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As of 14:36 PDT

Weather in Markham, WA

67°Current weather

Markham, Saturday, 8 August, 14:36

Overcast. Feels like 67°. High 73°, low 57°.

Pressure30.12 inHg
Wind12.7 mph NW
Humidity77%
Visibility6.2 mi
Dew point60°
Sun, 0977° / 53°0Overcast
77 °Overcast

Markham, Sunday, 9 August

Overcast. High 77°, low 53°.

Pressure30.09 inHg
Wind10.4 mph W
Humidity72%
Visibility6.2 mi
Dew point54°
Mon, 1066° / 53°0Clear
66 °Clear

Markham, Monday, 10 August

Clear. High 66°, low 53°.

Pressure30.12 inHg
Wind9.8 mph W
Humidity71%
Visibility6.2 mi
Dew point54°
Tue, 1166° / 56°0Overcast
66 °Overcast

Markham, Tuesday, 11 August

Overcast. High 66°, low 56°.

Pressure30.15 inHg
Wind8.4 mph W
Humidity74%
Visibility6.2 mi
Dew point57°
Wed, 1265° / 60°0Mostly clear
65 °Mostly clear

Markham, Wednesday, 12 August

Mostly clear. High 65°, low 60°.

Pressure30.09 inHg
Wind11.1 mph W
Humidity74%
Visibility6.2 mi
Dew point56°
Thu, 1363° / 56°0Light rain
63 °Light rain

Markham, Thursday, 13 August

Light rain. High 63°, low 56°.

Pressure30.03 inHg
Wind9.7 mph W
Humidity74%
Visibility—
Dew point54°
Fri, 1467° / 56°0Overcast
67 °Overcast

Markham, Friday, 14 August

Overcast. High 67°, low 56°.

Pressure30.00 inHg
Wind10.6 mph NW
Humidity69%
Visibility—
Dew point55°
Sat, 1567° / 56°0Overcast
67 °Overcast

Markham, Saturday, 15 August

Overcast. High 67°, low 56°.

Pressure30.03 inHg
Wind8.4 mph W
Humidity71%
Visibility—
Dew point56°
Sun, 1667° / 56°0Overcast
67 °Overcast

Markham, Sunday, 16 August

Overcast. High 67°, low 56°.

Pressure30.09 inHg
Wind9.6 mph W
Humidity65%
Visibility—
Dew point54°
Mon, 1770° / 54°0Partly cloudy
70 °Partly cloudy

Markham, Monday, 17 August

Partly cloudy. High 70°, low 54°.

Pressure30.03 inHg
Wind9.4 mph W
Humidity57%
Visibility—
Dew point52°
Tue, 1868° / 56°0Overcast
68 °Overcast

Markham, Tuesday, 18 August

Overcast. High 68°, low 56°.

Pressure30.09 inHg
Wind7 mph SW
Humidity62%
Visibility—
Dew point54°
Wed, 1970° / 59°0.27Rain
70 °Rain

Markham, Wednesday, 19 August

Rain. High 70°, low 59°.

Pressure30.06 inHg
Wind5.7 mph E
Humidity62%
Visibility—
Dew point55°
Thu, 2068° / 58°0Overcast
68 °Overcast

Markham, Thursday, 20 August

Overcast. High 68°, low 58°.

Pressure30.06 inHg
Wind7.4 mph W
Humidity73%
Visibility—
Dew point58°
Fri, 2167° / 57°0Overcast
67 °Overcast

Markham, Friday, 21 August

Overcast. High 67°, low 57°.

Pressure30.09 inHg
Wind8.2 mph W
Humidity76%
Visibility—
Dew point58°
Sat, 2267° / 57°0Overcast
67 °Overcast

Markham, Saturday, 22 August

Overcast. High 67°, low 57°.

Pressure30.06 inHg
Wind12.1 mph NW
Humidity72%
Visibility—
Dew point56°
Sun, 2368° / 54°0Overcast
68 °Overcast

Markham, Sunday, 23 August

Overcast. High 68°, low 54°.

Pressure29.97 inHg
Wind10.2 mph W
Humidity69%
Visibility—
Dew point56°

About the monthly outlook

How accurate is a 30-day forecast?

The first 16 days come from weather models — reliable for the first 3–5 days and progressively less so after that. Days 17 through 30 for Markham, WA are built from the climate normal, the 60-year average, so they show typical weather for those dates rather than a specific forecast.

What does "above normal" mean?

We compare the forecast against the climate normal for those exact calendar days, computed from 60 years of observations. The deviation shows how much the coming month differs from a typical one.

Where do the 66-year records come from?

They are real temperature extremes recorded in Markham, WA since 1960: the highest and lowest reading for each calendar date, with the year it happened.

How often is it updated?

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