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: Sunday 85%.
Long-term weather forecast
- Tuesday
- 20. Oct 2026
- 32°C
- 18°C
Partly Cloudy
- Precip. probability: 0%
- Precipitation: 0mm
- Wind: 13km/hSE 133°
- Humidity: 31%
- UV index: 11
- Sunrise: 05:45 -03
- Sunset: 18:27 -03
- details ▼
- Wednesday
- 21. Oct 2026
- 35°C
- 20°C
Mostly Cloudy
- Precip. probability: 4%
- Precipitation: 0mm
- Wind: 20km/hESE 116°
- Humidity: 42%
- UV index: 11
- Sunrise: 05:45 -03
- Sunset: 18:27 -03
- details ▼
- Thursday
- 22. Oct 2026
- 27°C
- 20°C
Scattered Thunderstorms
- Precip. probability: 56%
- Precipitation: 8mm
- Wind: 25km/hESE 117°
- Humidity: 62%
- UV index: 6
- Sunrise: 05:44 -03
- Sunset: 18:28 -03
- details ▼
- Friday
- 23. Oct 2026
- 26°C
- 21°C
Thunderstorms
- Precip. probability: 71%
- Precipitation: 12mm
- Wind: 15km/hE 88°
- Humidity: 74%
- UV index: 7
- Sunrise: 05:43 -03
- Sunset: 18:28 -03
- details ▼
- Saturday
- 24. Oct 2026
- 32°C
- 21°C
Scattered Thunderstorms
- Precip. probability: 62%
- Precipitation: 13mm
- Wind: 18km/hNNW 344°
- Humidity: 65%
- UV index: 10
- Sunrise: 05:42 -03
- Sunset: 18:29 -03
- details ▼
- Sunday
- 25. Oct 2026
- 25°C
- 20°C
Thunderstorms
- Precip. probability: 85%
- Precipitation: 18mm
- Wind: 18km/hNW 311°
- Humidity: 82%
- UV index: 5
- Sunrise: 05:42 -03
- Sunset: 18:29 -03
- details ▼
- Monday
- 26. Oct 2026
- 29°C
- 19°C
Mostly Cloudy
- Precip. probability: 24%
- Precipitation: 0mm
- Wind: 14km/hSSW 207°
- Humidity: 66%
- UV index: 10
- Sunrise: 05:41 -03
- Sunset: 18:30 -03
- details ▼
- Tuesday
- 27. Oct 2026
- 29°C
- 20°C
Mostly Cloudy
- Precip. probability: 24%
- Precipitation: 4mm
- Wind: 16km/hESE 111°
- Humidity: 62%
- UV index: 10
- Sunrise: 05:40 -03
- Sunset: 18:30 -03
- details ▼
- Wednesday
- 28. Oct 2026
- 29°C
- 20°C
Thunderstorms
- Precip. probability: 60%
- Precipitation: 16mm
- Wind: 15km/hE 87°
- Humidity: 68%
- 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: 12mm
- Wind: 14km/hNE 47°
- Humidity: 74%
- UV index: 8
- Sunrise: 05:39 -03
- Sunset: 18:31 -03
- details ▼
Conditions over the next ten days suggest that a combination of stormy and cloudy weather is expected.
Rain is anticipated on Thursday through Sunday, next Tuesday through next Thursday.
The temperature will vary considerably throughout the forecast window. The maximum temperature will vary between 25°C and 35°C, while the lowest nightly temperature differences will be negligible, as the lowest temperatures will remain in the range of 18°C to 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.
Taking the humidity into consideration, the maximum feel-like temperature may increase and range between 25°C and a sweltering 39°C.
Among all months, October is the warmest in Arco-Íris, showing average highs of 30.8°C and average lows of 19.4°C.
Rain is anticipated on Thursday through Sunday, next Tuesday through next Thursday.
The temperature will vary considerably throughout the forecast window. The maximum temperature will vary between 25°C and 35°C, while the lowest nightly temperature differences will be negligible, as the lowest temperatures will remain in the range of 18°C to 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.
Taking the humidity into consideration, the maximum feel-like temperature may increase and range between 25°C and a sweltering 39°C.
Among all months, October is the warmest in Arco-Íris, showing average highs of 30.8°C and average lows of 19.4°C.
Updated: Oct 20, 2026 @ 15:49:23 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 stormy and cloudy weather is predicted for the next ten days.
Rain is predicted for Thursday through Sunday, next Tuesday through next Thursday in Arco-Íris. Sunday, with moderate precipitation of 18mm, will be the day with the most rainfall.
The maximum temperature will range between 25°C and 35°C, while the minimum temperature will vary between 18°C and 21°C.
Including the humidity's impact, the maximum feel-like temperature will range between 25°C and 39°C.
Including the humidity's impact, the maximum feel-like temperature will range between 25°C and 39°C.
Tomorrow will be the hottest day, with a maximum temperature of 35°C. The coldest day will be Sunday, with a maximum of 25°C.
On Saturday, in Arco-Íris, scattered thunderstorms are anticipated, and some of them may bring gusty winds and rain.
With a probability of 62%, moderate precipitation of 13mm is anticipated on Saturday.
On Saturday, the highest temperature will be 32°C, while the lowest temperature will be 21°C.
On Sunday, in Arco-Íris, unstable weather may lead to more thunderstorms.
With a probability of 85%, moderate precipitation of 18mm is forecasted on Sunday.
On Sunday, the maximum temperature will be 25°C, while the minimum temperature will be 20°C.
