°F34°CFeels 98°F37°CLow 77°F25°CPrecip 0 in0 mmCloud 44%Wind ENE 12 mph19 km/hSaturday: Partly cloudy and hot, with a high of 93°F34°C and morning low of 77°F25°C — feels like 99°F37°C. Breezy from the E at 11 to 14 mph18 to 23 km/h. Heat risk in the afternoon. Saturday Night: Partly cloudy, with a low around 78°F25°C. Breezy from the ENE at 12 to 13 mph19 to 21 km/h.
HotHigh 93°F34°CFeels 99°F37°CLow 78°F25°CPrecip 0 in0 mmCloud 37%Wind ENE 13 mph21 km/hSunday: Partly cloudy and hot, with a high of 93°F34°C and morning low of 78°F25°C — feels like 99°F37°C. Breezy from the E at 12 to 15 mph20 to 24 km/h. Heat risk in the afternoon. Sunday Night: Partly cloudy, with a low around 78°F25°C. Breezy from the ENE at 13 to 15 mph21 to 24 km/h.
HotHigh 92°F34°CFeels 98°F37°CLow 78°F26°CPrecip 0.01 in0.2 mm7%Cloud 31%Wind ENE 13 mph21 km/hMonday: Partly cloudy and hot, with a high of 92°F34°C and morning low of 78°F26°C — feels like 99°F37°C. Breezy from the E at 13 to 15 mph20 to 25 km/h. Heat risk in the afternoon. Monday Night: Partly cloudy, with a low around 78°F26°C. Breezy from the ENE at 14 mph22 km/h.
HotHigh 93°F34°CFeels 98°F37°CLow 77°F25°CPrecip 0 in0 mmCloud 19%Wind ENE 13 mph21 km/hTuesday: Mostly clear and hot, with a high of 93°F34°C and morning low of 77°F25°C. Breezy from the E at 12 to 15 mph20 to 24 km/h. Heat risk in the afternoon. Tuesday Night: Mostly clear, with a low around 78°F25°C. Breezy from the ENE at 13 to 14 mph22 to 23 km/h.

15-Day Forecast

Day High Low Precip Cloud Cover Condition Wind
WednesdaySep 2391°F33°C
Feels 98°F37°C
78°F25°C0.01 in0.2 mm· 17%48%DrizzleENE 11 mph18 km/h
ThursdaySep 2491°F33°C
Feels 98°F37°C
78°F25°C0 in0.1 mm· 15%45%DrizzleENE 12 mph20 km/h
FridaySep 2591°F33°C
Feels 98°F37°C
78°F26°C0.02 in0.4 mm· 20%49%DrizzleENE 12 mph20 km/h
SaturdaySep 2693°F34°C
Feels 98°F37°C
77°F25°C0 in0 mm· —44%HotENE 12 mph19 km/h
SundaySep 2793°F34°C
Feels 99°F37°C
78°F25°C0 in0 mm· —37%HotENE 13 mph21 km/h
MondaySep 2892°F34°C
Feels 98°F37°C
78°F26°C0.01 in0.2 mm· 7%31%HotENE 13 mph21 km/h
TuesdaySep 2993°F34°C
Feels 98°F37°C
77°F25°C0 in0 mm· —19%HotENE 13 mph21 km/h
WednesdaySep 3094°F34°C
Feels 100°F38°C
78°F25°C0 in0 mm· —25%HotENE 14 mph23 km/h
ThursdayOct 193°F34°C
Feels 98°F37°C
78°F26°C0 in0 mm· —26%HotENE 16 mph25 km/h
FridayOct 292°F33°C
Feels 97°F36°C
78°F25°C0 in0.1 mm· 3%32%HotENE 15 mph24 km/h
SaturdayOct 393°F34°C
Feels 97°F36°C
77°F25°C0 in0.1 mm· 2%41%HotENE 14 mph23 km/h
SundayOct 494°F34°C
Feels 97°F36°C
78°F25°C0 in0.1 mm· 3%39%HotENE 15 mph24 km/h
MondayOct 594°F34°C
Feels 97°F36°C
77°F25°C0 in0 mm· —24%HotENE 15 mph24 km/h
TuesdayOct 694°F35°C
Feels 97°F36°C
77°F25°C0 in0 mm· —20%HotENE 15 mph24 km/h
WednesdayOct 795°F35°C78°F25°C0 in0 mm· —16%HotENE 15 mph24 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 →

How to Access Weather Forecasts

PatternExampleDescription
/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=11.5Find 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: 2.9047°S, 41.7767°W·Elevation: 9m·Timezone: America/Fortaleza·Population: 170,491