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WeatherCompare

Nagano weather for today, tomorrow and the next 14 days, compared across three independent forecast sources so you can see where they agree before you plan your day. Right now it is 17°C and cloudy in Nagano. Tomorrow's forecast: highs of 27°C, lows of 12°C with a 100% chance of rain.

Sources: Open-Meteo, OpenWeather, WeatherAPI · Updated every 12 hours

NaganoJapan

Updated 09:38 AM

17°

Cloudy

Feels like 18°

Humidity
100%
Wind
7 km/h
Pressure
1020 hPa
Visibility
10 km
UV Index
0
Precipitation
100%
Sunrise
05:58 AM
Sunset
05:05 PM

Forecast Comparison

See how independent weather sources forecast the same location right now.

OpenWeatherMap

17°

Cloudy

Precipitation
100%
Wind
7 km/h
Source: OpenWeatherMap
WeatherAPI.com

18°

Rain

Precipitation
95%
Wind
4 km/h
Source: WeatherAPI.com
Open-Meteo

19°

Rain

Precipitation
73%
Wind
7 km/h
Source: Open-Meteo

Forecast agreement

Sources show some variation

Temperature range

17° – 19°

Rain probability

73% – 100%

Wind speed

4 km/h – 7 km/h

Temperature by provider

Hourly forecast

12 PM19°100%8 km/h
3 PM21°100%10 km/h
6 PM21°60%1 km/h
9 PM19°24%4 km/h
12 AM19°0%5 km/h
3 AM19°26%5 km/h
6 AM18°0%5 km/h
9 AM23°0%8 km/h
12 PM27°0%20 km/h
3 PM26°29%5 km/h
6 PM24°100%6 km/h
9 PM21°100%3 km/h
12 AM18°100%8 km/h
3 AM17°100%9 km/h
6 AM12°34%9 km/h
9 AM12°53%10 km/h

16-day forecast

TodayOct 20
19°16°
100% rain
WedOct 21
29°16°
100% rain
ThuOct 22
19°11°
100% rain
FriOct 23
20°7°
0% rain
SatOct 24
17°13°
98% rain
SunOct 25
23°15°
78% rain
MonOct 26
17°16°
79% rain
TueOct 27
16°10°
86% rain
WedOct 28
13°7°
51% rain
ThuOct 29
13°7°
39% rain
FriOct 30
17°8°
20% rain
SatOct 31
19°10°
31% rain
SunNov 1
21°9°
31% rain
MonNov 2
12°3°
35% rain
TueNov 3
14°2°
30% rain
WedNov 4
18°5°
23% rain

Rain forecast

Precipitation probability: 100%

Hourly precipitation timeline

Wind

NESW

Direction: N

Current wind

7 km/h

Gusts

3 km/h

Hourly wind

12 PM8 km/h
3 PM10 km/h
6 PM1 km/h
9 PM4 km/h
12 AM5 km/h
3 AM5 km/h
6 AM5 km/h
9 AM8 km/h
12 PM20 km/h
3 PM5 km/h
6 PM6 km/h
9 PM3 km/h

Daily wind

Tue10 km/h
Wed20 km/h
Thu13 km/h
Fri7 km/h
Sat8 km/h

Weather alerts

No active weather alerts.

Weather map

Nagano this time of year

  • Temperatures are falling — expect highs around 6°C lower by November.
  • Nagano is usually about 2°C cooler than Maebashi, 90 km away, in October.
  • In Nagano, October is mid-autumn.

Planning a trip to Nagano? Save or share this forecast.

Nagano weather overview: climate, seasons and what to expect

Nagano, Japan, sits at approximately 36.65°N, 138.18°E and is home to about 360,000 people. This page compares forecasts from three independent weather providers — Open-Meteo, OpenWeather and WeatherAPI — so you can see at a glance where they agree and where they differ. The data refreshes every 12 hours via ISR.

Climate-wise, Nagano has a continental climate with hot summers and cold winters. Expect the most heat in August (about 28°C by day) and the chilliest nights in January (around -9°C). Most rain falls in July, roughly 200 mm. The nearest places with their own forecast page are Matsumoto (50 km), Maebashi (85 km) and Toyama (86 km).

Frequently asked questions

What is the weather in Nagano today?
Right now Nagano shows cloudy conditions at around 17°C (feels like 18°C), based on OpenWeatherMap. The chance of rain today is about 100%. Compare this with the other sources above for a fuller picture.
What is the weather in Nagano tomorrow?
Tomorrow in Nagano: expect a high of 27°C and a low of 12°C, with a 100% chance of rain. See the hourly breakdown above for more detail.
Will it rain in Nagano today?
The precipitation probability for Nagano is around 100% according to OpenWeatherMap. Check the Rain forecast section for the hour-by-hour breakdown and compare with other sources.
What is the 14-day forecast for Nagano?
The 14-day forecast above shows daily highs, lows and rain probability for Nagano from multiple sources; compare them to see how confident the outlook is.

More weather questions answered →

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