As of 06:16 CDT

Weather in Grinnell, KS

48°Current weather

Grinnell, Thursday, 15 October, 06:16

Overcast. Feels like 45°. High 56°, low 47°.

Pressure30.09 inHg
Wind7.6 mph NW
Humidity96%
Visibility6.2 mi
Dew point47°

Monthly outlook for Grinnell, KS: average high 60.8°, average low 45.7°. That is 2° below the climate normal for October. Precipitation is expected on 4 days (about 1.6 inches), against a normal of 2 days and 0.8 inches. The warmest day looks like 20 October (69.6°), the coolest 17 October (35.7°).

60.8°/45.7°
Average high / low
−2°
Below normal
4 / 2
Wet days / normal
1.6 in
Precipitation this month

Ten-day blocks vs climate normal

PeriodForecast highNormalDifference
15 October – 24 October61.3°66.2°-2.7°
25 October – 3 November60.1°59.8°+0.2°
4 November – 13 Novemberat normal56.7°—

October records over 66 years

93.7°5 October 2007All-time high
7.3°27 October 1997All-time low

Climate normals and records are computed from the nearest reference point — Grainfield (9 mi).

Fri, 1652° / 40°0Clear
52 °Clear

Grinnell, Friday, 16 October

Clear. High 52°, low 40°.

Pressure30.74 inHg
Wind16 mph N
Humidity51%
Visibility6.2 mi
Dew point29°
Sat, 1762° / 36°0Clear
62 °Clear

Grinnell, Saturday, 17 October

Clear. High 62°, low 36°.

Pressure30.45 inHg
Wind13 mph S
Humidity44%
Visibility6.2 mi
Dew point30°
Sun, 1867° / 43°0Clear
67 °Clear

Grinnell, Sunday, 18 October

Clear. High 67°, low 43°.

Pressure30.15 inHg
Wind12 mph S
Humidity39%
Visibility6.2 mi
Dew point33°
Mon, 1965° / 47°0.08Light rain
65 °Light rain

Grinnell, Monday, 19 October

Light rain. High 65°, low 47°.

Pressure30.09 inHg
Wind8.1 mph S
Humidity50%
Visibility—
Dew point41°
Tue, 2070° / 49°0Overcast
70 °Overcast

Grinnell, Tuesday, 20 October

Overcast. High 70°, low 49°.

Pressure30.00 inHg
Wind14.4 mph S
Humidity54%
Visibility—
Dew point48°
Wed, 2165° / 61°0.01Light rain
65 °Light rain

Grinnell, Wednesday, 21 October

Light rain. High 65°, low 61°.

Pressure30.00 inHg
Wind22.9 mph S
Humidity83%
Visibility—
Dew point59°
Thu, 2263° / 59°0.48Rain
63 °Rain

Grinnell, Thursday, 22 October

Rain. High 63°, low 59°.

Pressure29.85 inHg
Wind20.8 mph SE
Humidity87%
Visibility—
Dew point58°
Fri, 2364° / 48°0.64Rain
64 °Rain

Grinnell, Friday, 23 October

Rain. High 64°, low 48°.

Pressure29.41 inHg
Wind36.8 mph W
Humidity49%
Visibility—
Dew point44°
Sat, 2450° / 44°0.01Light rain
50 °Light rain

Grinnell, Saturday, 24 October

Light rain. High 50°, low 44°.

Pressure30.27 inHg
Wind21 mph N
Humidity47%
Visibility—
Dew point29°
Sun, 2559° / 37°0Clear
59 °Clear

Grinnell, Sunday, 25 October

Clear. High 59°, low 37°.

Pressure30.39 inHg
Wind14.1 mph W
Humidity24%
Visibility—
Dew point16°
Mon, 2658° / 44°0Overcast
58 °Overcast

Grinnell, Monday, 26 October

Overcast. High 58°, low 44°.

Pressure30.24 inHg
Wind14.4 mph N
Humidity42%
Visibility—
Dew point31°
Tue, 2760° / 39°0Clear
60 °Clear

Grinnell, Tuesday, 27 October

Clear. High 60°, low 39°.

Pressure30.27 inHg
Wind11.9 mph SW
Humidity38%
Visibility—
Dew point29°
Wed, 2867° / 44°0Mostly clear
67 °Mostly clear

Grinnell, Wednesday, 28 October

Mostly clear. High 67°, low 44°.

Pressure29.94 inHg
Wind11.8 mph SW
Humidity40%
Visibility—
Dew point35°
Thu, 2966° / 51°0Overcast
66 °Overcast

Grinnell, Thursday, 29 October

Overcast. High 66°, low 51°.

