Hourly Weather Forecast for Nagano, Sanjo, Niigata, Japan - The Weather Channel | Weather.com

Advertisement

Advertisement

Advertisement

Advertisement

Hourly Weather-

As of 6:47 pm JST

Dense Fog Advisory

Monday, March 16

7 pm

Mostly Clear

39°

2%

WSW 2 mph

Mostly Clear

Feels Like39°
WindWSW 2 mph
Humidity72%
UV Index0 of 11
Cloud Cover20%
Precip Amount0 in

7:15 pm

Clear

38°

2%

WSW 2 mph

7:30 pm

Mostly Clear

38°

2%

SW 2 mph

8 pm

Partly Cloudy

37°

2%

S 2 mph

Partly Cloudy

Feels Like37°
WindS 2 mph
Humidity77%
UV Index0 of 11
Cloud Cover30%
Precip Amount0 in

9 pm

Partly Cloudy

36°

2%

S 2 mph

Partly Cloudy

Feels Like36°
WindS 2 mph
Humidity78%
UV Index0 of 11
Cloud Cover36%
Precip Amount0 in

10 pm

Mostly Cloudy

34°

2%

SSE 3 mph

Mostly Cloudy

Feels Like34°
WindSSE 3 mph
Humidity82%
UV Index0 of 11
Cloud Cover64%
Precip Amount0 in

11 pm

Cloudy

33°

2%

SSE 3 mph

Cloudy

Feels Like30°
WindSSE 3 mph
Humidity84%
UV Index0 of 11
Cloud Cover80%
Precip Amount0 in

Tuesday, March 17

12 am

Cloudy

33°

2%

SSE 4 mph

Cloudy

Feels Like30°
WindSSE 4 mph
Humidity84%
UV Index0 of 11
Cloud Cover84%
Precip Amount0 in

Advertisement

1 am

Mostly Cloudy

33°

3%

SSE 4 mph

Mostly Cloudy

Feels Like29°
WindSSE 4 mph
Humidity85%
UV Index0 of 11
Cloud Cover76%
Precip Amount0 in

2 am

Mostly Cloudy

33°

6%

SSE 4 mph

Mostly Cloudy

Feels Like29°
WindSSE 4 mph
Humidity84%
UV Index0 of 11
Cloud Cover77%
Precip Amount0 in

3 am

Mostly Cloudy

32°

6%

SSE 3 mph

Mostly Cloudy

Feels Like29°
WindSSE 3 mph
Humidity85%
UV Index0 of 11
Cloud Cover76%
Precip Amount0 in

4 am

Cloudy

32°

6%

SSE 4 mph

Cloudy

Feels Like28°
WindSSE 4 mph
Humidity84%
UV Index0 of 11
Cloud Cover88%
Precip Amount0 in

5 am

Cloudy

32°

6%

SSE 3 mph

Cloudy

Feels Like29°
WindSSE 3 mph
Humidity84%
UV Index0 of 11
Cloud Cover93%
Precip Amount0 in

6 am

Cloudy

32°

6%

SSE 3 mph

Cloudy

Feels Like29°
WindSSE 3 mph
Humidity84%
UV Index0 of 11
Cloud Cover84%
Precip Amount0 in

7 am

Cloudy

34°

5%

SSE 3 mph

Cloudy

Feels Like34°
WindSSE 3 mph
Humidity81%
UV Index0 of 11
Cloud Cover82%
Precip Amount0 in

8 am

Mostly Cloudy

38°

3%

SSW 3 mph

Mostly Cloudy

Feels Like38°
WindSSW 3 mph
Humidity71%
UV Index1 of 11
Cloud Cover62%
Precip Amount0 in

9 am

Partly Cloudy

42°

1%

W 4 mph

Partly Cloudy

Feels Like40°
WindW 4 mph
Humidity60%
UV Index2 of 11
Cloud Cover58%
Rain Amount0 in

10 am

Partly Cloudy

44°

1%

W 5 mph

Partly Cloudy

Feels Like42°
WindW 5 mph
Humidity54%
UV Index4 of 11
Cloud Cover45%
Rain Amount0 in

