As of 20:47 BST

Weather in Clachamish

+14°

Clachamish, Saturday, 8 August, 20:47

Light rain. Feels like 14°C. High 16°C, low 13°C.

Pressure1009 mb

Wind12 mph SW

Humidity95%

Visibility6.2 mi

Dew point13°C

Detailed hourly forecast

Sun, 09+10 ° /16 °

1.2

+16 °

Clachamish, Sunday, 9 August

Light rain. High 16°C, low 10°C.

Pressure1009 mb

Wind13 mph W

Humidity71%

Visibility6.2 mi

Dew point9°C

Mon, 10+8 ° /15 °

+15 °

Clachamish, Monday, 10 August

Overcast. High 15°C, low 8°C.

Pressure1022 mb

Wind6 mph N

Humidity62%

Visibility6.2 mi

Dew point6°C

Tue, 11+10 ° /19 °

+19 °

Clachamish, Tuesday, 11 August

Overcast. High 19°C, low 10°C.

Pressure1021 mb

Wind9 mph S

Humidity61%

Visibility6.2 mi

Dew point9°C

Wed, 12+15 ° /17 °

3.1

+17 °

Clachamish, Wednesday, 12 August

Light rain. High 17°C, low 15°C.

Pressure1017 mb

Wind14 mph S

Humidity85%

Visibility6.2 mi

Dew point14°C

Thu, 13+15 ° /16 °

9.3

+16 °

Clachamish, Thursday, 13 August

Light rain. High 16°C, low 15°C.

Pressure1017 mb

Wind12 mph S

Humidity99%

Visibility—

Dew point15°C

Fri, 14+13 ° /19 °

0.2

+19 °

Clachamish, Friday, 14 August

Light rain. High 19°C, low 13°C.

Pressure1018 mb

Wind7 mph NW

Humidity71%

Visibility—

Dew point13°C

Sat, 15+11 ° /17 °

+17 °

Clachamish, Saturday, 15 August

Mainly clear. High 17°C, low 11°C.

Pressure1019 mb

Wind7 mph N

Humidity65%

Visibility—

Dew point10°C

Sun, 16+10 ° /17 °

+17 °

Clachamish, Sunday, 16 August

Overcast. High 17°C, low 10°C.

Pressure1018 mb

Wind7 mph SW

Humidity64%

Visibility—

Dew point9°C

Mon, 17+12 ° /13 °

10.1

+13 °

Clachamish, Monday, 17 August

Rain. High 13°C, low 12°C.

Pressure1006 mb

Wind9 mph W

Humidity97%

Visibility—

Dew point12°C

Tue, 18+11 ° /14 °

4.7

+14 °

Clachamish, Tuesday, 18 August

Light rain. High 14°C, low 11°C.

Pressure1007 mb

Wind16 mph W

Humidity88%

Visibility—

Dew point11°C

Wed, 19+11 ° /14 °

6.9

+14 °

Clachamish, Wednesday, 19 August

Light rain. High 14°C, low 11°C.

Pressure1006 mb

Wind16 mph W

Humidity92%

Visibility—

Dew point12°C

Thu, 20+10 ° /15 °

1.4

+15 °

Clachamish, Thursday, 20 August

Light rain. High 15°C, low 10°C.

Pressure1011 mb

Wind9 mph NW

Humidity72%

Visibility—

Dew point10°C

Fri, 21+9 ° /16 °

+16 °

Clachamish, Friday, 21 August

Overcast. High 16°C, low 9°C.

Pressure1018 mb

Wind10 mph N

Humidity67%

Visibility—

Dew point9°C

Sat, 22+11 ° /15 °

+15 °

Clachamish, Saturday, 22 August

Overcast. High 15°C, low 11°C.

Pressure1023 mb

Wind8 mph N

Humidity75%

Visibility—

Dew point9°C

Sun, 23+10 ° /13 °

4.5

+13 °

Clachamish, Sunday, 23 August

Light rain. High 13°C, low 10°C.

Pressure1012 mb

Wind19 mph S

Humidity92%

Visibility—

Dew point11°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 Clachamish 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 Clachamish 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.