Pressure30.06 inHg
Wind9.2 mph NW
Humidity35%
Visibility—
Dew point33°
Fri, 3051° / 44°0Overcast
51 °Overcast

Grinnell, Friday, 30 October

Overcast. High 51°, low 44°.

Pressure30.56 inHg
Wind12.6 mph NE
Humidity69%
Visibility—
Dew point37°
From day 17 onward the outlook is built from 60-year climate statistics
Sat, 3158° / 39°0.05Climate normal
58 °Climate normal

Grinnell, Saturday, 31 October

Climate normal for this date — 60-year average.

Average high58°
Average low39°
Average precipitation0.05 in
Chance of precipitation20%
Record high87° (2016)
Record low17° (1991)
Sun, 0157° / 38°0.06Climate normal
57 °Climate normal

Grinnell, Sunday, 1 November

Climate normal for this date — 60-year average.

Average high57°
Average low38°
Average precipitation0.06 in
Chance of precipitation18%
Record high78° (1990)
Record low15° (1991)
Mon, 0257° / 38°0.05Climate normal
57 °Climate normal

Grinnell, Monday, 2 November

Climate normal for this date — 60-year average.

Average high57°
Average low38°
Average precipitation0.05 in
Chance of precipitation27%
Record high79° (2022)
Record low6° (1991)
Tue, 0357° / 37°0.04Climate normal
57 °Climate normal

Grinnell, Tuesday, 3 November

Climate normal for this date — 60-year average.

Average high57°
Average low37°
Average precipitation0.04 in
Chance of precipitation18%
Record high78° (2005)
Record low-1° (1991)
Wed, 0458° / 37°0.01Climate normal
58 °Climate normal

Grinnell, Wednesday, 4 November

Climate normal for this date — 60-year average.

Average high58°
Average low37°
Average precipitation0.01 in
Chance of precipitation7%
Record high78° (2020)
Record low-2° (1991)
Thu, 0559° / 38°0.01Climate normal
59 °Climate normal

Grinnell, Thursday, 5 November

Climate normal for this date — 60-year average.

Average high59°
Average low38°
Average precipitation0.01 in
Chance of precipitation8%
Record high75° (2001)
Record low19° (1967)
Fri, 0658° / 37°0.01Climate normal
58 °Climate normal

Grinnell, Friday, 6 November

Climate normal for this date — 60-year average.

Average high58°
Average low37°
Average precipitation0.01 in
Chance of precipitation12%
Record high82° (1980)
Record low19° (1993)
Sat, 0759° / 38°0.02Climate normal
59 °Climate normal

Grinnell, Saturday, 7 November

Climate normal for this date — 60-year average.

Average high59°
Average low38°
Average precipitation0.02 in
Chance of precipitation8%
Record high77° (2014)
Record low19° (1991)
Sun, 0858° / 39°0.05Climate normal
58 °Climate normal

Grinnell, Sunday, 8 November

Climate normal for this date — 60-year average.

Average high58°
Average low39°
Average precipitation0.05 in
Chance of precipitation13%
Record high82° (1980)
Record low21° (1991)
Mon, 0956° / 37°0.04Climate normal
56 °Climate normal

Grinnell, Monday, 9 November

Climate normal for this date — 60-year average.

Average high56°
Average low37°
Average precipitation0.04 in
Chance of precipitation13%
Record high77° (1999)
Record low20° (2000)
Tue, 1056° / 35°0.02Climate normal
56 °Climate normal

Grinnell, Tuesday, 10 November

Climate normal for this date — 60-year average.

Average high56°
Average low35°
Average precipitation0.02 in
Chance of precipitation8%
Record high77° (2012)
Record low19° (1986)
Wed, 1153° / 34°0.04Climate normal
53 °Climate normal

Grinnell, Wednesday, 11 November

Climate normal for this date — 60-year average.

Average high53°
Average low34°
Average precipitation0.04 in
Chance of precipitation23%
Record high75° (2007)
Record low15° (1986)
Thu, 1254° / 34°0.02Climate normal
54 °Climate normal

Grinnell, Thursday, 12 November

Climate normal for this date — 60-year average.

Average high54°
Average low34°
Average precipitation0.02 in
Chance of precipitation8%
Record high75° (1989)
Record low12° (2000)
Fri, 1356° / 34°0.03Climate normal
56 °Climate normal

Grinnell, Friday, 13 November

Climate normal for this date — 60-year average.

Average high56°
Average low34°
Average precipitation0.03 in
Chance of precipitation10%
Record high79° (1999)
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, KS 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, KS 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.