As of 03:47 PDT

Weather in Thornton, WA

42°Current weather

Thornton, Wednesday, 14 October, 03:47

Partly cloudy. Feels like 38°. High 63°, low 40°.

Pressure30.24 inHg
Wind5.4 mph SE
Humidity77%
Visibility6.2 mi
Dew point35°

Monthly outlook for Thornton, WA: average high 59.7°, average low 42.5°. That is 2° above the climate normal for October. Precipitation is expected on 2 days (about 0.6 inches), against a normal of 4 days and 0.9 inches. The warmest day looks like 16 October (73.2°), the coolest 27 October (37.8°).

59.7°/42.5°
Average high / low
+2°
Above normal
2 / 4
Wet days / normal
0.6 in
Precipitation this month

Ten-day blocks vs climate normal

PeriodForecast highNormalDifference
14 October – 23 October63.5°57.9°+3.2°
24 October – 2 November53.3°51.7°+0.9°
3 November – 12 Novemberat normal47.4°—

October records over 66 years

85.5°2 October 1975All-time high
13.3°25 October 2020All-time low

Climate normals and records are computed from the nearest reference point — Plaza (14 mi).

Thu, 1568° / 38°0Clear
68 °Clear

Thornton, Thursday, 15 October

Clear. High 68°, low 38°.

Pressure30.50 inHg
Wind7.4 mph E
Humidity35%
Visibility6.2 mi
Dew point35°
Fri, 1673° / 46°0Overcast
73 °Overcast

Thornton, Friday, 16 October

Overcast. High 73°, low 46°.

Pressure30.30 inHg
Wind7.6 mph S
Humidity24%
Visibility6.2 mi
Dew point29°
Sat, 1765° / 47°0Overcast
65 °Overcast

Thornton, Saturday, 17 October

Overcast. High 65°, low 47°.

Pressure30.09 inHg
Wind14.1 mph SW
Humidity35%
Visibility6.2 mi
Dew point35°
Sun, 1861° / 39°0Overcast
61 °Overcast

Thornton, Sunday, 18 October

Overcast. High 61°, low 39°.

Pressure30.06 inHg
Wind5 mph SE
Humidity37%
Visibility—
Dew point29°
Mon, 1958° / 44°0Overcast
58 °Overcast

Thornton, Monday, 19 October

Overcast. High 58°, low 44°.

Pressure29.88 inHg
Wind5.2 mph E
Humidity53%
Visibility—
Dew point32°
Tue, 2062° / 44°0Overcast
62 °Overcast

Thornton, Tuesday, 20 October

Overcast. High 62°, low 44°.

Pressure30.09 inHg
Wind4.9 mph NE
Humidity27%
Visibility—
Dew point21°
Wed, 2164° / 44°0Clear
64 °Clear

Thornton, Wednesday, 21 October

Clear. High 64°, low 44°.

Pressure30.03 inHg
Wind4.8 mph E
Humidity30%
Visibility—
Dew point24°
Thu, 2261° / 46°0Overcast
61 °Overcast

Thornton, Thursday, 22 October

Overcast. High 61°, low 46°.

Pressure29.85 inHg
Wind9.3 mph SW
Humidity35%
Visibility—
Dew point28°
Fri, 2361° / 43°0Clear
61 °Clear

Thornton, Friday, 23 October

Clear. High 61°, low 43°.

Pressure30.15 inHg
Wind6.8 mph N
Humidity35%
Visibility—
Dew point26°
Sat, 2461° / 43°0Overcast
61 °Overcast

Thornton, Saturday, 24 October

Overcast. High 61°, low 43°.

Pressure30.24 inHg
Wind6.4 mph SW
Humidity32%
Visibility—
Dew point23°
Sun, 2562° / 44°0Partly cloudy
62 °Partly cloudy

Thornton, Sunday, 25 October

Partly cloudy. High 62°, low 44°.

Pressure30.15 inHg
Wind4.7 mph E
Humidity32%
Visibility—
Dew point25°
Mon, 2649° / 44°0.06Light rain
49 °Light rain

Thornton, Monday, 26 October

Light rain. High 49°, low 44°.

Pressure29.94 inHg
Wind14.9 mph SW
Humidity58%
Visibility—
Dew point34°
Tue, 2750° / 38°0Light rain
50 °Light rain

Thornton, Tuesday, 27 October

Light rain. High 50°, low 38°.

Pressure30.03 inHg
Wind10.8 mph SW
Humidity63%
Visibility—
Dew point32°
Wed, 2851° / 43°0.51Rain
51 °Rain

Thornton, Wednesday, 28 October

Rain. High 51°, low 43°.

