Weather forecast for 10 daysArco-Íris, Brazil
10-day overview
Daily temperatures
Warmest day: tomorrow 35°C.
Coldest day: Sunday 25°C.
Coldest day: Sunday 25°C.
Chance of precipitation
Highest chance: Friday 92%.
Long-term weather forecast
- Tuesday
- 20. Oct 2026
- min.
- 18°C
Clear
- Precip. probability: 2%
- Precipitation: 0mm
- Wind: 18km/hESE 120°
- Humidity: 55%
- UV index: 0
- Sunrise: 05:45 -03
- Sunset: 18:27 -03
- details ▼
- Wednesday
- 21. Oct 2026
- 35°C
- 21°C
Partly Cloudy
- Precip. probability: 2%
- Precipitation: 0mm
- Wind: 20km/hESE 117°
- Humidity: 42%
- UV index: 11
- Sunrise: 05:45 -03
- Sunset: 18:27 -03
- details ▼
- Thursday
- 22. Oct 2026
- 28°C
- 20°C
Scattered Thunderstorms
- Precip. probability: 42%
- Precipitation: 3mm
- Wind: 25km/hESE 114°
- Humidity: 58%
- UV index: 5
- Sunrise: 05:44 -03
- Sunset: 18:28 -03
- details ▼
- Friday
- 23. Oct 2026
- 26°C
- 20°C
Thunderstorms
- Precip. probability: 92%
- Precipitation: 9mm
- Wind: 15km/hE 89°
- Humidity: 75%
- UV index: 6
- Sunrise: 05:43 -03
- Sunset: 18:28 -03
- details ▼
- Saturday
- 24. Oct 2026
- 32°C
- 21°C
Scattered Thunderstorms
- Precip. probability: 49%
- Precipitation: 13mm
- Wind: 19km/hNNW 338°
- Humidity: 64%
- UV index: 8
- Sunrise: 05:42 -03
- Sunset: 18:29 -03
- details ▼
- Sunday
- 25. Oct 2026
- 25°C
- 19°C
Thunderstorms
- Precip. probability: 89%
- Precipitation: 13mm
- Wind: 19km/hNW 305°
- Humidity: 83%
- UV index: 6
- Sunrise: 05:42 -03
- Sunset: 18:29 -03
- details ▼
- Monday
- 26. Oct 2026
- 29°C
- 19°C
Partly Cloudy
- Precip. probability: 12%
- Precipitation: 0mm
- Wind: 13km/hS 183°
- Humidity: 64%
- UV index: 11
- Sunrise: 05:41 -03
- Sunset: 18:30 -03
- details ▼
- Tuesday
- 27. Oct 2026
- 29°C
- 20°C
Partly Cloudy
- Precip. probability: 24%
- Precipitation: 3mm
- Wind: 18km/hESE 113°
- Humidity: 58%
- UV index: 11
- Sunrise: 05:40 -03
- Sunset: 18:30 -03
- details ▼
- Wednesday
- 28. Oct 2026
- 28°C
- 20°C
Thunderstorms
- Precip. probability: 60%
- Precipitation: 13mm
- Wind: 15km/hESE 118°
- Humidity: 67%
- UV index: 8
- Sunrise: 05:40 -03
- Sunset: 18:31 -03
- details ▼
- Thursday
- 29. Oct 2026
- 28°C
- 20°C
Thunderstorms
- Precip. probability: 60%
- Precipitation: 10mm
- Wind: 13km/hNNE 18°
- Humidity: 75%
- UV index: 6
- Sunrise: 05:39 -03
- Sunset: 18:31 -03
- details ▼
A combination of unstable and cloudy weather is predicted.
Rainfall is predicted for Thursday through Sunday, next Tuesday through next Thursday. With moderate precipitation of 13mm, Saturday, Sunday and next Wednesday will be the wettest days.
Temperature fluctuation will be noticeable in the coming days. Forecast highs will fluctuate between 25°C and 35°C, while the overnight low will be nearly unchanged, as the minimum temperature is expected to range between 18°C and 21°C.
Expect the hottest day on Wednesday, with temperatures peaking at 35°C; the lowest daytime temperature of the period will be reached on Sunday, peaking at 25°C.
October stands out as the warmest month in Arco-Íris, bringing average highs of 30.8°C and lows near 19.4°C.
Rainfall is predicted for Thursday through Sunday, next Tuesday through next Thursday. With moderate precipitation of 13mm, Saturday, Sunday and next Wednesday will be the wettest days.
Temperature fluctuation will be noticeable in the coming days. Forecast highs will fluctuate between 25°C and 35°C, while the overnight low will be nearly unchanged, as the minimum temperature is expected to range between 18°C and 21°C.
Expect the hottest day on Wednesday, with temperatures peaking at 35°C; the lowest daytime temperature of the period will be reached on Sunday, peaking at 25°C.
October stands out as the warmest month in Arco-Íris, bringing average highs of 30.8°C and lows near 19.4°C.
Updated: Oct 20, 2026 @ 22:23:33 UTC
Published by: Weather Atlas | About Us
Data Sources | weather.com | Weather
Weather Forecasting & Climate
Published by: Weather Atlas | About Us
Data Sources | weather.com | Weather
Weather Forecasting & Climate
Frequently asked questions
In Arco-Íris, a combination of lightning-active and dull weather is anticipated for the next ten days.
Rainfall is anticipated on Thursday through Sunday, next Tuesday through next Thursday in Arco-Íris. With moderate precipitation of 13mm, Saturday, Sunday and next Wednesday will be the wettest days.
The maximum temperature will vary between 25°C and 35°C, while the minimum temperature will be between 18°C and 21°C.
The hottest day will be tomorrow, with a maximum of 35°C. The coldest day will be Sunday, with a maximum of 25°C.
On Saturday, scattered thunderstorms are forecasted, bringing possible lightning and brief downpours.
Moderate precipitation of 13mm is predicted on Saturday. The possibility of rainfall is 49%.
On Saturday, the maximum temperature in Arco-Íris will be 32°C, while the minimum temperature will be 21°C.
On Sunday, scattered thunderstorms are expected to form.
Moderate precipitation of 13mm is expected on Sunday. The likelihood of rainfall is high at 89%.
On Sunday, the maximum temperature will be 25°C, while the minimum temperature will be 19°C.
