As of 09:30 PDT

Weather in Thornton, WA

48°Current weather

Thornton, Saturday, 10 October, 09:30

Clear. Feels like 43°. High 53°, low 40°.

Pressure29.77 inHg
Wind10.5 mph SW
Humidity66%
Visibility6.2 mi
Dew point37°

Monthly outlook for Thornton, WA: average high 58.4°, average low 42.3°. That is 0.3° above the climate normal for October. Precipitation is expected on 2 days (about 0.2 inches), against a normal of 4 days and 0.8 inches. The warmest day looks like 16 October (67.3°), the coolest 13 October (32.6°).

58.4°/42.3°
Average high / low
+0.3°
Above normal
2 / 4
Wet days / normal
0.2 in
Precipitation this month

Ten-day blocks vs climate normal

PeriodForecast highNormalDifference
10 October – 19 October57.9°59°-0.6°
20 October – 29 October59.3°54.4°+2.7°
30 October – 8 Novemberat normal48.9°—

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).

Sun, 1148° / 37°0.1Rain
48 °Rain

Thornton, Sunday, 11 October

Rain. High 48°, low 37°.

Pressure29.91 inHg
Wind16.7 mph NE
Humidity52%
Visibility6.2 mi
Dew point27°
Mon, 1251° / 38°0Overcast
51 °Overcast

Thornton, Monday, 12 October

Overcast. High 51°, low 38°.

Pressure30.06 inHg
Wind2.8 mph S
Humidity52%
Visibility6.2 mi
Dew point30°
Tue, 1356° / 33°0Mostly clear
56 °Mostly clear

Thornton, Tuesday, 13 October

Mostly clear. High 56°, low 33°.

Pressure30.15 inHg
Wind1.4 mph W
Humidity45%
Visibility6.2 mi
Dew point31°
Wed, 1460° / 37°0Partly cloudy
60 °Partly cloudy

Thornton, Wednesday, 14 October

Partly cloudy. High 60°, low 37°.

Pressure30.21 inHg
Wind5.5 mph W
Humidity40%
Visibility—
Dew point29°
Thu, 1566° / 41°0Clear
66 °Clear

Thornton, Thursday, 15 October

Clear. High 66°, low 41°.

Pressure30.39 inHg
Wind6.6 mph NE
Humidity35%
Visibility—
Dew point30°
Fri, 1667° / 44°0Partly cloudy
67 °Partly cloudy

Thornton, Friday, 16 October

Partly cloudy. High 67°, low 44°.

Pressure30.36 inHg
Wind10.4 mph E
Humidity38%
Visibility—
Dew point32°
Sat, 1764° / 49°0Overcast
64 °Overcast

Thornton, Saturday, 17 October

Overcast. High 64°, low 49°.

Pressure30.06 inHg
Wind10.9 mph SW
Humidity30%
Visibility—
Dew point28°
Sun, 1859° / 47°0Overcast
59 °Overcast

Thornton, Sunday, 18 October

Overcast. High 59°, low 47°.

Pressure30.03 inHg
Wind13.2 mph SW
Humidity47%
Visibility—
Dew point35°
Mon, 1955° / 43°0.05Light rain
55 °Light rain

Thornton, Monday, 19 October

Light rain. High 55°, low 43°.

Pressure29.97 inHg
Wind14.1 mph SW
Humidity53%
Visibility—
Dew point36°
Tue, 2055° / 38°0Mostly clear
55 °Mostly clear

Thornton, Tuesday, 20 October

Mostly clear. High 55°, low 38°.

Pressure30.27 inHg
Wind12.1 mph SE
Humidity58%
Visibility—
Dew point34°
Wed, 2155° / 43°0Partly cloudy
55 °Partly cloudy

Thornton, Wednesday, 21 October

Partly cloudy. High 55°, low 43°.

Pressure30.18 inHg
Wind17.2 mph SW
Humidity50%
Visibility—
Dew point32°
Thu, 2259° / 42°0Overcast
59 °Overcast

Thornton, Thursday, 22 October

Overcast. High 59°, low 42°.

Pressure30.03 inHg
Wind6.9 mph E
Humidity30%
Visibility—
Dew point21°
Fri, 2358° / 50°0.01Light rain
58 °Light rain

Thornton, Friday, 23 October

Light rain. High 58°, low 50°.

Pressure29.85 inHg
Wind12.7 mph SE
Humidity38%
Visibility—
Dew point28°
Sat, 2464° / 49°0Overcast
64 °Overcast

Thornton, Saturday, 24 October

Overcast. High 64°, low 49°.

Pressure30.15 inHg
Wind7.5 mph SW
Humidity48%
Visibility—
Dew point37°
Sun, 2565° / 49°0Overcast
65 °Overcast

Thornton, Sunday, 25 October

Overcast. High 65°, low 49°.

Pressure30.30 inHg
Wind6.2 mph E
Humidity47%
Visibility—
Dew point38°
From day 17 onward the outlook is built from 60-year climate statistics
Mon, 2653° / 37°0.06Climate normal
53 °Climate normal

Thornton, Monday, 26 October

Climate normal for this date — 60-year average.

Average high53°
Average low37°
Average precipitation0.06 in
Chance of precipitation35%
Record high70° (1965)
Record low14° (2020)
Tue, 2752° / 36°0.06Climate normal
52 °Climate normal

Thornton, Tuesday, 27 October

Climate normal for this date — 60-year average.

Average high52°
Average low36°
Average precipitation0.06 in
Chance of precipitation33%
Record high69° (1965)
Record low14° (2020)
Wed, 2852° / 36°0.06Climate normal
52 °Climate normal

Thornton, Wednesday, 28 October

Climate normal for this date — 60-year average.

Average high52°
Average low36°
Average precipitation0.06 in
Chance of precipitation35%
Record high66° (2003)
Record low19° (2023)
Thu, 2951° / 36°0.07Climate normal
51 °Climate normal

Thornton, Thursday, 29 October

Climate normal for this date — 60-year average.

Average high51°
Average low36°
Average precipitation0.07 in
Chance of precipitation30%
Record high68° (1983)
Record low17° (2019)
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)

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.