Hilo, HI 14-Day Forecast
Hawaii, United States 🇺🇸
76°
Patchy rain nearby right now
Today: high 80°, low 71°
Updated 5 hours ago
Hilo weather for the next 14 days
Thursday, August 13
Patchy rain nearby High 80° Low 72°Precipitation
64%
· 0.07 in
Max wind
14 mph
Humidity
77%
UV index
13 - Extreme
Sunrise / sunset
06:00 AM / 06:50 PM
Friday, August 14
Patchy rain nearby High 80° Low 72°Precipitation
84%
· 0.47 in
Max wind
17 mph
Humidity
81%
UV index
12 - Extreme
Sunrise / sunset
06:00 AM / 06:49 PM
Saturday, August 15
Heavy rain High 76° Low 73°Precipitation
93%
· 7.9 in
Max wind
46 mph
Humidity
94%
UV index
3 - Low
Sunrise / sunset
06:00 AM / 06:48 PM
Sunday, August 16
Light rain shower High 78° Low 74°Precipitation
90%
· 1.58 in
Max wind
34 mph
Humidity
91%
UV index
6 - High
Sunrise / sunset
06:01 AM / 06:48 PM
Monday, August 17
Light rain shower High 79° Low 72°Precipitation
89%
· 0.48 in
Max wind
9 mph
Humidity
87%
UV index
6 - High
Sunrise / sunset
06:01 AM / 06:47 PM
Tuesday, August 18
Patchy rain nearby High 76° Low 73°Precipitation
66%
· 0.07 in
Max wind
10 mph
Humidity
81%
UV index
5 - Moderate
Sunrise / sunset
06:01 AM / 06:46 PM
Wednesday, August 19
Patchy rain nearby High 77° Low 69°Precipitation
46%
· 0.02 in
Max wind
8 mph
Humidity
79%
UV index
7 - High
Sunrise / sunset
06:01 AM / 06:46 PM
Thursday, August 20
Patchy rain nearby High 79° Low 70°Precipitation
36%
· 0.01 in
Max wind
7 mph
Humidity
76%
UV index
7 - High
Sunrise / sunset
06:02 AM / 06:45 PM
Friday, August 21
Patchy rain nearby High 80° Low 74°Precipitation
77%
· 0.14 in
Max wind
9 mph
Humidity
83%
UV index
6 - High
Sunrise / sunset
06:02 AM / 06:44 PM
Saturday, August 22
Patchy rain nearby High 80° Low 73°Precipitation
71%
· 0.09 in
Max wind
10 mph
Humidity
83%
UV index
6 - High
Sunrise / sunset
06:02 AM / 06:43 PM
Sunday, August 23
Patchy rain nearby High 80° Low 74°Precipitation
72%
· 0.09 in
Max wind
10 mph
Humidity
82%
UV index
6 - High
Sunrise / sunset
06:02 AM / 06:43 PM
Monday, August 24
Patchy rain nearby High 79° Low 73°Precipitation
84%
· 0.44 in
Max wind
10 mph
Humidity
83%
UV index
6 - High
Sunrise / sunset
06:03 AM / 06:42 PM
Tuesday, August 25
Patchy rain nearby High 79° Low 73°Precipitation
68%
· 0.09 in
Max wind
9 mph
Humidity
82%
UV index
6 - High
Sunrise / sunset
06:03 AM / 06:41 PM
Hilo 14-day outlook: the story
The warmest day of Hilo's 14-day outlook is Wednesday, August 12 with a high near 80°F (27°C); the coolest night comes Wednesday, August 19, 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 Wednesday 12, Thursday 13, Friday 14, Saturday 15 and beyond; the wettest day looks like Saturday, August 15 with about 7.9 in (200.7 mm) expected. For the weekend, expect Saturday 76°F (25°C) and heavy rain / Sunday 78°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 12 of the next 14 days, peaking around Saturday, August 15.
What will be the warmest day in Hilo over the next 14 days?
Wednesday, August 12, 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