Hilo, HI Weather Forecast & Alerts

Current conditions, 5-day forecast, and active NWS weather alerts for Hilo, HI.

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Current Conditions — Hilo, HI

HILO (PHTO)

Cloudy

NULL F
Humidity:%
Wind Speed: mph
Barometer: in
Dewpoint: F
Visibility:8.00 mi
Precip:Trace
Heat Index:NA
Wind Chill:NA
May 9 2026, 06:00 AM HST
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5-Day Forecast — Hilo, HI

Saturday

High 80 °F
Forecast Missing
Saturday
Night
Low 66 °F
Forecast Missing
Sunday

High 80 °F
Forecast Missing
Sunday
Night
Low 66 °F
Forecast Missing
Monday

High 78 °F
Forecast Missing
Monday
Night
Low 66 °F
Forecast Missing
Tuesday

High 78 °F
Forecast Missing
Tuesday
Night
Low 66 °F
Forecast Missing
Wednesday

High 77 °F
Forecast Missing

Detailed Forecast — Hilo, HI

Saturday
Forecast Missing. High near 80°F. Wind 7 to 9 mph, with gusts as high as 12 mph.
Saturday Night
Forecast Missing. Low around 66°F. Wind 3 to 5 mph, with gusts as high as 5 mph.
Sunday
Forecast Missing. High near 80°F. Wind 5 to 9 mph, with gusts as high as 12 mph.
Sunday Night
Forecast Missing. Low around 66°F. Wind 5 to 8 mph, with gusts as high as 9 mph.
Monday
Forecast Missing. High near 78°F. Wind 8 to 9 mph, with gusts as high as 12 mph.
Monday Night
Forecast Missing. Low around 66°F. Wind 6 to 7 mph.
Tuesday
Forecast Missing. High near 78°F. Wind 6 to 9 mph.
Tuesday Night
Forecast Missing. Low around 66°F. Wind 3 to 6 mph.
Wednesday
Forecast Missing. High near 77°F. Wind 5 to 8 mph.
Wednesday Night
Forecast Missing. Low around 66°F. Wind 1 to 3 mph.
Thursday
Forecast Missing. High near 77°F. Wind 3 to 7 mph.
Thursday Night
Forecast Missing. Low around 66°F. Wind 1 to 2 mph.
Friday
Forecast Missing. High near 77°F. Wind 2 to 6 mph.
HI Radar
Current Radar • HI
Day 1 Outlook • May 9, 2026

Observation History — Hilo, HI

Time Wind
(mph)		 Vis
(mi)		 Weather Precip (in) Temperature (F) Relative
Humidity		 Wind
Chill
(F)		 Heat
Index
(F)		 Pressure
Air Dwpt altimeter
(in)		 sea level
(mb)
06:00 AM HST 8.00 Cloudy Trace NULL % NA NA M
05:53 AM HST 10.00 Light Rain 00.05 NULL % NA NA M
05:39 AM HST 4.00 Rain and Fog/Mist 00.03 NULL % NA NA M
04:53 AM HST 10.00 Mostly Cloudy -- NULL % NA NA M
03:53 AM HST 10.00 Mostly Cloudy -- NULL % NA NA M
02:53 AM HST SW 4.7 10.00 Mostly Cloudy -- 71.1 68.0 90% NA 72.1 30.00 1015.9
01:53 AM HST 10.00 Partly Cloudy -- NULL % NA NA M
01:02 AM HST 9.00 Cloudy -- NULL % NA NA M
12:53 AM HST 9.00 Cloudy -- NULL % NA NA M
11:53 PM HST SW 5.8 10.00 Cloudy -- 73.0 69.1 87% NA 74.1 30.06 1018.0
10:53 PM HST 5.8 10.00 Cloudy Trace 72.0 70.0 93% NA 73.2 30.07 1018.3
09:53 PM HST W 5.8 8.00 Light Rain 00.19 73.9 71.1 91% NA 75.4 30.06 1018.0
09:34 PM HST 2.50 Heavy Rain and Fog/Mist 00.07 NULL % NA NA M
09:01 PM HST 6.00 Light Rain and Fog/Mist 00.06 NULL % NA NA M
08:21 PM HST 10.00 Cloudy -- NULL % NA NA M
07:53 PM HST 10.00 Cloudy -- NULL % NA NA M
07:12 PM HST 10.00 Mostly Cloudy -- NULL % NA NA M
07:04 PM HST 10.00 Mostly Cloudy -- NULL % NA NA M
06:53 PM HST 5.8 10.00 Mostly Cloudy -- 77.0 70.0 79% NA 78.1 30.02 1016.6
06:21 PM HST 10.00 Cloudy -- NULL % NA NA M
05:53 PM HST 5.8 10.00 Cloudy -- 77.0 70.0 79% NA 78.1 30.00 1015.9
05:13 PM HST 10.00 Cloudy -- NULL % NA NA M
04:53 PM HST 8.1 10.00 Cloudy -- 78.1 71.1 79% NA 79.3 29.99 1015.6
04:19 PM HST 10.00 Cloudy -- NULL % NA NA M

Regional Weather Observation

HILO (PHTO)

Cloudy
NULL F

BRADSHAW AAF/HAW (PHSF)

Clear
50.4 F

KAILUA/KONA (PHKO)

Mostly Clear
75.9 F

(PHJH)


F

(PHNY)


F

KAHULUI (PHOG)

Mostly Clear
71.1 F
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