As of 20:20 PST

Weather in Umtanum, WA

46°Current weather

Umtanum, Thursday, 12 November, 20:20

Overcast. Feels like 43°. High 50°, low 44°.

Pressure29.65 inHg
Wind4.6 mph N
Humidity94%
Visibility6.2 mi
Dew point44°

Monthly outlook for Umtanum, WA: average high 46°, average low 34.9°. That is 1.4° above the climate normal for November. Precipitation is expected on 3 days (about 0.5 inches), against a normal of 6 days and 1.3 inches. The warmest day looks like 26 November (52.3°), the coolest 23 November (29.4°).

46°/34.9°
Average high / low
+1.4°
Above normal
3 / 6
Wet days / normal
0.5 in
Precipitation this month

Ten-day blocks vs climate normal

PeriodForecast highNormalDifference
12 November – 21 November47°45.5°+0.8°
22 November – 1 December44.4°39.8°+2.5°
2 December – 11 Decemberat normal37.2°—

November records over 66 years

65.1°3 November 1975All-time high
-13.5°23 November 1985All-time low

Climate normals and records are computed from the nearest reference point — Hillside Siding (9 mi).

Fri, 1350° / 43°0.08Light rain
50 °Light rain

Umtanum, Friday, 13 November

Light rain. High 50°, low 43°.

Pressure29.38 inHg
Wind3.3 mph SE
Humidity59%
Visibility6.2 mi
Dew point42°
Sat, 1452° / 42°0Overcast
52 °Overcast

Umtanum, Saturday, 14 November

Overcast. High 52°, low 42°.

Pressure29.80 inHg
Wind5.9 mph S
Humidity70%
Visibility6.2 mi
Dew point41°
Sun, 1549° / 39°0.03Light rain
49 °Light rain

Umtanum, Sunday, 15 November

Light rain. High 49°, low 39°.

Pressure29.88 inHg
Wind3.5 mph S
Humidity78%
Visibility6.2 mi
Dew point42°
Mon, 1647° / 33°0Light rain
47 °Light rain

Umtanum, Monday, 16 November

Light rain. High 47°, low 33°.

Pressure30.06 inHg
Wind3.5 mph SE
Humidity72%
Visibility6.2 mi
Dew point36°
Tue, 1744° / 32°0Clear
44 °Clear

Umtanum, Tuesday, 17 November

Clear. High 44°, low 32°.

Pressure30.12 inHg
Wind5.4 mph SE
Humidity79%
Visibility—
Dew point31°
Wed, 1838° / 30°0.3Snow
38 °Snow

Umtanum, Wednesday, 18 November

Snow. High 38°, low 30°.

Pressure29.91 inHg
Wind2.6 mph N
Humidity81%
Visibility—
Dew point32°
Thu, 1947° / 32°0Overcast
47 °Overcast

Umtanum, Thursday, 19 November

Overcast. High 47°, low 32°.

Pressure29.97 inHg
Wind8.3 mph NW
Humidity77%
Visibility—
Dew point32°
Fri, 2047° / 34°0Overcast
47 °Overcast

Umtanum, Friday, 20 November

Overcast. High 47°, low 34°.

Pressure30.12 inHg
Wind6.6 mph NW
Humidity54%
Visibility—
Dew point26°
Sat, 2145° / 31°0Partly cloudy
45 °Partly cloudy

Umtanum, Saturday, 21 November

Partly cloudy. High 45°, low 31°.

Pressure30.21 inHg
Wind4 mph NW
Humidity48%
Visibility—
Dew point20°
Sun, 2244° / 29°0Mostly clear
44 °Mostly clear

Umtanum, Sunday, 22 November

Mostly clear. High 44°, low 29°.

Pressure30.15 inHg
Wind3.3 mph SE
Humidity53%
Visibility—
Dew point22°
Mon, 2343° / 29°0Partly cloudy
43 °Partly cloudy

Umtanum, Monday, 23 November

Partly cloudy. High 43°, low 29°.

Pressure30.21 inHg
Wind3.2 mph SE
Humidity56%
Visibility—
Dew point23°
Tue, 2441° / 29°0Overcast
41 °Overcast

Umtanum, Tuesday, 24 November

Overcast. High 41°, low 29°.

Pressure30.15 inHg
Wind2.7 mph N
Humidity66%
Visibility—
Dew point26°
Wed, 2541° / 35°0.02Light rain
41 °Light rain

Umtanum, Wednesday, 25 November

Light rain. High 41°, low 35°.

Pressure30.12 inHg
Wind4.1 mph E
Humidity74%
Visibility—
Dew point32°
Thu, 2652° / 38°0.09Light rain
52 °Light rain

Umtanum, Thursday, 26 November

Light rain. High 52°, low 38°.

