As of 12:42 PDT

Weather in Grinnell, WA

60°Current weather

Grinnell, Sunday, 18 October, 12:42

Clear. Feels like 58°. High 61°, low 34°.

Pressure30.06 inHg
Wind1 mph W
Humidity45%
Visibility6.2 mi
Dew point39°

Monthly outlook for Grinnell, WA: average high 52.5°, average low 36.5°. That is 0.8° below the climate normal for October. Precipitation is expected on 6 days (about 1.6 inches), against a normal of 5 days and 1.3 inches. The warmest day looks like 20 October (69°), the coolest 30 October (26.9°).

52.5°/36.5°
Average high / low
−0.8°
Below normal
6 / 5
Wet days / normal
1.6 in
Precipitation this month

Ten-day blocks vs climate normal

PeriodForecast highNormalDifference
18 October – 27 October55.5°56.1°-0.3°
28 October – 6 November47.3°49.8°-1.4°
7 November – 16 Novemberat normal46°—

October records over 66 years

85.3°2 October 1987All-time high
9.7°26 October 2020All-time low

Climate normals and records are computed from the nearest reference point — Garfield (5 mi).

Mon, 1961° / 37°0Overcast
61 °Overcast

Grinnell, Monday, 19 October

Overcast. High 61°, low 37°.

Pressure29.91 inHg
Wind4.9 mph W
Humidity43%
Visibility6.2 mi
Dew point36°
Tue, 2069° / 39°0Overcast
69 °Overcast

Grinnell, Tuesday, 20 October

Overcast. High 69°, low 39°.

Pressure30.00 inHg
Wind1.5 mph NW
Humidity41%
Visibility6.2 mi
Dew point39°
Wed, 2169° / 41°0Overcast
69 °Overcast

Grinnell, Wednesday, 21 October

Overcast. High 69°, low 41°.

Pressure29.97 inHg
Wind1.9 mph S
Humidity39%
Visibility6.2 mi
Dew point39°
Thu, 2252° / 44°0.34Rain
52 °Rain

Grinnell, Thursday, 22 October

Rain. High 52°, low 44°.

Pressure29.83 inHg
Wind7.1 mph SW
Humidity73%
Visibility6.2 mi
Dew point42°
Fri, 2349° / 38°0.01Light rain
49 °Light rain

Grinnell, Friday, 23 October

Light rain. High 49°, low 38°.

Pressure30.12 inHg
Wind16.9 mph W
Humidity63%
Visibility—
Dew point32°
Sat, 2454° / 35°0Overcast
54 °Overcast

Grinnell, Saturday, 24 October

Overcast. High 54°, low 35°.

Pressure30.33 inHg
Wind6.1 mph SE
Humidity34%
Visibility—
Dew point20°
Sun, 2549° / 43°0.06Light rain
49 °Light rain

Grinnell, Sunday, 25 October

Light rain. High 49°, low 43°.

Pressure30.09 inHg
Wind6.5 mph S
Humidity33%
Visibility—
Dew point20°
Mon, 2646° / 39°0.03Light rain
46 °Light rain

Grinnell, Monday, 26 October

Light rain. High 46°, low 39°.

Pressure29.97 inHg
Wind8.1 mph W
Humidity73%
Visibility—
Dew point37°
Tue, 2746° / 35°0.27Snow
46 °Snow

Grinnell, Tuesday, 27 October

Snow. High 46°, low 35°.

Pressure30.00 inHg
Wind11.1 mph W
Humidity96%
Visibility—
Dew point37°
Wed, 2851° / 33°0Clear
51 °Clear

Grinnell, Wednesday, 28 October

Clear. High 51°, low 33°.

Pressure29.94 inHg
Wind14 mph SW
Humidity51%
Visibility—
Dew point27°
Thu, 2942° / 32°0.05Snow
42 °Snow

Grinnell, Thursday, 29 October

Snow. High 42°, low 32°.

Pressure29.94 inHg
Wind12.4 mph SW
Humidity69%
Visibility—
Dew point29°
Fri, 3043° / 27°0Partly cloudy
43 °Partly cloudy

Grinnell, Friday, 30 October

Partly cloudy. High 43°, low 27°.

Pressure30.30 inHg
Wind6 mph SW
Humidity48%
Visibility—
Dew point19°
Sat, 3147° / 28°0Clear
47 °Clear

Grinnell, Saturday, 31 October

Clear. High 47°, low 28°.

Pressure30.15 inHg
Wind8.6 mph SE
Humidity44%
Visibility—
Dew point19°
Sun, 0151° / 36°0.17Rain
51 °Rain

Grinnell, Sunday, 1 November

Rain. High 51°, low 36°.

