As of 05:17 CDT

Weather in Grant City, IA

56°

Grant City, Wednesday, 28 October, 05:17

Clear. Feels like 55°. High 70°, low 54°.

Pressure30.03 inHg

Wind7.4 mph S

Humidity94%

Visibility6.2 mi

Dew point53°

See detailed hourly forecast

Monthly outlook for Grant City, IA: average high 58.3°, average low 46.3°. That is 4° above the climate normal for October. Precipitation is expected on 5 days (about 2.2 inches), against a normal of 4 days and 1.1 inches. The warmest day looks like 28 October (70.4°), the coolest 6 November (35.5°).

58.3°/46.3°

Average high / low

+4°

Above normal

5 / 4

Wet days / normal

2.2 in

Precipitation this month

Ten-day blocks vs climate normal

Period	Forecast high	Normal	Difference
28 October – 6 November	61°	53°	+4.5°
7 November – 16 November	53.7°	47.5°	+3.4°
17 November – 26 November	at normal	43.1°	—

October records over 66 years

89.2°3 October 2025All-time high

16.3°27 October 2020All-time low

Climate normals and records are computed from the nearest reference point — Lake City (8 mi).

Thu, 2963° / 45°

63 °

Grant City, Thursday, 29 October

Clear. High 63°, low 45°.

Pressure30.24 inHg

Wind6.2 mph NE

Humidity53%

Visibility6.2 mi

Dew point41°

Fri, 3057° / 46°

0.15

57 °

Grant City, Friday, 30 October

Rain. High 57°, low 46°.

Pressure30.21 inHg

Wind8.6 mph E

Humidity82%

Visibility6.2 mi

Dew point47°

Sat, 3168° / 52°

0.13

68 °

Grant City, Saturday, 31 October

Rain. High 68°, low 52°.

Pressure30.21 inHg

Wind2.7 mph E

Humidity94%

Visibility6.2 mi

Dew point57°

Sun, 0170° / 51°

70 °

Grant City, Sunday, 1 November

Overcast. High 70°, low 51°.

Pressure30.18 inHg

Wind12.3 mph S

Humidity68%

Visibility—

Dew point55°

Mon, 0264° / 61°

64 °

Grant City, Monday, 2 November

Rain. High 64°, low 61°.

Pressure29.74 inHg

Wind21.2 mph SE

Humidity90%

Visibility—

Dew point61°

Tue, 0359° / 50°

0.81

59 °

Grant City, Tuesday, 3 November

Rain. High 59°, low 50°.

Pressure29.68 inHg

Wind21.5 mph E

Humidity89%

Visibility—

Dew point49°

Wed, 0456° / 44°

56 °

Grant City, Wednesday, 4 November

Overcast. High 56°, low 44°.

Pressure29.94 inHg

Wind6.7 mph N

Humidity56%

Visibility—

Dew point37°

Thu, 0554° / 43°

54 °

Grant City, Thursday, 5 November

Overcast. High 54°, low 43°.

Pressure29.97 inHg

Wind17.6 mph N

Humidity80%

Visibility—

Dew point46°

Fri, 0649° / 35°

49 °

Grant City, Friday, 6 November

Clear. High 49°, low 35°.

Pressure30.27 inHg

Wind9.3 mph N

Humidity48%

Visibility—

Dew point26°

Sat, 0751° / 36°

51 °

Grant City, Saturday, 7 November

Clear. High 51°, low 36°.

Pressure30.21 inHg

Wind11 mph S

Humidity50%

Visibility—

Dew point30°

Sun, 0854° / 40°

54 °

Grant City, Sunday, 8 November

Mostly clear. High 54°, low 40°.

Pressure30.09 inHg

Wind14.6 mph S

Humidity53%

Visibility—

Dew point35°

Mon, 0959° / 48°

59 °

Grant City, Monday, 9 November

Overcast. High 59°, low 48°.

Pressure29.97 inHg

Wind15.6 mph SW

Humidity79%

Visibility—

Dew point49°

Tue, 1059° / 51°

59 °

Grant City, Tuesday, 10 November

Overcast. High 59°, low 51°.

Pressure29.77 inHg

Wind16.3 mph S

Humidity81%

Visibility—

Dew point50°

Wed, 1150° / 45°

50 °

Grant City, Wednesday, 11 November

Partly cloudy. High 50°, low 45°.

