As of 12:12 CDT

Weather in Grinnell, KS

81°

Grinnell, Saturday, 10 October, 12:12

Clear. Feels like 80°. High 85°, low 59°.

Pressure29.74 inHg

Wind16.4 mph S

Humidity39%

Visibility6.2 mi

Dew point53°

See detailed hourly forecast

Monthly outlook for Grinnell, KS: average high 70.5°, average low 51°. That is 1.9° above the climate normal for October. Precipitation is expected on 4 days (about 1.4 inches), against a normal of 2 days and 0.8 inches. The warmest day looks like 11 October (89.3°), the coolest 17 October (33.8°).

70.5°/51°

Average high / low

+1.9°

Above normal

4 / 2

Wet days / normal

1.4 in

Precipitation this month

Ten-day blocks vs climate normal

Period	Forecast high	Normal	Difference
10 October – 19 October	69.6°	67.9°	+0.9°
20 October – 29 October	72°	64°	+4.4°
30 October – 8 November	at normal	58°	—

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).

Sun, 1189° / 62°

89 °

Grinnell, Sunday, 11 October

Overcast. High 89°, low 62°.

Pressure29.71 inHg

Wind13.9 mph SW

Humidity37%

Visibility6.2 mi

Dew point51°

Mon, 1288° / 70°

88 °

Grinnell, Monday, 12 October

Light rain. High 88°, low 70°.

Pressure29.71 inHg

Wind16.9 mph SW

Humidity33%

Visibility6.2 mi

Dew point51°

Tue, 1372° / 55°

0.08

72 °

Grinnell, Tuesday, 13 October

Light rain. High 72°, low 55°.

Pressure29.91 inHg

Wind9.9 mph NE

Humidity70%

Visibility6.2 mi

Dew point54°

Wed, 1456° / 52°

0.27

56 °

Grinnell, Wednesday, 14 October

Light rain. High 56°, low 52°.

Pressure30.15 inHg

Wind10.8 mph NE

Humidity88%

Visibility3.7 mi

Dew point49°

Thu, 1559° / 52°

0.92

59 °

Grinnell, Thursday, 15 October

Heavy rain. High 59°, low 52°.

Pressure30.15 inHg

Wind11.3 mph N

Humidity78%

Visibility—

Dew point51°

Fri, 1654° / 44°

54 °

Grinnell, Friday, 16 October

Partly cloudy. High 54°, low 44°.

Pressure30.47 inHg

Wind26.6 mph N

Humidity21%

Visibility—

Dew point14°

Sat, 1751° / 34°

51 °

Grinnell, Saturday, 17 October

Clear. High 51°, low 34°.

Pressure30.59 inHg

Wind12.9 mph SE

Humidity21%

Visibility—

Dew point7°

Sun, 1868° / 39°

68 °

Grinnell, Sunday, 18 October

Clear. High 68°, low 39°.

Pressure30.15 inHg

Wind17.9 mph S

Humidity35%

Visibility—

Dew point30°

Mon, 1974° / 50°

74 °

Grinnell, Monday, 19 October

Clear. High 74°, low 50°.

Pressure29.97 inHg

Wind16.2 mph S

Humidity33%

Visibility—

Dew point37°

Tue, 2077° / 54°

0.09

77 °

Grinnell, Tuesday, 20 October

Light rain. High 77°, low 54°.

Pressure29.71 inHg

Wind32.2 mph NW

Humidity35%

Visibility—

Dew point40°

Wed, 2166° / 46°

66 °

Grinnell, Wednesday, 21 October

Clear. High 66°, low 46°.

Pressure30.15 inHg

Wind20 mph NW

Humidity33%

Visibility—

Dew point30°

Thu, 2272° / 49°

72 °

Grinnell, Thursday, 22 October

Clear. High 72°, low 49°.

Pressure30.06 inHg

Wind13.1 mph SW

Humidity29%

Visibility—

Dew point32°

Fri, 2372° / 48°

72 °

Grinnell, Friday, 23 October

Clear. High 72°, low 48°.

Pressure30.06 inHg

Wind11.1 mph E

Humidity47%

Visibility—

Dew point42°

Sat, 2480° / 57°

80 °

Grinnell, Saturday, 24 October

Clear. High 80°, low 57°.

Pressure29.94 inHg

Wind10.6 mph N

Humidity37%

Visibility—

Dew point45°

Sun, 2565° / 45°

65 °

Grinnell, Sunday, 25 October

Overcast. High 65°, low 45°.

Pressure30.21 inHg

Wind22.7 mph N

Humidity34%

Visibility—

Dew point35°

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

Mon, 2663° / 43°

0.06

63 °

Grinnell, Monday, 26 October

Climate normal for this date — 60-year average.

Average high63°

Average low43°

Average precipitation0.06 in

Chance of precipitation18%

Record high84° (1977)

Record low12° (1997)

Tue, 2762° / 42°

0.03

62 °

Grinnell, Tuesday, 27 October

Climate normal for this date — 60-year average.

Average high62°

Average low42°

Average precipitation0.03 in

Chance of precipitation13%

Record high82° (2016)

Record low7° (1997)

Wed, 2861° / 42°

0.05

61 °

Grinnell, Wednesday, 28 October

Climate normal for this date — 60-year average.

Average high61°

Average low42°

Average precipitation0.05 in

Chance of precipitation17%

Record high84° (2016)

Record low24° (2019)

Thu, 2961° / 41°

0.08

61 °

Grinnell, Thursday, 29 October

Climate normal for this date — 60-year average.

Average high61°

Average low41°

Average precipitation0.08 in

Chance of precipitation22%

Record high83° (2003)

Record low21° (1991)

Fri, 3059° / 40°

0.09

59 °

Grinnell, Friday, 30 October

Climate normal for this date — 60-year average.

Average high59°

Average low40°

Average precipitation0.09 in

Chance of precipitation23%

Record high81° (1964)

Record low19° (1993)

Sat, 3158° / 39°

0.05

58 °

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°

0.06

57 °

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°

0.05

57 °

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°

0.04

57 °

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°

0.01

58 °

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°

0.01

59 °

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°

0.01

58 °

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°

0.02

59 °

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°

0.05

58 °

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)

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.