As of 00:52 PDT

Weather in Grinnell, WA

48°Current weather

Grinnell, Thursday, 15 October, 00:52

Clear. Feels like 46°. High 68°, low 37°.

Pressure30.42 inHg
Wind4.8 mph E
Humidity81%
Visibility6.2 mi
Dew point43°

Monthly outlook for Grinnell, WA: average high 57.4°, average low 38.1°. That is 0.9° above the climate normal for October. Precipitation is expected on 2 days (about 0.1 inches), against a normal of 5 days and 1.1 inches. The warmest day looks like 16 October (71.3°), the coolest 24 October (30.5°).

57.4°/38.1°
Average high / low
+0.9°
Above normal
2 / 5
Wet days / normal
0.1 in
Precipitation this month

Ten-day blocks vs climate normal

PeriodForecast highNormalDifference
15 October – 24 October59.4°57.8°+0.9°
25 October – 3 November54°51.3°+1.5°
4 November – 13 Novemberat normal47°—

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).

Fri, 1671° / 40°0Overcast
71 °Overcast

Grinnell, Friday, 16 October

Overcast. High 71°, low 40°.

Pressure30.33 inHg
Wind9.2 mph SE
Humidity26%
Visibility6.2 mi
Dew point32°
Sat, 1764° / 45°0Overcast
64 °Overcast

Grinnell, Saturday, 17 October

Overcast. High 64°, low 45°.

Pressure30.12 inHg
Wind14 mph SW
Humidity39%
Visibility6.2 mi
Dew point38°
Sun, 1866° / 39°0Clear
66 °Clear

Grinnell, Sunday, 18 October

Clear. High 66°, low 39°.

Pressure30.03 inHg
Wind3 mph E
Humidity37%
Visibility6.2 mi
Dew point35°
Mon, 1963° / 43°0Overcast
63 °Overcast

Grinnell, Monday, 19 October

Overcast. High 63°, low 43°.

Pressure29.88 inHg
Wind6.1 mph W
Humidity45%
Visibility—
Dew point34°
Tue, 2059° / 41°0Overcast
59 °Overcast

Grinnell, Tuesday, 20 October

Overcast. High 59°, low 41°.

Pressure29.94 inHg
Wind7.1 mph N
Humidity43%
Visibility—
Dew point32°
Wed, 2155° / 38°0Clear
55 °Clear

Grinnell, Wednesday, 21 October

Clear. High 55°, low 38°.

Pressure29.91 inHg
Wind8 mph W
Humidity51%
Visibility—
Dew point31°
Thu, 2252° / 39°0.01Light rain
52 °Light rain

Grinnell, Thursday, 22 October

Light rain. High 52°, low 39°.

Pressure29.97 inHg
Wind19.8 mph W
Humidity56%
Visibility—
Dew point32°
Fri, 2347° / 34°0Overcast
47 °Overcast

Grinnell, Friday, 23 October

Overcast. High 47°, low 34°.

Pressure30.33 inHg
Wind13.1 mph SW
Humidity59%
Visibility—
Dew point28°
Sat, 2449° / 30°0Clear
49 °Clear

Grinnell, Saturday, 24 October

Clear. High 49°, low 30°.

Pressure30.62 inHg
Wind8.2 mph W
Humidity42%
Visibility—
Dew point21°
Sun, 2552° / 33°0Overcast
52 °Overcast

Grinnell, Sunday, 25 October

Overcast. High 52°, low 33°.

Pressure30.53 inHg
Wind8 mph SE
Humidity29%
Visibility—
Dew point15°
Mon, 2655° / 36°0Overcast
55 °Overcast

Grinnell, Monday, 26 October

Overcast. High 55°, low 36°.

Pressure30.39 inHg
Wind6.6 mph W
Humidity27%
Visibility—
Dew point16°
Tue, 2760° / 38°0Overcast
60 °Overcast

Grinnell, Tuesday, 27 October

Overcast. High 60°, low 38°.

Pressure30.09 inHg
Wind11.4 mph SW
Humidity38%
Visibility—
Dew point26°
Wed, 2858° / 40°0Clear
58 °Clear

Grinnell, Wednesday, 28 October

Clear. High 58°, low 40°.

Pressure30.06 inHg
Wind7.7 mph W
Humidity44%
Visibility—
Dew point30°
Thu, 2956° / 41°0.06Light rain
56 °Light rain

Grinnell, Thursday, 29 October

Light rain. High 56°, low 41°.

Pressure29.77 inHg
Wind21.3 mph SW
Humidity38%
Visibility—
Dew point27°
Fri, 3042° / 35°0.05Light snow
42 °Light snow

Grinnell, Friday, 30 October

Light snow. High 42°, low 35°.

Pressure29.97 inHg
Wind22.6 mph W
Humidity57%
Visibility—
Dew point27°
From day 17 onward the outlook is built from 60-year climate statistics
Sat, 3150° / 36°0.11Climate normal
50 °Climate normal

Grinnell, Saturday, 31 October

Climate normal for this date — 60-year average.

Average high50°
Average low36°
Average precipitation0.11 in
Chance of precipitation30%
Record high68° (1988)
Record low16° (1984)
Sun, 0150° / 35°0.12Climate normal
50 °Climate normal

Grinnell, Sunday, 1 November

Climate normal for this date — 60-year average.

Average high50°
Average low35°
Average precipitation0.12 in
Chance of precipitation43%
Record high68° (1965)
Record low19° (2002)
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)

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.