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Shaded-relief map of Fern Acres, Hawaii: rivers, roads, the city limits and where the water drains.
HAWAII · HAWAII COUNTY

Fern Acres

1,965 people, 1,550 ft above sea level in Hawaii County.

1,550 ftElevation, city center
1,965People, 2024 estimate
7 sq miLand area
Sunny 82°
Sunny now Dew point 69° · SW 3 mph · high 81°
City of Fern Acres River Interstate 2 miles
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The Fern Acres plate. Relief from Copernicus GLO-30; rivers and lakes from USGS NHD; watersheds from the USGS Watershed Boundary Dataset; roads and city limits from Census TIGER 2024.

MILE1
TODAY

Today in Fern Acres

NWS forecast and National Blend of Models · updated 12:00 PM HST
RIGHT NOW Hilo International Airport (PHTO) · 11:53 AM
Sunny
82° Sunny Feels like 85° · high of 81° near 12 PM
WindSW 3 mphno gusts
Humidity65%falling to 65% this afternoon
Pressure30.12 in →steady
Visibility10 mihaze-free
CloudsClear
UV index—no forecast
Dew point 69° · Muggyabout the same for three days
DryComfortableStickyMuggyOppressive
NEXT RAIN
Partly cloudy
Tonight, about 9 PMin about 8 hours · 71% chance · showers
LIKELY AMOUNT—amounts come within 3 days
LAST RAINNov. 120.09 in · 2 dry days
ALERTS & OUTLOOKS
No watches or warnings for Hawaii County
NWS Honolulu and the Storm Prediction Center · checked 12:45 PM
SUN & MOON
↑ 6:28 AM5:41 PM ↓
11 h 13 m of daylight, 1 minute less than yesterday
Waxing crescent, 26% lit. Next full moon: Nov. 24.
AIR & POLLEN
3
GOODAir quality index · fine particles
No pollen source yet.

The next three days, hour by hour

Sky: clear, cloudy, night Rain likely National Blend of Models
SATURDAY, NOV. 14
SUNDAY, NOV. 15
MONDAY, NOV. 16
TUESDAY, NOV. 17
Noon
3p
6p
9p
Mid
3a
6a
9a
Noon
3p
6p
9p
Mid
3a
6a
9a
Noon
3p
6p
9p
Mid
3a
6a
9a
mostly sunny
partly cloudy day
partly cloudy night
showers night
partly cloudy night
partly cloudy night
partly cloudy day
partly cloudy day
partly cloudy day
partly cloudy day
partly cloudy night
partly cloudy night
partly cloudy night
partly cloudy night
partly cloudy day
mostly sunny
mostly sunny
partly cloudy day
partly cloudy night
rain
rain
partly cloudy night
mostly cloudy day
rain
TEMPERATURE °F
81°
73°
81°
71°
82°
72°
CHANCE OF RAIN
71% · 0.06 in Saturday night 50%
WIND, MPH
6
6
3
6
10
7
7
6
7
5
3
4
6
7
7
7
8
7
5
5
6
6
7
7
HOW IT FEELS · DEW POINT
Muggy: dew points 64 to 70°

The next seven days, and how sure we are

Forecast, with the range 8 in 10 ensemble members agree on Normal, about 80° / 68°
SAT Nov. 14 Showers likely Showers likely
81° 71°
70% rain — ENE 6 A
SUN Nov. 15 Chance of showers Chance of showers
83° 69°
50% rain — SW 6 A
MON Nov. 16 Chance of showers Chance of showers
85° 69°
40% rain up to 0.05″ E 7 A
TUE Nov. 17 Showers likely Showers likely
83° 69°
60% rain up to 0.3″ E 9 A
WED Nov. 18 Chance of showers Chance of showers
83° 69°
40% rain up to 0.3″ ENE 9 A
THU Nov. 19 Partly cloudy Partly cloudy
83° 69°
30% rain — ENE 9 A
FRI Nov. 20 Chance of showers Chance of showers
83° 69°
40% rain up to 0.2″ NE 12 A
How sure are we? AModels agree: highs within 4° BSome spread: within 8° CWide spread: check back
Range from the National Blend of Models percentiles · graded on Forecast Scores
AIR MAIL

Where today’s air came from

The air arriving over Fern Acres about 5,000 feet above the ground was over the Pacific south of Hawaii three days ago, about 780 miles back along its path. Most of the nine paths traced from around the city agree. Near the ground the air came from the open Pacific; at 10,000 feet, from the Pacific south of Hawaii. Air off the water carries moisture, which is why it feels humid. Traced back 72 hours through NOAA’s hourly RAP analyses and the GFS beyond them, nine paths at each of three heights.

MILE2
THE GROUND

What Fern Acres stands on

Fern Acres’s center stands about 1,550 ft above sea level. Within three miles the land runs from 1,010 ft to 1,950 ft, a difference of 940 ft: steep hill country. The highest named summit within 15 miles is Kūlani, about 5,500 ft, 14 miles west.

Volcano Golf Course to Hawaiian Beaches, cut in half

A section west to east, 24 miles through the town center
0 ft1,000 ft2,000 ft3,000 ft FERN ACRES1,550 ftHigh point of the line3,940 ftEden Roc1,670 ftHawaiian Acres1,120 ftTiki Gardens660 ftLow pointsea level ← W · Volcano Golf CourseHawaiian Beaches · E →

Heights every 0.1 mile from the Copernicus GLO-90 surface model; vertical exaggeration about 5×.

Heights from Copernicus GLO-90 (a surface model: it includes buildings and tree canopy); summits from USGS GNIS; rivers from USGS NHDPlus HR.
MILE7
ON THE NETWORK

Around Fern Acres on the Forecast Network

Neighboring plates

Hilo HI · 12 MI 12 miles north
FORECASTCITY
Map of Fern Acres, Hawaii. Explore the plate
HAWAII · HAWAII

Fern Acres

1,965 people, 1,550 ft above sea level in Hawaii County.

1,550 ftElevation
1,965People
7 sq miLand
Sunny 82°
SunnyDew point 69°
1

Today in Fern Acres

NEXT 15 HOURS
Now mostly sunny 81° 0%
3p mostly sunny 81° 0%
6p partly cloudy night 77° 8%
9p showers night 75° 31%
12a partly cloudy night 74° 25%
3a partly cloudy night 73° 19%
Partly cloudy
NEXT RAINTonight about 9 PM · 71%
→
Sat70%
Showers likely Showers likely
71
81
A
Sun50%
Chance of showers Chance of showers
69
83
A
Mon40%
Chance of showers Chance of showers
69
85
A
Tue60%
Showers likely Showers likely
69
83
A
Wed40%
Chance of showers Chance of showers
69
83
A
Thu30%
Partly cloudy Partly cloudy
69
83
A
Fri40%
Chance of showers Chance of showers
69
83
A
Letters show how sure the forecast is: A, models agree; B, some spread; C, check back. Sample data.
2

What Fern Acres stands on

Fern Acres’s center stands about 1,550 ft above sea level. Within three miles the land runs from 1,010 ft to 1,950 ft, a difference of 940 ft: steep hill country. The highest named summit within 15 miles is Kūlani, about 5,500 ft, 14 miles west.

Fern Acres, west to east Fern Acres1,550 ft ← WE → 24 miles through the town center; vertical exaggeration about 9×.
Elevation, center1,550 ft
Within 3 miles1,010 to 1,950 ft
Lie of the landSteep hill country (940 ft of relief)
High point nearbyKūlani, 5,500 ft, 14 mi west