As of 21:17 PDT

Weather in Marengo, WA

43°

Marengo, Saturday, 10 October, 21:17

Clear. Feels like 43°. High 56°, low 41°.

Pressure29.77 inHg

Wind0.5 mph S

Humidity64%

Visibility6.2 mi

Dew point32°

See detailed hourly forecast

Monthly outlook for Marengo, WA: average high 64.9°, average low 47.6°. That is 1.8° above the climate normal for October. Precipitation is expected on 0 days (about 0.0 inches), against a normal of 4 days and 0.9 inches. The warmest day looks like 17 October (74.1°), the coolest 13 October (37.4°).

64.9°/47.6°

Average high / low

+1.8°

Above normal

0 / 4

Wet days / normal

0.0 in

Precipitation this month

Ten-day blocks vs climate normal

Period	Forecast high	Normal	Difference
10 October – 19 October	64.6°	62.5°	+1.1°
20 October – 29 October	65.5°	58.6°	+3.8°
30 October – 8 November	at normal	53.5°	—

October records over 66 years

89.6°2 October 1975All-time high

20.3°30 October 2019All-time low

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

Sun, 1151° / 41°

51 °

Marengo, Sunday, 11 October

Overcast. High 51°, low 41°.

Pressure29.88 inHg

Wind8.2 mph NE

Humidity51%

Visibility6.2 mi

Dew point32°

Mon, 1254° / 40°

54 °

Marengo, Monday, 12 October

Overcast. High 54°, low 40°.

Pressure30.06 inHg

Wind3.2 mph NW

Humidity49%

Visibility6.2 mi

Dew point33°

Tue, 1361° / 37°

61 °

Marengo, Tuesday, 13 October

Clear. High 61°, low 37°.

Pressure30.18 inHg

Wind3 mph N

Humidity38%

Visibility6.2 mi

Dew point33°

Wed, 1465° / 43°

65 °

Marengo, Wednesday, 14 October

Clear. High 65°, low 43°.

Pressure30.24 inHg

Wind4 mph NW

Humidity34%

Visibility6.2 mi

Dew point30°

Thu, 1572° / 46°

72 °

Marengo, Thursday, 15 October

Clear. High 72°, low 46°.

Pressure30.33 inHg

Wind6.7 mph NE

Humidity32%

Visibility—

Dew point32°

Fri, 1670° / 50°

70 °

Marengo, Friday, 16 October

Mostly clear. High 70°, low 50°.

Pressure30.21 inHg

Wind7.3 mph N

Humidity33%

Visibility—

Dew point34°

Sat, 1774° / 55°

74 °

Marengo, Saturday, 17 October

Overcast. High 74°, low 55°.

Pressure30.15 inHg

Wind8.5 mph W

Humidity25%

Visibility—

Dew point29°

Sun, 1873° / 58°

73 °

Marengo, Sunday, 18 October

Overcast. High 73°, low 58°.

Pressure30.06 inHg

Wind14.2 mph W

Humidity31%

Visibility—

Dew point36°

Mon, 1970° / 55°

70 °

Marengo, Monday, 19 October

Partly cloudy. High 70°, low 55°.

Pressure30.06 inHg

Wind18.1 mph SW

Humidity31%

Visibility—

Dew point34°

Tue, 2061° / 50°

61 °

Marengo, Tuesday, 20 October

Mostly clear. High 61°, low 50°.

Pressure30.18 inHg

Wind19.1 mph SW

Humidity40%

Visibility—

Dew point33°

Wed, 2162° / 48°

62 °

Marengo, Wednesday, 21 October

Overcast. High 62°, low 48°.

Pressure30.12 inHg

Wind7.2 mph NW

Humidity34%

Visibility—

Dew point28°

Thu, 2264° / 47°

64 °

Marengo, Thursday, 22 October

Overcast. High 64°, low 47°.

Pressure30.15 inHg

Wind5.4 mph NW

Humidity30%

Visibility—

Dew point27°

Fri, 2367° / 49°

67 °

Marengo, Friday, 23 October

Clear. High 67°, low 49°.

Pressure30.09 inHg

Wind5.6 mph NW

Humidity31%

Visibility—

Dew point30°

Sat, 2468° / 50°

68 °

Marengo, Saturday, 24 October

Clear. High 68°, low 50°.

