Juneau, AK 14-Day Forecast
Alaska, United States 🇺🇸
53°
Patchy rain nearby right now
Today: high 54°, low 46°
Updated just now
Juneau weather for the next 14 days
Wednesday, September 16
Light rain shower High 53° Low 44°Precipitation
90%
· 0.19 in
Max wind
8 mph
Humidity
96%
UV index
0 - Low
Sunrise / sunset
06:29 AM / 07:15 PM
Thursday, September 17
Patchy rain nearby High 51° Low 43°Precipitation
71%
· 0.03 in
Max wind
4 mph
Humidity
89%
UV index
2 - Low
Sunrise / sunset
06:31 AM / 07:12 PM
Friday, September 18
Light rain shower High 48° Low 43°Precipitation
95%
· 1.88 in
Max wind
6 mph
Humidity
99%
UV index
0 - Low
Sunrise / sunset
06:34 AM / 07:09 PM
Saturday, September 19
Light rain shower High 46° Low 43°Precipitation
95%
· 1.35 in
Max wind
8 mph
Humidity
99%
UV index
0 - Low
Sunrise / sunset
06:36 AM / 07:06 PM
Sunday, September 20
Light rain shower High 44° Low 43°Precipitation
94%
· 1.91 in
Max wind
8 mph
Humidity
98%
UV index
2 - Low
Sunrise / sunset
06:38 AM / 07:03 PM
Monday, September 21
Light rain shower High 46° Low 41°Precipitation
92%
· 0.49 in
Max wind
6 mph
Humidity
93%
UV index
2 - Low
Sunrise / sunset
06:40 AM / 07:00 PM
Tuesday, September 22
Light rain shower High 42° Low 36°Precipitation
93%
· 0.38 in
Max wind
8 mph
Humidity
95%
UV index
2 - Low
Sunrise / sunset
06:42 AM / 06:58 PM
Wednesday, September 23
Light rain shower High 44° Low 37°Precipitation
89%
· 0.37 in
Max wind
7 mph
Humidity
90%
UV index
2 - Low
Sunrise / sunset
06:44 AM / 06:55 PM
Thursday, September 24
Patchy rain nearby High 48° Low 41°Precipitation
36%
· 0.01 in
Max wind
4 mph
Humidity
84%
UV index
3 - Moderate
Sunrise / sunset
06:47 AM / 06:52 PM
Friday, September 25
Overcast High 49° Low 41°Precipitation
17%
· 0.0 in
Max wind
3 mph
Humidity
68%
UV index
2 - Low
Sunrise / sunset
06:49 AM / 06:49 PM
Saturday, September 26
Overcast High 48° Low 42°Precipitation
71%
· 0.11 in
Max wind
5 mph
Humidity
68%
UV index
2 - Low
Sunrise / sunset
06:51 AM / 06:46 PM
Sunday, September 27
Fog High 47° Low 41°Precipitation
87%
· 0.11 in
Max wind
5 mph
Humidity
96%
UV index
2 - Low
Sunrise / sunset
06:53 AM / 06:43 PM
Monday, September 28
Light rain shower High 46° Low 40°Precipitation
95%
· 0.53 in
Max wind
6 mph
Humidity
97%
UV index
2 - Low
Sunrise / sunset
06:55 AM / 06:40 PM
Juneau 14-day outlook: the story
The warmest day of Juneau's 14-day outlook is Tuesday, September 15 with a high near 54°F (12°C); the coolest night comes Tuesday, September 22, dipping to 36°F (2°C). Temperatures hold fairly steady from week to week. Highs over the next two weeks average 49°F (9°C), about 7°F (4°C) below the typical September high of 56°F (14°C).
Precipitation is most likely on Tuesday 15, Wednesday 16, Thursday 17, Friday 18 and beyond; the wettest day looks like Sunday, September 20 with about 1.91 in (48.4 mm) expected. For the weekend, expect Saturday 46°F (8°C) and light rain shower / Sunday 44°F (7°C) and light rain shower.
For typical conditions month by month, see the Juneau climate & average temperatures guide.
Juneau forecast questions
Will it rain in Juneau this week?
The forecast currently shows meaningful precipitation chances on 12 of the next 14 days, peaking around Sunday, September 20.
What will be the warmest day in Juneau over the next 14 days?
Tuesday, September 15, with a forecast high near 54°F (12°C).
How accurate is a 14-day forecast for Juneau?
Days 1-3 are highly reliable, days 4-7 capture the overall pattern well, and days 8-14 indicate trends rather than exact figures - check back as the date approaches; this page refreshes throughout the day.
Average temperatures in Juneau by month
| Month | High | Low | Rain days | Precipitation | Sunshine | Humidity |
|---|---|---|---|---|---|---|
| January | 32° | 25° | 20 | 12.7 in | 2.2 h/day | 77% |
| February | 31° | 24° | 17 | 8.4 in | 4.2 h/day | 74% |
| March | 36° | 28° | 18 | 7.4 in | 6.0 h/day | 74% |
| April | 43° | 33° | 18 | 7.6 in | 7.4 h/day | 78% |
| May | 54° | 41° | 16 | 7.4 in | 9.4 h/day | 79% |
| June | 61° | 50° | 19 | 6.6 in | 9.4 h/day | 82% |
| July | 64° | 54° | 18 | 9.9 in | 8.5 h/day | 86% |
| August | 63° | 53° | 19 | 13.8 in | 7.8 h/day | 87% |
| September | 56° | 47° | 21 | 15.5 in | 5.8 h/day | 86% |
| October | 46° | 38° | 21 | 14.9 in | 4.0 h/day | 84% |
| November | 36° | 29° | 22 | 11.9 in | 2.3 h/day | 79% |
| December | 32° | 25° | 22 | 12.6 in | 1.6 h/day | 79% |
14-day forecasts nearby