As of 04:33 PDT

Weather in Grinnell, WA

54°Current weather

Grinnell, Saturday, 17 October, 04:33

Overcast. Feels like 51°. High 65°, low 44°.

Pressure30.03 inHg
Wind8 mph SE
Humidity42%
Visibility6.2 mi
Dew point32°

Monthly outlook for Grinnell, WA: average high 55.1°, average low 37.8°. That is 0.3° above the climate normal for October. Precipitation is expected on 2 days (about 0.6 inches), against a normal of 5 days and 1.2 inches. The warmest day looks like 20 October (66.7°), the coolest 18 October (32.5°).

55.1°/37.8°
Average high / low
+0.3°
Above normal
2 / 5
Wet days / normal
0.6 in
Precipitation this month

Ten-day blocks vs climate normal

PeriodForecast highNormalDifference
17 October – 26 October59.8°56.8°+1.7°
27 October – 5 November47.4°50.2°-1.6°
6 November – 15 Novemberat normal46.3°—

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).

Sun, 1864° / 33°0Clear
64 °Clear

Grinnell, Sunday, 18 October

Clear. High 64°, low 33°.

Pressure30.09 inHg
Wind1 mph W
Humidity39%
Visibility6.2 mi
Dew point34°
Mon, 1960° / 40°0Overcast
60 °Overcast

Grinnell, Monday, 19 October

Overcast. High 60°, low 40°.

Pressure29.88 inHg
Wind6.5 mph W
Humidity47%
Visibility6.2 mi
Dew point38°
Tue, 2067° / 40°0Clear
67 °Clear

Grinnell, Tuesday, 20 October

Clear. High 67°, low 40°.

Pressure30.00 inHg
Wind2.3 mph N
Humidity39%
Visibility6.2 mi
Dew point36°
Wed, 2166° / 42°0Partly cloudy
66 °Partly cloudy

Grinnell, Wednesday, 21 October

Partly cloudy. High 66°, low 42°.

Pressure30.00 inHg
Wind4.3 mph SW
Humidity43%
Visibility—
Dew point35°
Thu, 2266° / 43°0Overcast
66 °Overcast

Grinnell, Thursday, 22 October

Overcast. High 66°, low 43°.

Pressure29.88 inHg
Wind7.6 mph W
Humidity44%
Visibility—
Dew point39°
Fri, 2350° / 40°0Overcast
50 °Overcast

Grinnell, Friday, 23 October

Overcast. High 50°, low 40°.

Pressure30.03 inHg
Wind16.8 mph SW
Humidity54%
Visibility—
Dew point29°
Sat, 2455° / 36°0Partly cloudy
55 °Partly cloudy

Grinnell, Saturday, 24 October

Partly cloudy. High 55°, low 36°.

Pressure30.30 inHg
Wind8.3 mph E
Humidity56%
Visibility—
Dew point33°
Sun, 2550° / 39°0Overcast
50 °Overcast

Grinnell, Sunday, 25 October

Overcast. High 50°, low 39°.

Pressure30.12 inHg
Wind13.7 mph SW
Humidity47%
Visibility—
Dew point28°
Mon, 2654° / 36°0.04Light rain
54 °Light rain

Grinnell, Monday, 26 October

Light rain. High 54°, low 36°.

Pressure30.03 inHg
Wind10.3 mph SW
Humidity47%
Visibility—
Dew point29°
Tue, 2746° / 38°0.22Rain
46 °Rain

Grinnell, Tuesday, 27 October

Rain. High 46°, low 38°.

Pressure29.91 inHg
Wind15.5 mph SW
Humidity71%
Visibility—
Dew point33°
Wed, 2847° / 35°0.27Rain
47 °Rain

Grinnell, Wednesday, 28 October

Rain. High 47°, low 35°.

Pressure29.88 inHg
Wind15 mph SW
Humidity55%
Visibility—
Dew point28°
Thu, 2946° / 37°0.01Light rain
46 °Light rain

Grinnell, Thursday, 29 October

Light rain. High 46°, low 37°.

Pressure30.00 inHg
Wind16.7 mph SW
Humidity70%
Visibility—
Dew point33°
Fri, 3044° / 33°0.04Light rain
44 °Light rain

Grinnell, Friday, 30 October

Light rain. High 44°, low 33°.

Pressure29.97 inHg
Wind17 mph SW
Humidity70%
Visibility—
Dew point31°
Sat, 3147° / 35°0Overcast
47 °Overcast

Grinnell, Saturday, 31 October

Overcast. High 47°, low 35°.

Pressure30.21 inHg
Wind7.5 mph SE
Humidity72%
Visibility—
Dew point33°
Sun, 0155° / 35°0Partly cloudy
55 °Partly cloudy

Grinnell, Sunday, 1 November

Partly cloudy. High 55°, low 35°.

Pressure30.12 inHg
Wind10.6 mph SE
Humidity44%
Visibility—
Dew point25°
From day 17 onward the outlook is built from 60-year climate statistics
Mon, 0250° / 35°0.11Climate normal
50 °Climate normal

Grinnell, Monday, 2 November

Climate normal for this date — 60-year average.

Average high50°
Average low35°
Average precipitation0.11 in
Chance of precipitation37%
Record high66° (1981)
Record low13° (1973)
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)

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.