Pressure29.53 inHg
Wind24.9 mph SW
Humidity74%
Visibility—
Dew point38°
Thu, 2948° / 39°0Mostly clear
48 °Mostly clear

Thornton, Thursday, 29 October

Mostly clear. High 48°, low 39°.

Pressure29.80 inHg
Wind20.6 mph SW
Humidity63%
Visibility—
Dew point32°
From day 17 onward the outlook is built from 60-year climate statistics
Fri, 3050° / 35°0.06Climate normal
50 °Climate normal

Thornton, Friday, 30 October

Climate normal for this date — 60-year average.

Average high50°
Average low35°
Average precipitation0.06 in
Chance of precipitation30%
Record high67° (2008)
Record low15° (2019)
Sat, 3150° / 36°0.09Climate normal
50 °Climate normal

Thornton, Saturday, 31 October

Climate normal for this date — 60-year average.

Average high50°
Average low36°
Average precipitation0.09 in
Chance of precipitation28%
Record high67° (1988)
Record low17° (1984)
Sun, 0150° / 35°0.09Climate normal
50 °Climate normal

Thornton, Sunday, 1 November

Climate normal for this date — 60-year average.

Average high50°
Average low35°
Average precipitation0.09 in
Chance of precipitation38%
Record high68° (1965)
Record low19° (2002)
Mon, 0250° / 35°0.09Climate normal
50 °Climate normal

Thornton, Monday, 2 November

Climate normal for this date — 60-year average.

Average high50°
Average low35°
Average precipitation0.09 in
Chance of precipitation37%
Record high65° (1981)
Record low20° (1961)
Tue, 0350° / 35°0.04Climate normal
50 °Climate normal

Thornton, Tuesday, 3 November

Climate normal for this date — 60-year average.

Average high50°
Average low35°
Average precipitation0.04 in
Chance of precipitation30%
Record high64° (1965)
Record low22° (1973)
Wed, 0449° / 36°0.12Climate normal
49 °Climate normal

Thornton, Wednesday, 4 November

Climate normal for this date — 60-year average.

Average high49°
Average low36°
Average precipitation0.12 in
Chance of precipitation45%
Record high66° (1975)
Record low22° (2003)
Thu, 0548° / 34°0.08Climate normal
48 °Climate normal

Thornton, Thursday, 5 November

Climate normal for this date — 60-year average.

Average high48°
Average low34°
Average precipitation0.08 in
Chance of precipitation40%
Record high64° (1975)
Record low17° (1973)
Fri, 0648° / 34°0.1Climate normal
48 °Climate normal

Thornton, Friday, 6 November

Climate normal for this date — 60-year average.

Average high48°
Average low34°
Average precipitation0.1 in
Chance of precipitation48%
Record high64° (1999)
Record low17° (2003)
Sat, 0747° / 34°0.12Climate normal
47 °Climate normal

Thornton, Saturday, 7 November

Climate normal for this date — 60-year average.

Average high47°
Average low34°
Average precipitation0.12 in
Chance of precipitation42%
Record high67° (1999)
Record low13° (2017)
Sun, 0847° / 33°0.06Climate normal
47 °Climate normal

Thornton, Sunday, 8 November

Climate normal for this date — 60-year average.

Average high47°
Average low33°
Average precipitation0.06 in
Chance of precipitation30%
Record high65° (2016)
Record low22° (2022)
Mon, 0946° / 33°0.07Climate normal
46 °Climate normal

Thornton, Monday, 9 November

Climate normal for this date — 60-year average.

Average high46°
Average low33°
Average precipitation0.07 in
Chance of precipitation38%
Record high60° (1989)
Record low19° (1986)
Tue, 1046° / 33°0.07Climate normal
46 °Climate normal

Thornton, Tuesday, 10 November

Climate normal for this date — 60-year average.

Average high46°
Average low33°
Average precipitation0.07 in
Chance of precipitation37%
Record high62° (2016)
Record low12° (2022)
Wed, 1146° / 33°0.07Climate normal
46 °Climate normal

Thornton, Wednesday, 11 November

Climate normal for this date — 60-year average.

Average high46°
Average low33°
Average precipitation0.07 in
Chance of precipitation30%
Record high62° (2016)
Record low2° (2000)
Thu, 1246° / 33°0.09Climate normal
46 °Climate normal

Thornton, Thursday, 12 November

Climate normal for this date — 60-year average.

Average high46°
Average low33°
Average precipitation0.09 in
Chance of precipitation38%
Record high67° (1999)
Record low6° (2000)

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 Thornton, 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 Thornton, 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.