11 am

Mostly Sunny

47°

0%

W 6 mph

Mostly Sunny

Feels Like44°
WindW 6 mph
Humidity47%
UV Index5 of 11
Cloud Cover25%
Rain Amount0 in

12 pm

Mostly Sunny

48°

0%

WNW 7 mph

Mostly Sunny

Feels Like45°
WindWNW 7 mph
Humidity46%
UV Index6 of 11
Cloud Cover27%
Rain Amount0 in

Advertisement

1 pm

Mostly Sunny

49°

0%

WNW 7 mph

Mostly Sunny

Feels Like46°
WindWNW 7 mph
Humidity44%
UV Index5 of 11
Cloud Cover20%
Rain Amount0 in

2 pm

Sunny

49°

0%

WNW 8 mph

Sunny

Feels Like45°
WindWNW 8 mph
Humidity44%
UV Index4 of 11
Cloud Cover15%
Rain Amount0 in

3 pm

Mostly Sunny

49°

0%

NW 8 mph

Mostly Sunny

Feels Like45°
WindNW 8 mph
Humidity45%
UV Index2 of 11
Cloud Cover20%
Rain Amount0 in

4 pm

Sunny

47°

0%

NW 8 mph

Sunny

Feels Like44°
WindNW 8 mph
Humidity49%
UV Index1 of 11
Cloud Cover14%
Rain Amount0 in

5 pm

Mostly Sunny

45°

1%

NNW 6 mph

Mostly Sunny

Feels Like41°
WindNNW 6 mph
Humidity56%
UV Index0 of 11
Cloud Cover27%
Rain Amount0 in

6 pm

Partly Cloudy

42°

3%

NNE 5 mph

Partly Cloudy

Feels Like39°
WindNNE 5 mph
Humidity63%
UV Index0 of 11
Cloud Cover38%
Rain Amount0 in

7 pm

Clear

39°

5%

NE 3 mph

Clear

Feels Like37°
WindNE 3 mph
Humidity71%
UV Index0 of 11
Cloud Cover17%
Precip Amount0 in

8 pm

Clear

36°

5%

ESE 3 mph

Clear

Feels Like36°
WindESE 3 mph
Humidity76%
UV Index0 of 11
Cloud Cover8%
Precip Amount0 in

9 pm

Clear

35°

6%

ESE 4 mph

Clear

Feels Like32°
WindESE 4 mph
Humidity79%
UV Index0 of 11
Cloud Cover5%
Precip Amount0 in

10 pm

Clear

33°

6%

ESE 4 mph

Clear

Feels Like29°
WindESE 4 mph
Humidity83%
UV Index0 of 11
Cloud Cover8%
Precip Amount0 in

11 pm

Clear

31°

6%

ESE 4 mph

Clear

Feels Like28°
WindESE 4 mph
Humidity84%
UV Index0 of 11
Cloud Cover7%
Precip Amount0 in

Wednesday, March 18

12 am

Clear

31°

6%

ESE 4 mph

Clear

Feels Like27°
WindESE 4 mph
Humidity83%
UV Index0 of 11
Cloud Cover3%
Precip Amount0 in

Advertisement

1 am

Clear

30°

5%

ESE 4 mph

Clear

Feels Like26°
WindESE 4 mph
Humidity82%
UV Index0 of 11
Cloud Cover2%
Precip Amount0 in

2 am

Clear

29°

4%

ESE 4 mph

Clear

Feels Like25°
WindESE 4 mph
Humidity81%
UV Index0 of 11
Cloud Cover1%
Precip Amount0 in

3 am

Clear

29°

4%

ESE 4 mph

Clear

Feels Like25°
WindESE 4 mph
Humidity80%
UV Index0 of 11
Cloud Cover2%
Precip Amount0 in

4 am

Partly Cloudy

29°

4%

ESE 4 mph

Partly Cloudy

Feels Like24°
WindESE 4 mph
Humidity80%
UV Index0 of 11
Cloud Cover30%
Precip Amount0 in

5 am

Partly Cloudy

28°

4%

ESE 4 mph

Partly Cloudy

Feels Like24°
WindESE 4 mph
Humidity78%
UV Index0 of 11
Cloud Cover39%
Precip Amount0 in

