As of 00:41 CDT

Weather in Grant City, IA

54°

Grant City, Saturday, 31 October, 00:41

Overcast. Feels like 53°. High 62°, low 52°.

Pressure30.21 inHg

Wind7.9 mph SE

Humidity87%

Visibility6.2 mi

Dew point50°

See detailed hourly forecast

Monthly outlook for Grant City, IA: average high 58.9°, average low 47.2°. That is 5.2° above the climate normal for October. Precipitation is expected on 3 days (about 1.0 inches), against a normal of 3 days and 1.0 inches. The warmest day looks like 10 November (67.5°), the coolest 14 November (35.6°).

58.9°/47.2°

Average high / low

+5.2°

Above normal

3 / 3

Wet days / normal

1.0 in

Precipitation this month

Ten-day blocks vs climate normal

Period	Forecast high	Normal	Difference
31 October – 9 November	61.5°	51.5°	+5.5°
10 November – 19 November	54.7°	46.2°	+4.7°
20 November – 29 November	at normal	40.5°	—

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).

Sun, 0167° / 54°

67 °

Grant City, Sunday, 1 November

Overcast. High 67°, low 54°.

Pressure30.21 inHg

Wind8 mph SE

Humidity75%

Visibility6.2 mi

Dew point53°

Mon, 0265° / 59°

0.59

65 °

Grant City, Monday, 2 November

Rain. High 65°, low 59°.

Pressure29.77 inHg

Wind19.1 mph SE

Humidity95%

Visibility2.6 mi

Dew point58°

Tue, 0364° / 55°

0.28

64 °

Grant City, Tuesday, 3 November

Rain. High 64°, low 55°.

Pressure29.74 inHg

Wind10.4 mph N

Humidity87%

Visibility6.2 mi

Dew point56°

Wed, 0451° / 45°

51 °

Grant City, Wednesday, 4 November

Overcast. High 51°, low 45°.

Pressure29.97 inHg

Wind14.8 mph N

Humidity65%

Visibility—

Dew point38°

Thu, 0558° / 43°

58 °

Grant City, Thursday, 5 November

Partly cloudy. High 58°, low 43°.

Pressure29.91 inHg

Wind12.5 mph N

Humidity58%

Visibility—

Dew point40°

Fri, 0660° / 45°

60 °

Grant City, Friday, 6 November

Clear. High 60°, low 45°.

Pressure30.03 inHg

Wind7.4 mph SE

Humidity62%

Visibility—

Dew point44°

Sat, 0760° / 47°

60 °

Grant City, Saturday, 7 November

Overcast. High 60°, low 47°.

Pressure30.03 inHg

Wind11.3 mph S

Humidity66%

Visibility—

Dew point46°

Sun, 0862° / 49°

62 °

Grant City, Sunday, 8 November

Mostly clear. High 62°, low 49°.

Pressure30.15 inHg

Wind6.3 mph NW

Humidity57%

Visibility—

Dew point43°

Mon, 0965° / 47°

65 °

Grant City, Monday, 9 November

Mostly clear. High 65°, low 47°.

Pressure30.12 inHg

Wind7.4 mph SW

Humidity40%

Visibility—

Dew point35°

Tue, 1067° / 49°

67 °

Grant City, Tuesday, 10 November

Clear. High 67°, low 49°.

Pressure29.91 inHg

Wind13.8 mph SW

Humidity43%

Visibility—

Dew point41°

Wed, 1159° / 49°

59 °

Grant City, Wednesday, 11 November

Mostly clear. High 59°, low 49°.

Pressure29.94 inHg

Wind13.2 mph NW

Humidity52%

Visibility—

Dew point39°

Thu, 1256° / 46°

56 °

Grant City, Thursday, 12 November

Clear. High 56°, low 46°.

Pressure29.88 inHg

Wind21.7 mph NW

Humidity39%

Visibility—

Dew point30°

Fri, 1349° / 40°

49 °

Grant City, Friday, 13 November

Clear. High 49°, low 40°.

Pressure30.15 inHg

Wind15.6 mph NW

Humidity47%

Visibility—

Dew point28°

Sat, 1448° / 36°

48 °

Grant City, Saturday, 14 November

Overcast. High 48°, low 36°.

Pressure30.12 inHg

Wind7.2 mph SE

Humidity44%

Visibility—

Dew point24°

Sun, 1549° / 40°

49 °

Grant City, Sunday, 15 November

Overcast. High 49°, low 40°.

Pressure29.94 inHg

Wind11.1 mph SE

Humidity54%

Visibility—

Dew point32°

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

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)

Fri, 2737° / 24°

0.08

37 °

Grant City, Friday, 27 November

Climate normal for this date — 60-year average.

Average high37°

Average low24°

Average precipitation0.08 in

Chance of precipitation30%

Record high64° (1998)

Record low0° (2014)

Sat, 2837° / 22°

0.07

37 °

Grant City, Saturday, 28 November

Climate normal for this date — 60-year average.

Average high37°

Average low22°

Average precipitation0.07 in

Chance of precipitation18%

Record high64° (1998)

Record low2° (1977)

Sun, 2938° / 24°

0.08

38 °

Grant City, Sunday, 29 November

Climate normal for this date — 60-year average.

Average high38°

Average low24°

Average precipitation0.08 in

Chance of precipitation30%

Record high67° (1998)

Record low1° (1985)

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.