As of 20:38 BST

Weather in Hermiston

+16°Weather now

Hermiston, Saturday, 8 August, 20:38

Overcast. Feels like 16°C. High 20°C, low 13°C.

Pressure1013 mb
Wind6 mph W
Humidity76%
Visibility6.2 mi
Dew point12°C
Sun, 09+12 ° /18 °1.5Light rain
+18 °Light rain

Hermiston, Sunday, 9 August

Light rain. High 18°C, low 12°C.

Pressure1010 mb
Wind12 mph SW
Humidity86%
Visibility6.2 mi
Dew point11°C
Mon, 10+10 ° /20 °0Mainly clear
+20 °Mainly clear

Hermiston, Monday, 10 August

Mainly clear. High 20°C, low 10°C.

Pressure1020 mb
Wind5 mph W
Humidity53%
Visibility6.2 mi
Dew point8°C
Tue, 11+10 ° /22 °0Overcast
+22 °Overcast

Hermiston, Tuesday, 11 August

Overcast. High 22°C, low 10°C.

Pressure1024 mb
Wind2 mph SE
Humidity57%
Visibility6.2 mi
Dew point10°C
Wed, 12+15 ° /24 °0Partly cloudy
+24 °Partly cloudy

Hermiston, Wednesday, 12 August

Partly cloudy. High 24°C, low 15°C.

Pressure1020 mb
Wind11 mph SW
Humidity50%
Visibility6.2 mi
Dew point12°C
Thu, 13+16 ° /26 °0Overcast
+26 °Overcast

Hermiston, Thursday, 13 August

Overcast. High 26°C, low 16°C.

Pressure1018 mb
Wind8 mph SW
Humidity52%
Visibility—
Dew point13°C
Fri, 14+16 ° /24 °7.9Rain
+24 °Rain

Hermiston, Friday, 14 August

Rain. High 24°C, low 16°C.

Pressure1015 mb
Wind6 mph NE
Humidity66%
Visibility—
Dew point16°C
Sat, 15+14 ° /16 °0.9Light rain
+16 °Light rain

Hermiston, Saturday, 15 August

Light rain. High 16°C, low 14°C.

Pressure1019 mb
Wind7 mph E
Humidity89%
Visibility—
Dew point13°C
Sun, 16+13 ° /18 °1Light rain
+18 °Light rain

Hermiston, Sunday, 16 August

Light rain. High 18°C, low 13°C.

Pressure1018 mb
Wind7 mph E
Humidity67%
Visibility—
Dew point12°C
Mon, 17+11 ° /14 °4.2Light rain
+14 °Light rain

Hermiston, Monday, 17 August

Light rain. High 14°C, low 11°C.

Pressure1008 mb
Wind11 mph W
Humidity96%
Visibility—
Dew point12°C
Tue, 18+11 ° /17 °0.5Light rain
+17 °Light rain

Hermiston, Tuesday, 18 August

Light rain. High 17°C, low 11°C.

Pressure1008 mb
Wind15 mph W
Humidity57%
Visibility—
Dew point8°C
Wed, 19+11 ° /17 °0.3Light rain
+17 °Light rain

Hermiston, Wednesday, 19 August

Light rain. High 17°C, low 11°C.

Pressure1008 mb
Wind17 mph W
Humidity64%
Visibility—
Dew point9°C
Thu, 20+11 ° /19 °1.2Light rain
+19 °Light rain

Hermiston, Thursday, 20 August

Light rain. High 19°C, low 11°C.

Pressure1010 mb
Wind12 mph W
Humidity51%
Visibility—
Dew point7°C
Fri, 21+10 ° /14 °2.9Light rain
+14 °Light rain

Hermiston, Friday, 21 August

Light rain. High 14°C, low 10°C.

Pressure1017 mb
Wind6 mph NE
Humidity95%
Visibility—
Dew point12°C
Sat, 22+10 ° /17 °0Overcast
+17 °Overcast

Hermiston, Saturday, 22 August

Overcast. High 17°C, low 10°C.

Pressure1023 mb
Wind7 mph E
Humidity61%
Visibility—
Dew point8°C
Sun, 23+10 ° /18 °0.5Light rain
+18 °Light rain

Hermiston, Sunday, 23 August

Light rain. High 18°C, low 10°C.

Pressure1017 mb
Wind12 mph SW
Humidity64%
Visibility—
Dew point10°C

Questions about the month ahead

How accurate is a month-long forecast?

The first 16 days come from weather models — highly reliable for the first 3–5 days, gradually less so after that. Days 17 to 30 for Hermiston are built from climate averages over the last 60 years, so they show typical weather for those dates rather than a specific forecast.

What does "above average" mean?

We compare the forecast with the climate average for exactly the same calendar days, calculated from 60 years of observations. The difference shows how the coming month compares with a typical one.

Where do the 66-year records come from?

These are real historical extremes recorded in Hermiston since 1960: the highest and lowest temperature for each calendar date, with the year it happened.

How often is the 30-day forecast updated?

The forecast portion refreshes every hour. The climate portion is based on long-term data and stays stable.