As of 10:03 CDT

Weather in Grant City, IA

61°

Grant City, Wednesday, 28 October, 10:03

Overcast. Feels like 61°. High 67°, low 55°.

Pressure30.00 inHg

Wind9.5 mph S

Humidity84%

Visibility6.2 mi

Dew point55°

See detailed hourly forecast

Monthly outlook for Grant City, IA: average high 54.8°, average low 45.2°. That is 2° above the climate normal for October. Precipitation is expected on 9 days (about 4.0 inches), against a normal of 4 days and 1.1 inches. The warmest day looks like 28 October (67.3°), the coolest 11 November (29°).

54.8°/45.2°

Average high / low

+2°

Above normal

9 / 4

Wet days / normal

4.0 in

Precipitation this month

Ten-day blocks vs climate normal

Period	Forecast high	Normal	Difference
28 October – 6 November	60.4°	53°	+4.1°
7 November – 16 November	45.6°	47.5°	-1.1°
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, 2962° / 43°

0.02

62 °

Grant City, Thursday, 29 October

Light rain. High 62°, low 43°.

Pressure30.21 inHg

Wind6.3 mph NE

Humidity53%

Visibility6.2 mi

Dew point41°

Fri, 3057° / 47°

1.01

57 °

Grant City, Friday, 30 October

Heavy rain. High 57°, low 47°.

Pressure30.21 inHg

Wind8.1 mph E

Humidity77%

Visibility6.2 mi

Dew point47°

Sat, 3167° / 50°

0.16

67 °

Grant City, Saturday, 31 October

Rain. High 67°, low 50°.

Pressure30.21 inHg

Wind5.6 mph SE

Humidity94%

Visibility2.3 mi

Dew point55°

Sun, 0165° / 49°

65 °

Grant City, Sunday, 1 November

Overcast. High 65°, low 49°.

Pressure30.21 inHg

Wind13.4 mph SE

Humidity80%

Visibility—

Dew point55°

Mon, 0263° / 59°

0.76

63 °

Grant City, Monday, 2 November

Rain. High 63°, low 59°.

Pressure29.83 inHg

Wind18.3 mph SE

Humidity92%

Visibility—

Dew point59°

Tue, 0360° / 53°

0.6

60 °

Grant City, Tuesday, 3 November

Rain. High 60°, low 53°.

Pressure29.88 inHg

Wind18.3 mph E

Humidity93%

Visibility—

Dew point52°

Wed, 0452° / 51°

0.24

52 °

Grant City, Wednesday, 4 November

Light rain. High 52°, low 51°.

Pressure29.85 inHg

Wind16.6 mph N

Humidity92%

Visibility—

Dew point49°

Thu, 0559° / 47°

59 °

Grant City, Thursday, 5 November

Clear. High 59°, low 47°.

Pressure29.85 inHg

Wind12 mph N

Humidity66%

Visibility—

Dew point45°

Fri, 0651° / 42°

51 °

Grant City, Friday, 6 November

Overcast. High 51°, low 42°.

Pressure30.09 inHg

Wind6.5 mph NE

Humidity46%

Visibility—

Dew point29°

Sat, 0748° / 41°

48 °

Grant City, Saturday, 7 November

Overcast. High 48°, low 41°.

Pressure30.33 inHg

Wind5.9 mph NE

Humidity53%

Visibility—

Dew point30°

Sun, 0851° / 42°

0.09

51 °

Grant City, Sunday, 8 November

Light rain. High 51°, low 42°.

Pressure30.21 inHg

Wind16.8 mph SE

Humidity78%

Visibility—

Dew point37°

Mon, 0949° / 44°

0.96

49 °

Grant City, Monday, 9 November

Rain. High 49°, low 44°.

Pressure29.91 inHg

Wind15.5 mph SE

Humidity96%

Visibility—

Dew point44°

Tue, 1043° / 39°

0.06

43 °

Grant City, Tuesday, 10 November

Light rain. High 43°, low 39°.

Pressure30.09 inHg

Wind20.1 mph N

Humidity90%

Visibility—

Dew point40°

Wed, 1140° / 29°

40 °

Grant City, Wednesday, 11 November

Clear. High 40°, low 29°.

Pressure30.27 inHg

Wind15.3 mph N

Humidity52%

Visibility—

Dew point21°

Thu, 1243° / 31°

43 °

Grant City, Thursday, 12 November

Overcast. High 43°, low 31°.

Pressure30.21 inHg

Wind6.1 mph E

Humidity59%

Visibility—

Dew point26°

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.