Hilo, HI 14-Day Forecast
Hawaii, United States 🇺🇸
78°
Patchy rain nearby right now
Today: high 78°, low 72°
Updated just now
Hilo weather for the next 14 days
Friday, August 7
Patchy rain nearby High 79° Low 69°Precipitation
57%
· 0.05 in
Max wind
10 mph
Humidity
77%
UV index
11 - Extreme
Sunrise / sunset
05:58 AM / 06:53 PM
Saturday, August 8
Patchy rain nearby High 80° Low 72°Precipitation
76%
· 0.23 in
Max wind
10 mph
Humidity
79%
UV index
13 - Extreme
Sunrise / sunset
05:58 AM / 06:53 PM
Sunday, August 9
Light rain shower High 79° Low 73°Precipitation
87%
· 1.15 in
Max wind
8 mph
Humidity
86%
UV index
12 - Extreme
Sunrise / sunset
05:58 AM / 06:52 PM
Monday, August 10
Patchy rain nearby High 80° Low 72°Precipitation
73%
· 0.12 in
Max wind
8 mph
Humidity
80%
UV index
11 - Very High
Sunrise / sunset
05:59 AM / 06:52 PM
Tuesday, August 11
Patchy rain nearby High 79° Low 71°Precipitation
56%
· 0.04 in
Max wind
10 mph
Humidity
77%
UV index
6 - High
Sunrise / sunset
05:59 AM / 06:51 PM
Wednesday, August 12
Patchy rain nearby High 80° Low 70°Precipitation
59%
· 0.07 in
Max wind
10 mph
Humidity
75%
UV index
7 - High
Sunrise / sunset
05:59 AM / 06:50 PM
Thursday, August 13
Patchy rain nearby High 80° Low 72°Precipitation
64%
· 0.07 in
Max wind
11 mph
Humidity
77%
UV index
6 - High
Sunrise / sunset
06:00 AM / 06:50 PM
Friday, August 14
Patchy rain nearby High 79° Low 71°Precipitation
69%
· 0.09 in
Max wind
12 mph
Humidity
77%
UV index
6 - High
Sunrise / sunset
06:00 AM / 06:49 PM
Saturday, August 15
Patchy rain nearby High 78° Low 72°Precipitation
77%
· 0.3 in
Max wind
13 mph
Humidity
77%
UV index
6 - High
Sunrise / sunset
06:00 AM / 06:48 PM
Sunday, August 16
Light rain shower High 77° Low 73°Precipitation
84%
· 0.42 in
Max wind
9 mph
Humidity
82%
UV index
6 - High
Sunrise / sunset
06:01 AM / 06:48 PM
Monday, August 17
Patchy rain nearby High 79° Low 73°Precipitation
90%
· 2.19 in
Max wind
9 mph
Humidity
90%
UV index
6 - High
Sunrise / sunset
06:01 AM / 06:47 PM
Tuesday, August 18
Light rain shower High 76° Low 72°Precipitation
90%
· 0.64 in
Max wind
8 mph
Humidity
89%
UV index
5 - Moderate
Sunrise / sunset
06:01 AM / 06:46 PM
Wednesday, August 19
Patchy rain nearby High 78° Low 73°Precipitation
77%
· 0.14 in
Max wind
7 mph
Humidity
82%
UV index
6 - High
Sunrise / sunset
06:01 AM / 06:46 PM
Hilo 14-day outlook: the story
The warmest day of Hilo's 14-day outlook is Saturday, August 8 with a high near 80°F (27°C); the coolest night comes Friday, August 7, dipping to 69°F (21°C). Temperatures hold fairly steady from week to week. Highs over the next two weeks average 79°F (26°C), right in line with the typical August high of 80°F (27°C).
Precipitation is most likely on Thursday 6, Friday 7, Saturday 8, Sunday 9 and beyond; the wettest day looks like Monday, August 17 with about 2.19 in (55.5 mm) expected. For the weekend, expect Saturday 80°F (27°C) and patchy rain nearby / Sunday 79°F (26°C) and light rain shower.
For typical conditions month by month, see the Hilo climate & average temperatures guide.
Hilo forecast questions
Will it rain in Hilo this week?
The forecast currently shows meaningful precipitation chances on 14 of the next 14 days, peaking around Monday, August 17.
What will be the warmest day in Hilo over the next 14 days?
Saturday, August 8, with a forecast high near 80°F (27°C).
How accurate is a 14-day forecast for Hilo?
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 Hilo by month
| Month | High | Low | Rain days | Precipitation | Sunshine | Humidity |
|---|---|---|---|---|---|---|
| January | 76° | 65° | 15 | 5.7 in | 9.7 h/day | 79% |
| February | 75° | 65° | 20 | 8.5 in | 9.3 h/day | 80% |
| March | 75° | 66° | 23 | 9.9 in | 8.6 h/day | 82% |
| April | 76° | 67° | 24 | 9.3 in | 9.8 h/day | 82% |
| May | 77° | 68° | 26 | 8.0 in | 10.4 h/day | 82% |
| June | 78° | 69° | 23 | 5.1 in | 11.7 h/day | 82% |
| July | 80° | 70° | 27 | 6.6 in | 11.7 h/day | 82% |
| August | 80° | 71° | 26 | 9.1 in | 11.0 h/day | 83% |
| September | 80° | 71° | 24 | 5.5 in | 10.9 h/day | 81% |
| October | 80° | 70° | 22 | 8.5 in | 10.0 h/day | 81% |
| November | 78° | 68° | 22 | 9.4 in | 9.1 h/day | 82% |
| December | 76° | 66° | 22 | 8.0 in | 8.8 h/day | 82% |
14-day forecasts nearby