Appenzell Ausserrhoden weather
Today's sky, the hour-by-hour rain chance and the 16-day forecast for Appenzell Ausserrhoden, Switzerland. Like most weather services, we show Appenzell Ausserrhoden at one spot: Herisau, its largest city. At 10:15 PM local time it was cloudy and 5°C (41°F). Little to no rain in the next 24 hours. Best months for weather: May–Sep.
Current conditions
- Clouds
- 100%
- Chance of rain
- 0%
- Rain
- 0.0 mm/h
Hourly Forecast
Little to no rain in the next 24 hours
Daily Forecast
Best Time to Visit
Peak season May–SepOff season Nov–Mar
About Herisau weather
Is it raining in Herisau right now?
No. It’s cloudy and 5° right now. Little to no rain in the next 24 hours.
What’s the weather like in Herisau this week?
Over the next 7 days, expect highs of 4–8° and lows of 1–3°. Little rain is expected. The driest day looks like Saturday.
Has it been raining in Herisau lately?
In the past 7 days, Herisau had 3 rainy days and 14.4 mm of rain in total.
What should I pack for Herisau?
For the coming week, bring a warm winter coat.
Appenzell Ausserrhoden weather by month
When is the best time to visit Appenzell Ausserrhoden?
Based on weather alone, the best time to visit Appenzell Ausserrhoden is May–Sep, according to NASA's 2001–2025 climate averages. Nov–Mar tends to be the least pleasant. Average highs run from 2°C (35°F) in January to 22°C (72°F) in July.
What is the rainiest month in Appenzell Ausserrhoden?
August is the wettest month, with about 166 mm (6.5 in) of rain on average. February is the driest, with about 77 mm (3.0 in).
What is the hottest month in Appenzell Ausserrhoden?
July is the warmest, with average highs of 22°C (72°F) and lows of 14°C (57°F). January is the coolest, with highs of 2°C (35°F) and lows of -4°C (24°F).
Sources: 2001–2025 monthly averages from NASA POWER (MERRA-2 reanalysis for Herisau), forecast and current conditions from Open-Meteo. Page updated . How we rate months