Pressure30.00 inHg
Wind11 mph W
Humidity71%
Visibility—
Dew point36°
Fri, 2746° / 37°0.02Light rain
46 °Light rain

Umtanum, Friday, 27 November

Light rain. High 46°, low 37°.

Pressure30.03 inHg
Wind6.3 mph W
Humidity82%
Visibility—
Dew point37°
From day 17 onward the outlook is built from 60-year climate statistics
Sat, 2840° / 27°0.07Climate normal
40 °Climate normal

Umtanum, Saturday, 28 November

Climate normal for this date — 60-year average.

Average high40°
Average low27°
Average precipitation0.07 in
Chance of precipitation30%
Record high58° (2021)
Record low2° (1985)
Sun, 2939° / 27°0.07Climate normal
39 °Climate normal

Umtanum, Sunday, 29 November

Climate normal for this date — 60-year average.

Average high39°
Average low27°
Average precipitation0.07 in
Chance of precipitation40%
Record high56° (2021)
Record low-5° (1985)
Mon, 3038° / 26°0.09Climate normal
38 °Climate normal

Umtanum, Monday, 30 November

Climate normal for this date — 60-year average.

Average high38°
Average low26°
Average precipitation0.09 in
Chance of precipitation40%
Record high55° (2021)
Record low-1° (1985)
Tue, 0139° / 27°0.12Climate normal
39 °Climate normal

Umtanum, Tuesday, 1 December

Climate normal for this date — 60-year average.

Average high39°
Average low27°
Average precipitation0.12 in
Chance of precipitation40%
Record high60° (2021)
Record low-8° (1985)
Wed, 0239° / 27°0.16Climate normal
39 °Climate normal

Umtanum, Wednesday, 2 December

Climate normal for this date — 60-year average.

Average high39°
Average low27°
Average precipitation0.16 in
Chance of precipitation43%
Record high59° (2021)
Record low4° (2022)
Thu, 0338° / 27°0.11Climate normal
38 °Climate normal

Umtanum, Thursday, 3 December

Climate normal for this date — 60-year average.

Average high38°
Average low27°
Average precipitation0.11 in
Chance of precipitation35%
Record high52° (1982)
Record low4° (1984)
Fri, 0438° / 26°0.11Climate normal
38 °Climate normal

Umtanum, Friday, 4 December

Climate normal for this date — 60-year average.

Average high38°
Average low26°
Average precipitation0.11 in
Chance of precipitation45%
Record high51° (2012)
Record low1° (1984)
Sat, 0537° / 25°0.06Climate normal
37 °Climate normal

Umtanum, Saturday, 5 December

Climate normal for this date — 60-year average.

Average high37°
Average low25°
Average precipitation0.06 in
Chance of precipitation30%
Record high49° (1989)
Record low7° (1984)
Sun, 0637° / 26°0.07Climate normal
37 °Climate normal

Umtanum, Sunday, 6 December

Climate normal for this date — 60-year average.

Average high37°
Average low26°
Average precipitation0.07 in
Chance of precipitation35%
Record high50° (1989)
Record low7° (1998)
Mon, 0736° / 25°0.07Climate normal
36 °Climate normal

Umtanum, Monday, 7 December

Climate normal for this date — 60-year average.

Average high36°
Average low25°
Average precipitation0.07 in
Chance of precipitation32%
Record high50° (1965)
Record low-2° (1971)
Tue, 0837° / 25°0.08Climate normal
37 °Climate normal

Umtanum, Tuesday, 8 December

Climate normal for this date — 60-year average.

Average high37°
Average low25°
Average precipitation0.08 in
Chance of precipitation32%
Record high54° (2015)
Record low1° (1972)
Wed, 0936° / 25°0.12Climate normal
36 °Climate normal

Umtanum, Wednesday, 9 December

Climate normal for this date — 60-year average.

Average high36°
Average low25°
Average precipitation0.12 in
Chance of precipitation47%
Record high51° (2015)
Record low6° (1985)
Thu, 1038° / 26°0.12Climate normal
38 °Climate normal

Umtanum, Thursday, 10 December

Climate normal for this date — 60-year average.

Average high38°
Average low26°
Average precipitation0.12 in
Chance of precipitation40%
Record high58° (2025)
Record low2° (1961)
Fri, 1137° / 26°0.09Climate normal
37 °Climate normal

Umtanum, Friday, 11 December

Climate normal for this date — 60-year average.

Average high37°
Average low26°
Average precipitation0.09 in
Chance of precipitation38%
Record high57° (2025)
Record low3° (1963)

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 Umtanum, 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 Umtanum, 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.