Pressure29.88 inHg
Wind11.2 mph S
Humidity43%
Visibility—
Dew point22°
Mon, 0250° / 41°0.64Rain
50 °Rain

Grinnell, Monday, 2 November

Rain. High 50°, low 41°.

Pressure29.77 inHg
Wind15.5 mph S
Humidity75%
Visibility—
Dew point41°
From day 17 onward the outlook is built from 60-year climate statistics
Tue, 0350° / 35°0.05Climate normal
50 °Climate normal

Grinnell, Tuesday, 3 November

Climate normal for this date — 60-year average.

Average high50°
Average low35°
Average precipitation0.05 in
Chance of precipitation30%
Record high64° (1965)
Record low13° (1973)
Wed, 0449° / 36°0.14Climate normal
49 °Climate normal

Grinnell, Wednesday, 4 November

Climate normal for this date — 60-year average.

Average high49°
Average low36°
Average precipitation0.14 in
Chance of precipitation48%
Record high65° (1975)
Record low18° (1973)
Thu, 0548° / 35°0.09Climate normal
48 °Climate normal

Grinnell, Thursday, 5 November

Climate normal for this date — 60-year average.

Average high48°
Average low35°
Average precipitation0.09 in
Chance of precipitation45%
Record high64° (1987)
Record low15° (1973)
Fri, 0648° / 35°0.11Climate normal
48 °Climate normal

Grinnell, Friday, 6 November

Climate normal for this date — 60-year average.

Average high48°
Average low35°
Average precipitation0.11 in
Chance of precipitation48%
Record high64° (2012)
Record low21° (1994)
Sat, 0747° / 35°0.15Climate normal
47 °Climate normal

Grinnell, Saturday, 7 November

Climate normal for this date — 60-year average.

Average high47°
Average low35°
Average precipitation0.15 in
Chance of precipitation45%
Record high67° (1999)
Record low21° (1973)
Sun, 0847° / 34°0.08Climate normal
47 °Climate normal

Grinnell, Sunday, 8 November

Climate normal for this date — 60-year average.

Average high47°
Average low34°
Average precipitation0.08 in
Chance of precipitation37%
Record high65° (2016)
Record low19° (1986)
Mon, 0947° / 34°0.09Climate normal
47 °Climate normal

Grinnell, Monday, 9 November

Climate normal for this date — 60-year average.

Average high47°
Average low34°
Average precipitation0.09 in
Chance of precipitation42%
Record high61° (2016)
Record low16° (1986)
Tue, 1046° / 33°0.07Climate normal
46 °Climate normal

Grinnell, Tuesday, 10 November

Climate normal for this date — 60-year average.

Average high46°
Average low33°
Average precipitation0.07 in
Chance of precipitation38%
Record high65° (2016)
Record low6° (1986)
Wed, 1146° / 33°0.07Climate normal
46 °Climate normal

Grinnell, Wednesday, 11 November

Climate normal for this date — 60-year average.

Average high46°
Average low33°
Average precipitation0.07 in
Chance of precipitation33%
Record high64° (2016)
Record low-1° (2000)
Thu, 1246° / 34°0.12Climate normal
46 °Climate normal

Grinnell, Thursday, 12 November

Climate normal for this date — 60-year average.

Average high46°
Average low34°
Average precipitation0.12 in
Chance of precipitation38%
Record high67° (1999)
Record low8° (2000)
Fri, 1345° / 33°0.11Climate normal
45 °Climate normal

Grinnell, Friday, 13 November

Climate normal for this date — 60-year average.

Average high45°
Average low33°
Average precipitation0.11 in
Chance of precipitation48%
Record high65° (1999)
Record low8° (2000)
Sat, 1446° / 33°0.07Climate normal
46 °Climate normal

Grinnell, Saturday, 14 November

Climate normal for this date — 60-year average.

Average high46°
Average low33°
Average precipitation0.07 in
Chance of precipitation40%
Record high65° (1999)
Record low10° (2000)
Sun, 1546° / 32°0.08Climate normal
46 °Climate normal

Grinnell, Sunday, 15 November

Climate normal for this date — 60-year average.

Average high46°
Average low32°
Average precipitation0.08 in
Chance of precipitation37%
Record high60° (2021)
Record low10° (2000)
Mon, 1644° / 33°0.11Climate normal
44 °Climate normal

Grinnell, Monday, 16 November

Climate normal for this date — 60-year average.

Average high44°
Average low33°
Average precipitation0.11 in
Chance of precipitation48%
Record high60° (1999)
Record low13° (1964)

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 Grinnell, 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 Grinnell, 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.