Weather tomorrow: Hermiston (airport)

Forecast for tomorrow, 28 September: cloudy. The daily air temperature range is 13 to 23 °C. Chance of precipitation tomorrow according to the daily forecast: 1%. Forecast precipitation amount: 0 mm. Wind from the southwest at 7.5 m/s.

monday 28 september

Cloudy

Cloudy, Precipitation probability 1%, Sunrise 06:52, Sunset 18:42, 28.09.2026

+23°

+13°

Sunset 18:42

G/m activity 2

Precipitation probability 1%

Precipitation 0.0 mm

Wind 7.5 m/s

Pressure 990.6 hPa

Index UV 4

Humidity 27%

Sunrise 06:52

Moon Waning Gibbous

Sunrise 06:52

Sunset 18:42

G/m activity 2

Moon Waning Gibbous

Clear
night
+15°
Clear
morning
+13°
Cloudy
day
+20°
Partly cloudy
evening
+21°
Time
Description
Temperature
Precipitation probability
Precipitation
Wind

00:00

Clear

15°

0 %
-

W

1.4 m/s

01:00

Clear

14°

0 %
-

SW

1.1 m/s

02:00

Clear

14°

1 %
-

S

0.8 m/s

03:00

Clear

14°

1 %
-

NW

0.3 m/s

04:00

Clear

14°

1 %
-

S

0.8 m/s

05:00

Clear

13°

1 %
-

S

0.6 m/s

06:00

Clear

13°

1 %
-

SE

0.8 m/s

07:00

Partly cloudy

13°

1 %
-

N

0.3 m/s

08:00

Partly cloudy

14°

1 %
-

NW

1.1 m/s

09:00

Partly cloudy

14°

1 %
-

NW

1.7 m/s

10:00

Partly cloudy

16°

1 %
-

W

1.9 m/s

11:00

Partly cloudy

18°

1 %
-

W

2.5 m/s

12:00

Cloudy

20°

4 %
-

W

3.6 m/s

13:00

Overcast

22°

9 %
-

W

4.7 m/s

14:00

Overcast

22°

1 %
-

W

6.1 m/s

15:00

Partly cloudy

23°

1 %
-

W

6.9 m/s

16:00

Cloudy

22°

1 %
-

W

6.9 m/s

17:00

Partly cloudy

22°

0 %
-

W

7.2 m/s

18:00

Partly cloudy

21°

1 %
-

W

5.6 m/s

19:00

Partly cloudy

20°

1 %
-

SW

5.3 m/s

20:00

Overcast

18°

8 %
-

SW

6.1 m/s

21:00

Partly cloudy

18°

1 %
-

SW

7.2 m/s

22:00

Cloudy

17°

2 %
-

SW

7.8 m/s

23:00

Overcast

16°

10 %
-

SW

8.3 m/s

What is the atmospheric pressure in Hermiston (airport) tomorrow?

Pressure adjusted for location elevation. Location elevation: 195 m relative to sea level

Forecast for 28.09.2026 · Local time

Pressure: 987.9–991.9 hPa.

Minimum: 987.9 hPa17:00–18:00

Maximum: 991.9 hPa08:00–11:00Also at other hours

Largest change over 3 hours: −2.7 hPa · 13:00–16:00
First of 4 intervals with the same change magnitude shown.

hPa · Change over the previous 3 hours

990.6 00:00 —
990.6 01:00 —
990.6 02:00 —
990.6 03:00 0
990.6 04:00 0
990.6 05:00 0
990.6 06:00 0
990.6 07:00 0
991.9 08:00 +1.3
991.9 09:00 +1.3
991.9 10:00 +1.3
991.9 11:00 0
990.6 12:00 −1.3
991.9 13:00 0
990.6 14:00 −1.3
989.3 15:00 −1.3
989.3 16:00 −2.7
987.9 17:00 −2.7
987.9 18:00 −1.3
989.3 19:00 0
990.6 20:00 +2.7
990.6 21:00 +2.7
990.6 22:00 +1.3
989.3 23:00 −1.3

Colours show pressure relative to this day’s range

Lower · 987.9 Scale midpoint · 989.9 Higher · 991.9 Largest change over 3 hours

What is the chance of precipitation in Hermiston (airport) tomorrow?

