Current Conditions

Rio Branco, Acre

90°F32°C
Clear

Wind

WNW 1 mph2 km/h

Humidity

45%

Cloud Cover

31%

As of Tuesday, September 8, 2026 at 2:21 PM GMT-5

Today's Outlook

Day

Partly cloudy and hot, with a high of 91°F33°C. Light wind from the WNW around 2 mph3 km/h. Humid.

Night

Partly cloudy, with a low around 75°F24°C. Light wind from the WSW around 3 mph5 km/h.

7-Day Forecast

DayConditionHigh (°F)Low (°F)Precip (mm)Cloud Cover (%)Wind (mph)
ClearHigh 91°F33°CFeels 94°F34°CLow 75°F24°CPrecip 0 in0 mmCloud 33%Wind W 3 mph4 km/hTuesday: Partly cloudy and hot, with a high of 91°F33°C. Light wind from the WNW around 2 mph3 km/h. Humid. Tuesday Night: Partly cloudy, with a low around 75°F24°C. Light wind from the WSW around 3 mph5 km/h.
DrizzleHigh 95°F35°CFeels 100°F38°CLow 69°F21°CPrecip 0 in0.1 mm19%Cloud 42%Wind NW 4 mph6 km/hWednesday: Partly cloudy and hot, with a high of 95°F35°C and morning low of 74°F24°C. Light wind from the NW around 3 mph5 km/h. 19% chance of drizzle in the afternoon. Heat risk in the afternoon. Wednesday Night: Partly cloudy, with a low around 69°F21°C. Light wind from the NW around 4 mph6 km/h.
DrizzleHigh 97°F36°CFeels 103°F40°CLow 73°F23°CPrecip 0.01 in0.2 mm11%Cloud 21%Wind NW 5 mph8 km/hThursday: Partly cloudy and hot, with a high of 97°F36°C and morning low of 78°F26°C — feels like 104°F40°C. Light wind from the NW around 5 mph7 km/h. 11% chance of drizzle in the afternoon. Heat risk in the afternoon. Thursday Night: Mostly clear, with a low around 73°F23°C. Light wind from the NNW around 5 mph8 km/h.
DrizzleHigh 97°F36°CFeels 105°F40°CLow 74°F24°CPrecip 0.01 in0.3 mm28%Cloud 23%Wind NNW 5 mph9 km/hFriday: Partly cloudy and hot, with a high of 97°F36°C and morning low of 79°F26°C — feels like 104°F40°C. Breezy from the NW at 6 to 7 mph9 to 11 km/h. 28% chance of drizzle in the afternoon. Heat risk in the afternoon. Friday Night: Mostly clear, with a low around 74°F24°C. Light wind from the NNW around 5 mph8 km/h.
ShowersHigh 95°F35°CFeels 104°F40°CLow 76°F25°CPrecip 0.11 in2.8 mm68%Cloud 41%Wind NNW 4 mph7 km/hSaturday: Partly cloudy and hot, with a high of 95°F35°C and morning low of 80°F27°C — feels like 104°F40°C. Light wind from the NNW around 4 mph7 km/h. 68% chance of showers throughout the day. Heat risk in the afternoon. Saturday Night: Partly cloudy, with a low around 76°F25°C. Light wind from the N around 4 mph7 km/h. 19% chance of drizzle in the evening.
RainHigh 77°F25°CLow 68°F20°CPrecip 0.73 in18.5 mm90%Cloud 85%Wind SSE 7 mph11 km/hSunday: Overcast and warm, with a high of 75°F24°C. Breezy from the SSE at 8 to 9 mph13 to 15 km/h. 90% chance of rain throughout the day. Humid. Sunday Night: Mostly cloudy, with a low around 68°F20°C. Breezy from the SSE at 6 to 8 mph10 to 12 km/h. 68% chance of rain throughout the night.
DrizzleHigh 82°F28°CLow 65°F18°CPrecip 0.04 in1 mm18%Cloud 54%Wind SSE 5 mph9 km/hMonday: Mostly cloudy and warm, with a high of 82°F28°C and morning low of 66°F19°C. Breezy from the SSE at 5 to 7 mph8 to 11 km/h. 18% chance of drizzle in the morning. Monday Night: Mostly cloudy, with a low around 65°F18°C. Breezy from the S at 6 to 7 mph9 to 12 km/h. 12% chance of drizzle before dawn.

15-Day Forecast

Day High Low Precip Cloud Cover Condition Wind
TuesdaySep 891°F33°C
Feels 94°F34°C
75°F24°C0 in0 mm· —33%ClearW 3 mph4 km/h
WednesdaySep 995°F35°C
Feels 100°F38°C
69°F21°C0 in0.1 mm· 19%42%DrizzleNW 4 mph6 km/h
ThursdaySep 1097°F36°C
Feels 103°F40°C
73°F23°C0.01 in0.2 mm· 11%21%DrizzleNW 5 mph8 km/h
FridaySep 1197°F36°C
Feels 105°F40°C
74°F24°C0.01 in0.3 mm· 28%23%DrizzleNNW 5 mph9 km/h
SaturdaySep 1295°F35°C
Feels 104°F40°C
76°F25°C0.11 in2.8 mm· 68%41%ShowersNNW 4 mph7 km/h
SundaySep 1377°F25°C68°F20°C0.73 in18.5 mm· 90%85%RainSSE 7 mph11 km/h
MondaySep 1482°F28°C65°F18°C0.04 in1 mm· 18%54%DrizzleSSE 5 mph9 km/h
TuesdaySep 1590°F32°C
Feels 94°F34°C
68°F20°C0.01 in0.3 mm· 13%21%DrizzleS 4 mph7 km/h
WednesdaySep 1692°F33°C
Feels 95°F35°C
71°F22°C0.03 in0.7 mm· 32%28%DrizzleSSE 4 mph7 km/h
ThursdaySep 1792°F33°C
Feels 97°F36°C
72°F22°C0.05 in1.3 mm· 35%43%ShowersS 3 mph6 km/h
FridaySep 1891°F33°C
Feels 98°F36°C
74°F23°C0.09 in2.3 mm· 47%53%ShowersSSW 3 mph5 km/h
SaturdaySep 1991°F33°C
Feels 97°F36°C
74°F23°C0.09 in2.3 mm· 50%49%ShowersS 4 mph6 km/h
SundaySep 2091°F33°C
Feels 98°F37°C
74°F23°C0.1 in2.6 mm· 50%51%ShowersWNW 4 mph6 km/h
MondaySep 2190°F32°C
Feels 97°F36°C
74°F23°C0.14 in3.5 mm· 54%59%ShowersNNW 4 mph7 km/h
TuesdaySep 2291°F33°C
Feels 97°F36°C
73°F23°C0.1 in2.5 mm· 41%55%ShowersNW 4 mph7 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: 9.9747°S, 67.8100°W·Elevation: 153m·Timezone: America/Rio_Branco·Population: 419,452