Pressure29.77 inHg

Wind14.9 mph NW

Humidity51%

Visibility—

Dew point31°

Thu, 1249° / 41°

0.01

49 °

Grant City, Thursday, 12 November

Light rain. High 49°, low 41°.

Pressure29.53 inHg

Wind19.6 mph NW

Humidity75%

Visibility—

Dew point38°

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

Fri, 1346° / 30°

0.06

46 °

Grant City, Friday, 13 November

Climate normal for this date — 60-year average.

Average high46°

Average low30°

Average precipitation0.06 in

Chance of precipitation23%

Record high73° (1999)

Record low3° (1986)

Sat, 1446° / 31°

0.03

46 °

Grant City, Saturday, 14 November

Climate normal for this date — 60-year average.

Average high46°

Average low31°

Average precipitation0.03 in

Chance of precipitation13%

Record high73° (2025)

Record low11° (2014)

Sun, 1547° / 31°

0.06

47 °

Grant City, Sunday, 15 November

Climate normal for this date — 60-year average.

Average high47°

Average low31°

Average precipitation0.06 in

Chance of precipitation20%

Record high70° (2001)

Record low10° (1972)

Mon, 1647° / 30°

0.05

47 °

Grant City, Monday, 16 November

Climate normal for this date — 60-year average.

Average high47°

Average low30°

Average precipitation0.05 in

Chance of precipitation18%

Record high70° (2001)

Record low4° (1997)

Tue, 1747° / 31°

0.07

47 °

Grant City, Tuesday, 17 November

Climate normal for this date — 60-year average.

Average high47°

Average low31°

Average precipitation0.07 in

Chance of precipitation27%

Record high67° (2016)

Record low10° (2014)

Wed, 1846° / 30°

0.07

46 °

Grant City, Wednesday, 18 November

Climate normal for this date — 60-year average.

Average high46°

Average low30°

Average precipitation0.07 in

Chance of precipitation28%

Record high71° (1999)

Record low1° (1961)

Thu, 1945° / 30°

0.07

45 °

Grant City, Thursday, 19 November

Climate normal for this date — 60-year average.

Average high45°

Average low30°

Average precipitation0.07 in

Chance of precipitation25%

Record high66° (2020)

Record low6° (1997)

Fri, 2043° / 29°

0.09

43 °

Grant City, Friday, 20 November

Climate normal for this date — 60-year average.

Average high43°

Average low29°

Average precipitation0.09 in

Chance of precipitation18%

Record high65° (2003)

Record low9° (1968)

Sat, 2143° / 26°

0.04

43 °

Grant City, Saturday, 21 November

Climate normal for this date — 60-year average.

Average high43°

Average low26°

Average precipitation0.04 in

Chance of precipitation12%

Record high71° (1990)

Record low0° (2000)

Sun, 2243° / 28°

0.03

43 °

Grant City, Sunday, 22 November

Climate normal for this date — 60-year average.

Average high43°

Average low28°

Average precipitation0.03 in

Chance of precipitation20%

Record high66° (1966)

Record low6° (2000)

Mon, 2342° / 27°

0.06

42 °

Grant City, Monday, 23 November

Climate normal for this date — 60-year average.

Average high42°

Average low27°

Average precipitation0.06 in

Chance of precipitation25%

Record high57° (2006)

Record low4° (1985)

Tue, 2442° / 26°

0.05

42 °

Grant City, Tuesday, 24 November

Climate normal for this date — 60-year average.

Average high42°

Average low26°

Average precipitation0.05 in

Chance of precipitation17%

Record high63° (2011)

Record low-1° (1985)

Wed, 2541° / 26°

0.03

41 °

Grant City, Wednesday, 25 November

Climate normal for this date — 60-year average.

Average high41°

Average low26°

Average precipitation0.03 in

Chance of precipitation25%

Record high63° (1960)

Record low-7° (1991)

Thu, 2640° / 26°

0.07

40 °

Grant City, Thursday, 26 November

Climate normal for this date — 60-year average.

Average high40°

Average low26°

Average precipitation0.07 in

Chance of precipitation30%

Record high62° (1990)

Record low-3° (1993)

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 Grant City, IA 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 Grant City, IA 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.