Pressure30.09 inHg

Wind5.7 mph NW

Humidity30%

Visibility—

Dew point30°

Sun, 2572° / 52°

72 °

Marengo, Sunday, 25 October

Partly cloudy. High 72°, low 52°.

Pressure30.03 inHg

Wind13.9 mph W

Humidity24%

Visibility—

Dew point27°

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

Mon, 2658° / 42°

0.09

58 °

Marengo, Monday, 26 October

Climate normal for this date — 60-year average.

Average high58°

Average low42°

Average precipitation0.09 in

Chance of precipitation38%

Record high74° (1986)

Record low24° (2020)

Tue, 2756° / 40°

0.09

56 °

Marengo, Tuesday, 27 October

Climate normal for this date — 60-year average.

Average high56°

Average low40°

Average precipitation0.09 in

Chance of precipitation42%

Record high73° (1965)

Record low27° (1970)

Wed, 2856° / 41°

0.07

56 °

Marengo, Wednesday, 28 October

Climate normal for this date — 60-year average.

Average high56°

Average low41°

Average precipitation0.07 in

Chance of precipitation43%

Record high70° (1968)

Record low24° (1991)

Thu, 2955° / 40°

0.09

55 °

Marengo, Thursday, 29 October

Climate normal for this date — 60-year average.

Average high55°

Average low40°

Average precipitation0.09 in

Chance of precipitation42%

Record high72° (1965)

Record low20° (2019)

Fri, 3055° / 39°

0.08

55 °

Marengo, Friday, 30 October

Climate normal for this date — 60-year average.

Average high55°

Average low39°

Average precipitation0.08 in

Chance of precipitation30%

Record high68° (2008)

Record low20° (2019)

Sat, 3153° / 40°

0.12

53 °

Marengo, Saturday, 31 October

Climate normal for this date — 60-year average.

Average high53°

Average low40°

Average precipitation0.12 in

Chance of precipitation43%

Record high72° (1988)

Record low20° (2002)

Sun, 0154° / 39°

0.13

54 °

Marengo, Sunday, 1 November

Climate normal for this date — 60-year average.

Average high54°

Average low39°

Average precipitation0.13 in

Chance of precipitation38%

Record high75° (1965)

Record low20° (2002)

Mon, 0254° / 38°

0.07

54 °

Marengo, Monday, 2 November

Climate normal for this date — 60-year average.

Average high54°

Average low38°

Average precipitation0.07 in

Chance of precipitation33%

Record high67° (1981)

Record low15° (1991)

Tue, 0355° / 39°

0.04

55 °

Marengo, Tuesday, 3 November

Climate normal for this date — 60-year average.

Average high55°

Average low39°

Average precipitation0.04 in

Chance of precipitation18%

Record high69° (1975)

Record low18° (1973)

Wed, 0455° / 40°

0.12

55 °

Marengo, Wednesday, 4 November

Climate normal for this date — 60-year average.

Average high55°

Average low40°

Average precipitation0.12 in

Chance of precipitation47%

Record high72° (1975)

Record low25° (1973)

Thu, 0553° / 39°

0.1

53 °

Marengo, Thursday, 5 November

Climate normal for this date — 60-year average.

Average high53°

Average low39°

Average precipitation0.1 in

Chance of precipitation42%

Record high69° (1975)

Record low20° (1973)

Fri, 0653° / 38°

0.11

53 °

Marengo, Friday, 6 November

Climate normal for this date — 60-year average.

Average high53°

Average low38°

Average precipitation0.11 in

Chance of precipitation47%

Record high69° (2014)

Record low22° (2003)

Sat, 0753° / 38°

0.13

53 °

Marengo, Saturday, 7 November

Climate normal for this date — 60-year average.

Average high53°

Average low38°

Average precipitation0.13 in

Chance of precipitation42%

Record high68° (1978)

Record low24° (2003)

Sun, 0852° / 38°

0.09

52 °

Marengo, Sunday, 8 November

Climate normal for this date — 60-year average.

Average high52°

Average low38°

Average precipitation0.09 in

Chance of precipitation37%

Record high67° (2016)

Record low26° (1966)

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 Marengo, 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 Marengo, 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.