Chance of precipitation tomorrow according to the daily forecast: 1%.

Precipitation for tomorrow

Hourly precipitation forecast
00:00 Amount of precipitation in millimeters (mm): 0 mm Probability of precipitation in percent (%): 0%
01:00 Amount of precipitation in millimeters (mm): 0 mm Probability of precipitation in percent (%): 0%
02:00 Amount of precipitation in millimeters (mm): 0 mm Probability of precipitation in percent (%): 1%
03:00 Amount of precipitation in millimeters (mm): 0 mm Probability of precipitation in percent (%): 1%
04:00 Amount of precipitation in millimeters (mm): 0 mm Probability of precipitation in percent (%): 1%
05:00 Amount of precipitation in millimeters (mm): 0 mm Probability of precipitation in percent (%): 1%
06:00 Amount of precipitation in millimeters (mm): 0 mm Probability of precipitation in percent (%): 1%
07:00 Amount of precipitation in millimeters (mm): 0 mm Probability of precipitation in percent (%): 1%
08:00 Amount of precipitation in millimeters (mm): 0 mm Probability of precipitation in percent (%): 1%
09:00 Amount of precipitation in millimeters (mm): 0 mm Probability of precipitation in percent (%): 1%
10:00 Amount of precipitation in millimeters (mm): 0 mm Probability of precipitation in percent (%): 1%
11:00 Amount of precipitation in millimeters (mm): 0 mm Probability of precipitation in percent (%): 1%
12:00 Amount of precipitation in millimeters (mm): 0 mm Probability of precipitation in percent (%): 4%
13:00 Amount of precipitation in millimeters (mm): 0 mm Probability of precipitation in percent (%): 9%
14:00 Amount of precipitation in millimeters (mm): 0 mm Probability of precipitation in percent (%): 1%
15:00 Amount of precipitation in millimeters (mm): 0 mm Probability of precipitation in percent (%): 1%
16:00 Amount of precipitation in millimeters (mm): 0 mm Probability of precipitation in percent (%): 1%
17:00 Amount of precipitation in millimeters (mm): 0 mm Probability of precipitation in percent (%): 0%
18:00 Amount of precipitation in millimeters (mm): 0 mm Probability of precipitation in percent (%): 1%
19:00 Amount of precipitation in millimeters (mm): 0 mm Probability of precipitation in percent (%): 1%
20:00 Amount of precipitation in millimeters (mm): 0 mm Probability of precipitation in percent (%): 8%
21:00 Amount of precipitation in millimeters (mm): 0 mm Probability of precipitation in percent (%): 1%
22:00 Amount of precipitation in millimeters (mm): 0 mm Probability of precipitation in percent (%): 2%
23:00 Amount of precipitation in millimeters (mm): 0 mm Probability of precipitation in percent (%): 10%

Hermiston (airport) weather tomorrow: morning, afternoon and evening

Morning: clear, +13 °C. Afternoon: cloudy, +20 °C. Evening: partly cloudy, +21 °C.

According to the hourly forecast, tomorrow's highest temperature is expected at 15:00, at around +23 °C. Times are local.

Tomorrow's strongest winds are expected at 23:00 (from the southwest). The lightest winds are expected at 03:00 (from the northwest); at 07:00 (from the north). Times are local.

Temperature and wind for tomorrow

+15° +14° +13° +14° +20° +23° +21° +18° 1.4 m/s 0.3 m/s 0.8 m/s 1.7 m/s 3.6 m/s 6.9 m/s 5.6 m/s 7.2 m/s
00:00 03:00 06:00 09:00 12:00 15:00 18:00 21:00
- Wind direction and speed, m/s
- Temperature, °C

What geomagnetic activity is forecast for Hermiston (airport) tomorrow?

The highest forecast Kp index for tomorrow is 2.

Magnetic storm tomorrow

00:00 2
03:00 2
06:00 2
09:00 1
12:00 1
15:00 2
18:00 2
21:00 1

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