Current Conditions

Rio Branco, Acre

80°F27°C
Hot

Wind

WSW 3 mph5 km/h

Humidity

70%

Cloud Cover

26%

As of Tuesday, September 8, 2026 at 8:14 PM GMT-5

Today's Outlook

Night

Partly cloudy, with a low around 69°F21°C. Light wind from the NW around 4 mph6 km/h.

7-Day Forecast

DayConditionHigh (°F)Low (°F)Precip (mm)Cloud Cover (%)Wind (mph)
HotHigh 96°F36°CLow 69°F21°CPrecip 0 in0.1 mm7%Cloud 48%Wind NW 4 mph6 km/hWednesday: Mostly cloudy and hot, with a high of 96°F36°C and morning low of 74°F24°C. Light wind from the NNW around 3 mph6 km/h. 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 98°F37°CLow 73°F23°CPrecip 0.01 in0.2 mm25%Cloud 19%Wind NW 5 mph7 km/hThursday: Mostly clear and hot, with a high of 98°F37°C and morning low of 78°F26°C. Light wind from the NW around 5 mph7 km/h. 25% 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 75°F24°CPrecip 0.02 in0.4 mm32%Cloud 21%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 12 km/h. 32% chance of drizzle in the afternoon. Heat risk in the afternoon. Friday Night: Mostly clear, with a low around 75°F24°C. Light wind from the NNW around 5 mph8 km/h.
ShowersHigh 95°F35°CFeels 103°F40°CLow 76°F25°CPrecip 0.11 in2.8 mm69%Cloud 43%Wind NNW 4 mph7 km/hSaturday: Partly cloudy and hot, with a high of 95°F35°C and morning low of 80°F26°C — feels like 104°F40°C. Light wind from the NNW around 4 mph7 km/h. 69% 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. 16% chance of drizzle throughout the night.
RainHigh 76°F25°CLow 68°F20°CPrecip 0.64 in16.2 mm88%Cloud 86%Wind SSE 7 mph11 km/hSunday: Overcast and warm, with a high of 74°F24°C. Breezy from the SSE at 8 to 9 mph13 to 15 km/h. 88% chance of rain throughout the day. Humid. Sunday Night: Overcast, with a low around 68°F20°C. Breezy from the SSE at 6 to 8 mph10 to 12 km/h. 74% chance of rain throughout the night.
DrizzleHigh 82°F28°CLow 65°F18°CPrecip 0.03 in0.7 mm14%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. 14% chance of drizzle throughout the day. Monday Night: Mostly cloudy, with a low around 65°F18°C. Breezy from the S at 6 to 7 mph9 to 12 km/h.
DrizzleHigh 90°F32°CFeels 94°F35°CLow 69°F20°CPrecip 0 in0.1 mm10%Cloud 23%Wind S 4 mph7 km/hTuesday: Partly cloudy and hot, with a high of 90°F32°C and morning low of 72°F22°C. Light wind from the SSE around 4 mph6 km/h. 10% chance of drizzle. Humid. Tuesday Night: Mostly clear, with a low around 69°F20°C. Light wind from the S around 5 mph8 km/h.

15-Day Forecast

Day High Low Precip Cloud Cover Condition Wind
WednesdaySep 996°F36°C69°F21°C0 in0.1 mm· 7%48%HotNW 4 mph6 km/h
ThursdaySep 1098°F37°C73°F23°C0.01 in0.2 mm· 25%19%DrizzleNW 5 mph7 km/h
FridaySep 1197°F36°C
Feels 105°F40°C
75°F24°C0.02 in0.4 mm· 32%21%DrizzleNNW 5 mph9 km/h
SaturdaySep 1295°F35°C
Feels 103°F40°C
76°F25°C0.11 in2.8 mm· 69%43%ShowersNNW 4 mph7 km/h
SundaySep 1376°F25°C68°F20°C0.64 in16.2 mm· 88%86%RainSSE 7 mph11 km/h
MondaySep 1482°F28°C65°F18°C0.03 in0.7 mm· 14%54%DrizzleSSE 5 mph9 km/h
TuesdaySep 1590°F32°C
Feels 94°F35°C
69°F20°C0 in0.1 mm· 10%23%DrizzleS 4 mph7 km/h
WednesdaySep 1693°F34°C
Feels 98°F37°C
71°F22°C0.01 in0.3 mm· 29%25%DrizzleSSE 4 mph7 km/h
ThursdaySep 1792°F33°C
Feels 98°F37°C
73°F23°C0.06 in1.5 mm· 50%45%ShowersSSE 3 mph5 km/h
FridaySep 1891°F33°C
Feels 99°F37°C
74°F23°C0.09 in2.4 mm· 46%55%ShowersSSW 3 mph5 km/h
SaturdaySep 1991°F33°C
Feels 98°F37°C
74°F23°C0.08 in2.1 mm· 47%52%ShowersSSW 4 mph6 km/h
SundaySep 2090°F32°C
Feels 98°F36°C
74°F23°C0.13 in3.4 mm· 61%54%ShowersNW 3 mph5 km/h
MondaySep 2191°F33°C
Feels 99°F37°C
74°F23°C0.12 in3 mm· 51%51%ShowersNW 4 mph6 km/h
TuesdaySep 2292°F34°C
Feels 100°F38°C
74°F23°C0.11 in2.8 mm· 54%49%ShowersNW 4 mph7 km/h
WednesdaySep 2394°F35°C
Feels 102°F39°C
74°F23°C0.04 in1 mm· 29%42%DrizzleNW 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