6 am

Partly Cloudy

29°

3%

ESE 4 mph

Partly Cloudy

Feels Like24°
WindESE 4 mph
Humidity77%
UV Index0 of 11
Cloud Cover51%
Precip Amount0 in

7 am

Mostly Cloudy

32°

2%

ESE 4 mph

Mostly Cloudy

Feels Like28°
WindESE 4 mph
Humidity72%
UV Index0 of 11
Cloud Cover68%
Precip Amount0 in

8 am

Cloudy

38°

0%

ESE 4 mph

Cloudy

Feels Like35°
WindESE 4 mph
Humidity60%
UV Index1 of 11
Cloud Cover86%
Precip Amount0 in

9 am

Cloudy

43°

0%

E 4 mph

Cloudy

Feels Like41°
WindE 4 mph
Humidity52%
UV Index1 of 11
Cloud Cover92%
Rain Amount0 in

10 am

Cloudy

48°

0%

E 3 mph

Cloudy

Feels Like48°
WindE 3 mph
Humidity47%
UV Index3 of 11
Cloud Cover83%
Rain Amount0 in

11 am

Cloudy

52°

0%

E 4 mph

Cloudy

Feels Like52°
WindE 4 mph
Humidity43%
UV Index2 of 11
Cloud Cover88%
Rain Amount0 in

12 pm

Cloudy

54°

0%

NNE 4 mph

Cloudy

Feels Like53°
WindNNE 4 mph
Humidity42%
UV Index2 of 11
Cloud Cover89%
Rain Amount0 in

Advertisement

1 pm

Cloudy

55°

0%

N 4 mph

Cloudy

Feels Like54°
WindN 4 mph
Humidity44%
UV Index2 of 11
Cloud Cover94%
Rain Amount0 in

2 pm

Cloudy

55°

0%

NNW 4 mph

Cloudy

Feels Like54°
WindNNW 4 mph
Humidity46%
UV Index2 of 11
Cloud Cover96%
Rain Amount0 in

3 pm

Cloudy

54°

1%

N 4 mph

Cloudy

Feels Like54°
WindN 4 mph
Humidity51%
UV Index1 of 11
Cloud Cover95%
Rain Amount0 in

4 pm

Cloudy

53°

0%

NNE 4 mph

Cloudy

Feels Like52°
WindNNE 4 mph
Humidity55%
UV Index0 of 11
Cloud Cover95%
Rain Amount0 in

5 pm

Cloudy

51°

1%

NE 4 mph

Cloudy

Feels Like49°
WindNE 4 mph
Humidity62%
UV Index0 of 11
Cloud Cover95%
Rain Amount0 in

6 pm

Cloudy

49°

2%

E 4 mph

Cloudy

Feels Like48°
WindE 4 mph
Humidity66%
UV Index0 of 11
Cloud Cover88%
Rain Amount0 in

Advertisement

Radar

© 2026 Mapbox © OpenStreetMap|Improve this map

Lonely Planet

7 Top Hikes In Kyoto For Scenic Views And Cultural Encounters

10 Of The Best Places For Stargazing In The USA

16 Of The Best Things To Do In London

The Best Time To Visit Europe

Advertisement

Advertisement

Don't Miss

Another Severe Weather Outbreak With Widespread Damaging Winds, Tornadoes In East Today

A Major Winter Storm Is Bringing Blizzard Conditions And Record Snow

Winter Storm, Tornado Threat, Heat, Fires, Floods Hit The US At Once

Winter Storm Iona Buries Upper Midwest In Heavy Snow

Advertisement

We Love Our Critters

Why Frogs Croak Faster In Warm Water: A Survival Strategy

Retreat! Penguins’ Instant Regret After Jumping On Ice Floe

Newly Identified Tick-Borne Bacterium In US Dogs

Hibernating Bears Wake Up From Winter

Travel

And The Best State For An Adventure Vacation Is ...

California Wildflower Superblooms Are Back In 2026

3 Big Changes Coming To National Parks In 2026

‘Rare And Remarkable’: Lake Superior Ice Caves Reopen

Seasonal Hub

Leaves Increasing On Trees In The South, Pollen On The Rise

When Are The Average Last Freezes In The US?

Allergy Season Grows Longer – Especially In These Places

Record Warmth Is Almost Tripling Record Cold This Year

Advertisement