As of 11:04 PST

Weather in Umtanum, WA

47°

Umtanum, Monday, 9 November, 11:04

Clear. Feels like 46°. High 51°, low 39°.

Pressure30.06 inHg

Wind3.4 mph SE

Humidity75%

Visibility6.2 mi

Dew point40°

See detailed hourly forecast

Monthly outlook for Umtanum, WA: average high 47.7°, average low 34.2°. That is 1.5° above the climate normal for November. Precipitation is expected on 4 days (about 0.8 inches), against a normal of 6 days and 1.2 inches. The warmest day looks like 11 November (57.7°), the coolest 23 November (23.7°).

47.7°/34.2°

Average high / low

+1.5°

Above normal

4 / 6

Wet days / normal

0.8 in

Precipitation this month

Ten-day blocks vs climate normal

Period	Forecast high	Normal	Difference
9 November – 18 November	51.8°	46.9°	+2.7°
19 November – 28 November	40.9°	41.1°	-0.1°
29 November – 8 December	at normal	37.8°	—

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).

Tue, 1056° / 43°

0.21

56 °

Umtanum, Tuesday, 10 November

Light rain. High 56°, low 43°.

Pressure30.18 inHg

Wind0.4 mph NE

Humidity93%

Visibility4.3 mi

Dew point43°

Wed, 1158° / 41°

58 °

Umtanum, Wednesday, 11 November

Overcast. High 58°, low 41°.

Pressure30.06 inHg

Wind0.7 mph NE

Humidity73%

Visibility3.0 mi

Dew point47°

Thu, 1258° / 44°

58 °

Umtanum, Thursday, 12 November

Overcast. High 58°, low 44°.

Pressure29.83 inHg

Wind1 mph S

Humidity62%

Visibility6.2 mi

Dew point44°

Fri, 1352° / 40°

0.03

52 °

Umtanum, Friday, 13 November

Light rain. High 52°, low 40°.

Pressure29.41 inHg

Wind3.4 mph S

Humidity71%

Visibility—

Dew point40°

Sat, 1451° / 38°

0.11

51 °

Umtanum, Saturday, 14 November

Light rain. High 51°, low 38°.

Pressure29.71 inHg

Wind5.7 mph SE

Humidity85%

Visibility—

Dew point40°

Sun, 1550° / 38°

0.03

50 °

Umtanum, Sunday, 15 November

Light rain. High 50°, low 38°.

Pressure29.65 inHg

Wind7.6 mph S

Humidity67%

Visibility—

Dew point34°

Mon, 1650° / 37°

50 °

Umtanum, Monday, 16 November

Overcast. High 50°, low 37°.

Pressure29.97 inHg

Wind16.3 mph NW

Humidity56%

Visibility—

Dew point31°

Tue, 1748° / 33°

48 °

Umtanum, Tuesday, 17 November

Clear. High 48°, low 33°.

Pressure30.33 inHg

Wind7.3 mph NW

Humidity56%

Visibility—

Dew point27°

Wed, 1845° / 30°

45 °

Umtanum, Wednesday, 18 November

Clear. High 45°, low 30°.

Pressure30.36 inHg

Wind4 mph N

Humidity55%

Visibility—

Dew point23°

Thu, 1942° / 30°

42 °

Umtanum, Thursday, 19 November

Overcast. High 42°, low 30°.

Pressure30.24 inHg

Wind6.3 mph NW

Humidity54%

Visibility—

Dew point22°

Fri, 2046° / 30°

46 °

Umtanum, Friday, 20 November

Partly cloudy. High 46°, low 30°.

Pressure30.15 inHg

Wind5.9 mph NW

Humidity40%

Visibility—

Dew point17°

Sat, 2142° / 27°

42 °

Umtanum, Saturday, 21 November

Clear. High 42°, low 27°.

Pressure30.30 inHg

Wind3.6 mph E

Humidity51%

Visibility—

Dew point19°

Sun, 2241° / 25°

41 °

Umtanum, Sunday, 22 November

Clear. High 41°, low 25°.

Pressure30.27 inHg

Wind4.7 mph E

Humidity57%

Visibility—

Dew point20°

Mon, 2340° / 24°

40 °

Umtanum, Monday, 23 November

Clear. High 40°, low 24°.

Pressure30.15 inHg

Wind5.2 mph E

Humidity58%

Visibility—

Dew point20°

Tue, 2435° / 32°

0.39

35 °

Umtanum, Tuesday, 24 November

Snow. High 35°, low 32°.

Pressure29.77 inHg

Wind3.6 mph NW

Humidity97%

Visibility—

Dew point32°

From day 17 onward the outlook is built from 60-year climate statistics

Wed, 2540° / 28°

0.12

40 °

Umtanum, Wednesday, 25 November

Climate normal for this date — 60-year average.

Average high40°

Average low28°

Average precipitation0.12 in

Chance of precipitation37%

Record high55° (1963)

Record low-7° (1985)

Thu, 2639° / 27°

0.05

39 °

Umtanum, Thursday, 26 November

Climate normal for this date — 60-year average.

Average high39°

Average low27°

Average precipitation0.05 in

Chance of precipitation23%

Record high54° (2014)

Record low-3° (1985)

Fri, 2740° / 28°

0.08

40 °

Umtanum, Friday, 27 November

Climate normal for this date — 60-year average.

Average high40°

Average low28°

Average precipitation0.08 in

Chance of precipitation40%

Record high56° (2014)

Record low-1° (1979)

Sat, 2840° / 27°

0.07

40 °

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°

0.07

39 °

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°

0.09

38 °

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°

0.12

39 °

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°

0.16

39 °

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°

0.11

38 °

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°

0.11

38 °

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°

0.06

37 °

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°

0.07

37 °

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°

0.07

36 °

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°

0.08

37 °

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)

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.