Weather forecast for tomorrowPematangsiantar, Indonesia

Weather forecast for tomorrow

Monday 9. Nov 2026

  • 29°C
  • 22°C
PM Thunderstorms
PM Thunderstorms
  • Precip. probability: 61%
  • Precipitation: 9mm
  • Wind: 12km/hNE 41°
  • Humidity: 81%
  • UV index: 11
  • Sunrise: 06:07 WIB
  • Sunset: 18:07 WIB
  • ▼
On Monday, in Pematangsiantar, rainy weather and thunderstorms are also expected in the afternoon.
The likelihood of rainfall for tomorrow is high. However, precipitation will be light. Temperature is predicted to swing from a high of a temperate 29°C to a low of a pleasant 22°C.
The maximum heat index, which combines relative humidity and air temperature, is appraised at a sizzling 35°C. Note that heat index values are valued for light wind and location in the shade. Be aware that direct exposure to sunlight increases heat impact and may raise the heat index by up to 15 Fahrenheit (8 Celsius) degrees.
The temperature will be in line with November's average maximum of 28.2°C.
Sunrise will be at 06:07 and sunset at 18:07; tomorrow's daylight will last for 12h and 0min.

Hourly overview

Hourly temperatures

Warmest period: 12h - 15h 33°C.
Coldest hour: 3h 23°C.

Chance of precipitation

Highest chance: 3h 64%.

Hourly weather forecast

  • 0h
  • 24°C
  • Feels like:
    24°C
Showers
Showers
  • Precip. probability: 57%
  • Precipitation: 2mm
  • Wind: 5km/hSW 230°
  • Humidity: 95%
  • Pressure: 1013mbar
  • Visibility: 11km
  • UV index: 0
  • ▼
  • 2h
  • 23°C
  • Feels like:
    23°C
Showers
Showers
  • Precip. probability: 51%
  • Precipitation: 2mm
  • Wind: 4km/hSW 223°
  • Humidity: 95%
  • Pressure: 1012mbar
  • Visibility: 11km
  • UV index: 0
  • ▼
  • 4h
  • 23°C
  • Feels like:
    23°C
Showers
Showers
  • Precip. probability: 52%
  • Precipitation: 1mm
  • Wind: 5km/hSW 222°
  • Humidity: 97%
  • Pressure: 1011mbar
  • Visibility: 11km
  • UV index: 0
  • ▼
  • 6h
  • 23°C
  • Feels like:
    24°C
Cloudy
Cloudy
  • Precip. probability: 13%
  • Precipitation: 0mm
  • Wind: 5km/hSW 230°
  • Humidity: 97%
  • Pressure: 1012mbar
  • Visibility: 12km
  • UV index: 0
  • ▼
Sunrise: 06:07
  • 8h
  • 25°C
  • Feels like:
    28°C
Cloudy
Cloudy
  • Precip. probability: 1%
  • Precipitation: 0mm
  • Wind: 5km/hSW 228°
  • Humidity: 90%
  • Pressure: 1013mbar
  • Visibility: 15km
  • UV index: 1
  • ▼
  • 10h
  • 27°C
  • Feels like:
    31°C
Mostly Cloudy
Mostly Cloudy
  • Precip. probability: 14%
  • Precipitation: 0mm
  • Wind: 8km/hE 101°
  • Humidity: 78%
  • Pressure: 1013mbar
  • Visibility: 15km
  • UV index: 8
  • ▼
  • 12h
  • 29°C
  • Feels like:
    33°C
Mostly Cloudy
Mostly Cloudy
  • Precip. probability: 10%
  • Precipitation: 0mm
  • Wind: 11km/hNE 42°
  • Humidity: 74%
  • Pressure: 1011mbar
  • Visibility: 16km
  • UV index: 11
  • ▼
  • 14h
  • 29°C
  • Feels like:
    33°C
Scattered Thunderstorms
Scattered Thunderstorms
  • Precip. probability: 35%
  • Precipitation: 1mm
  • Wind: 12km/hNE 35°
  • Humidity: 73%
  • Pressure: 1009mbar
  • Visibility: 11km
  • UV index: 8
  • ▼
  • 16h
  • 28°C
  • Feels like:
    32°C
Thunderstorms
Thunderstorms
  • Precip. probability: 62%
  • Precipitation: 2mm
  • Wind: 11km/hNNE 27°
  • Humidity: 81%
  • Pressure: 1009mbar
  • Visibility: 10km
  • UV index: 2
  • ▼
  • 18h
  • 26°C
  • Feels like:
    29°C
Showers
Showers
  • Precip. probability: 46%
  • Precipitation: 1mm
  • Wind: 6km/hNE 44°
  • Humidity: 89%
  • Pressure: 1010mbar
  • Visibility: 11km
  • UV index: 0
  • ▼
Sunset: 18:07
  • 20h
  • 25°C
  • Feels like:
    28°C
Showers
Showers
  • Precip. probability: 52%
  • Precipitation: 1mm
  • Wind: 5km/hS 186°
  • Humidity: 93%
  • Pressure: 1012mbar
  • Visibility: 11km
  • UV index: 0
  • ▼
  • 22h
  • 24°C
  • Feels like:
    27°C
Showers
Showers
  • Precip. probability: 50%
  • Precipitation: 1mm
  • Wind: 4km/hSW 229°
  • Humidity: 96%
  • Pressure: 1013mbar
  • Visibility: 10km
  • UV index: 0
  • ▼
Tomorrow, a combination of rain-soaked, dull and stormy weather is forecasted.
Rainfall is predicted from midnight to 5h, and from 14h to 23h. With light precipitation of 2mm, the most intense rain will be falling from midnight, 2h, 3h, and from 15h to 17h.
The temperature will be between the lowest temperature of 23°C and the highest temperature of 29°C. The feels-like temperature will be between a minimum of 23°C and a maximum of 33°C. The hottest part of the day will be from 12h to 14h.
The forecasted high will be similar to the typical November maximum of 28.2°C. The lowest temperature is also close to November's typical minimum of 21°C.
Updated: Nov 8, 2026 @ 15:43:31 UTC
Published by: Weather Atlas | About Us
Data Sources | weather.com | Weather
Weather Forecasting & Climate

Frequently asked questions

On Monday, thunderstorms are forecasted to develop with occasional lightning.

With a probability of 61%, light precipitation of 9mm is forecasted.

Tomorrow, the highest temperature in Pematangsiantar, Indonesia, will be 29°C, while the lowest temperature will be 22°C. The maximum heat index, which factors the actual air temperature with the relative humidity, is evaluated at 35°C.
The highest temperature will be in line with the average maximum of 28.2°C in November. The lowest temperature will be also in line with the average low of 21°C.

On Monday, in Pematangsiantar, sunrise will be at 06:07 and sunset at 18:07 (WIB).

In Pematangsiantar, the length of the day tomorrow will be 12h and 0min.