As of 07:20 CDT

Weather in Grant City, IA

48°

Grant City, Monday, 26 October, 07:20

Overcast. Feels like 44°. High 60°, low 48°.

Pressure30.36 inHg

Wind9.4 mph NE

Humidity81%

Visibility3.4 mi

Dew point43°

See detailed hourly forecast

Monthly outlook for Grant City, IA: average high 64°, average low 53.1°. That is 6.4° above the climate normal for October. Precipitation is expected on 9 days (about 2.9 inches), against a normal of 4 days and 1.1 inches. The warmest day looks like 28 October (72.7°), the coolest 26 October (48°).

64°/53.1°

Average high / low

+6.4°

Above normal

9 / 4

Wet days / normal

2.9 in

Precipitation this month

Ten-day blocks vs climate normal

Period	Forecast high	Normal	Difference
26 October – 4 November	62.9°	54°	+4.9°
5 November – 14 November	65.9°	48.3°	+9.7°
15 November – 24 November	at normal	44.4°	—

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).

Tue, 2765° / 54°

0.02

65 °

Grant City, Tuesday, 27 October

Light rain. High 65°, low 54°.

Pressure30.12 inHg

Wind3.7 mph SW

Humidity77%

Visibility6.2 mi

Dew point48°

Wed, 2873° / 57°

0.08

73 °

Grant City, Wednesday, 28 October

Light rain. High 73°, low 57°.

Pressure29.97 inHg

Wind11.5 mph S

Humidity61%

Visibility6.2 mi

Dew point55°

Thu, 2966° / 53°

0.03

66 °

Grant City, Thursday, 29 October

Light rain. High 66°, low 53°.

Pressure30.12 inHg

Wind5.2 mph NE

Humidity74%

Visibility6.2 mi

Dew point51°

Fri, 3065° / 52°

0.51

65 °

Grant City, Friday, 30 October

Rain. High 65°, low 52°.

Pressure30.06 inHg

Wind7.2 mph E

Humidity85%

Visibility—

Dew point57°

Sat, 3169° / 58°

0.53

69 °

Grant City, Saturday, 31 October

Rain. High 69°, low 58°.

Pressure30.06 inHg

Wind7.5 mph SW

Humidity71%

Visibility—

Dew point58°

Sun, 0165° / 55°

0.06

65 °

Grant City, Sunday, 1 November

Light rain. High 65°, low 55°.

Pressure30.03 inHg

Wind7.1 mph SE

Humidity64%

Visibility—

Dew point50°

Mon, 0257° / 55°

0.65

57 °

Grant City, Monday, 2 November

Rain. High 57°, low 55°.

Pressure29.88 inHg

Wind9.1 mph SE

Humidity94%

Visibility—

Dew point54°

Tue, 0354° / 49°

0.22

54 °

Grant City, Tuesday, 3 November

Light rain. High 54°, low 49°.

Pressure29.83 inHg

Wind19.3 mph NW

Humidity87%

Visibility—

Dew point50°

Wed, 0454° / 49°

54 °

Grant City, Wednesday, 4 November

Overcast. High 54°, low 49°.

Pressure30.06 inHg

Wind12.7 mph N

Humidity85%

Visibility—

Dew point47°

Thu, 0563° / 49°

63 °

Grant City, Thursday, 5 November

Overcast. High 63°, low 49°.

Pressure29.97 inHg

Wind11.1 mph SW

Humidity55%

Visibility—

Dew point42°

Fri, 0666° / 48°

66 °

Grant City, Friday, 6 November

Overcast. High 66°, low 48°.

Pressure29.88 inHg

Wind8.1 mph SW

Humidity50%

Visibility—

Dew point43°

Sat, 0769° / 53°

69 °

Grant City, Saturday, 7 November

Partly cloudy. High 69°, low 53°.

Pressure29.68 inHg

Wind7.8 mph SE

Humidity59%

Visibility—

Dew point50°

Sun, 0871° / 58°

0.02

71 °

Grant City, Sunday, 8 November

Light rain. High 71°, low 58°.

Pressure29.56 inHg

Wind20.9 mph SE

Humidity68%

Visibility—

Dew point58°

Mon, 0967° / 55°

0.61

67 °

Grant City, Monday, 9 November

Rain. High 67°, low 55°.

Pressure29.59 inHg

Wind16.8 mph S

Humidity65%

Visibility—

Dew point53°

Tue, 1060° / 55°

0.04

60 °

Grant City, Tuesday, 10 November

Light rain. High 60°, low 55°.

Pressure29.91 inHg

Wind9.5 mph NE

Humidity68%

Visibility—

Dew point48°

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

Wed, 1146° / 29°

0.07

46 °

Grant City, Wednesday, 11 November

Climate normal for this date — 60-year average.

Average high46°

Average low29°

Average precipitation0.07 in

Chance of precipitation17%

Record high69° (1964)

Record low5° (1986)

Thu, 1244° / 29°

0.07

44 °

Grant City, Thursday, 12 November

Climate normal for this date — 60-year average.

Average high44°

Average low29°

Average precipitation0.07 in

Chance of precipitation25%

Record high67° (2005)

Record low2° (2019)

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)

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.