As of 09:50 CDT

Weather in Grant City, IA

66°Current weather

Grant City, Saturday, 24 October, 09:50

Mostly clear. Feels like 66°. High 76°, low 58°.

Pressure30.18 inHg
Wind9.7 mph S
Humidity61%
Visibility6.2 mi
Dew point53°

Monthly outlook for Grant City, IA: average high 63.8°, average low 50.9°. That is 5.6° above the climate normal for October. Precipitation is expected on 8 days (about 1.7 inches), against a normal of 4 days and 1.0 inches. The warmest day looks like 24 October (75.6°), the coolest 4 November (40.1°).

63.8°/50.9°
Average high / low
+5.6°
Above normal
8 / 4
Wet days / normal
1.7 in
Precipitation this month

Ten-day blocks vs climate normal

PeriodForecast highNormalDifference
24 October – 2 November65.8°55.2°+5.9°
3 November – 12 November60.4°49.4°+6.1°
13 November – 22 Novemberat normal45.3°—

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, 2570° / 51°0Overcast
70 °Overcast

Grant City, Sunday, 25 October

Overcast. High 70°, low 51°.

Pressure30.36 inHg
Wind5.4 mph NE
Humidity66%
Visibility6.2 mi
Dew point51°
Mon, 2670° / 51°0.08Light rain
70 °Light rain

Grant City, Monday, 26 October

Light rain. High 70°, low 51°.

Pressure30.27 inHg
Wind7.8 mph E
Humidity65%
Visibility6.2 mi
Dew point48°
Tue, 2769° / 57°0.11Rain
69 °Rain

Grant City, Tuesday, 27 October

Rain. High 69°, low 57°.

Pressure30.06 inHg
Wind10.6 mph S
Humidity62%
Visibility6.2 mi
Dew point53°
Wed, 2870° / 56°0.34Rain
70 °Rain

Grant City, Wednesday, 28 October

Rain. High 70°, low 56°.

Pressure30.03 inHg
Wind12.9 mph S
Humidity72%
Visibility—
Dew point56°
Thu, 2967° / 53°0.02Light rain
67 °Light rain

Grant City, Thursday, 29 October

Light rain. High 67°, low 53°.

Pressure30.15 inHg
Wind7 mph N
Humidity62%
Visibility—
Dew point49°
Fri, 3060° / 52°0.09Light rain
60 °Light rain

Grant City, Friday, 30 October

Light rain. High 60°, low 52°.

Pressure30.18 inHg
Wind14 mph SE
Humidity78%
Visibility—
Dew point49°
Sat, 3160° / 56°0.44Rain
60 °Rain

Grant City, Saturday, 31 October

Rain. High 60°, low 56°.

Pressure29.97 inHg
Wind18.2 mph S
Humidity75%
Visibility—
Dew point52°
Sun, 0160° / 49°0.36Rain
60 °Rain

Grant City, Sunday, 1 November

Rain. High 60°, low 49°.

Pressure29.68 inHg
Wind17 mph W
Humidity94%
Visibility—
Dew point58°
Mon, 0257° / 46°0.21Rain
57 °Rain

Grant City, Monday, 2 November

Rain. High 57°, low 46°.

Pressure30.21 inHg
Wind28.2 mph N
Humidity45%
Visibility—
Dew point33°
Tue, 0355° / 41°0Clear
55 °Clear

Grant City, Tuesday, 3 November

Clear. High 55°, low 41°.

Pressure30.18 inHg
Wind7.7 mph W
Humidity44%
Visibility—
Dew point31°
Wed, 0451° / 40°0Overcast
51 °Overcast

Grant City, Wednesday, 4 November

Overcast. High 51°, low 40°.

Pressure30.12 inHg
Wind13.4 mph SE
Humidity56%
Visibility—
Dew point32°
Thu, 0562° / 46°0Overcast
62 °Overcast

Grant City, Thursday, 5 November

Overcast. High 62°, low 46°.

Pressure29.88 inHg
Wind17.1 mph S
Humidity61%
Visibility—
Dew point44°
Fri, 0666° / 55°0.01Light rain
66 °Light rain

Grant City, Friday, 6 November

Light rain. High 66°, low 55°.

Pressure29.85 inHg
Wind15.4 mph SW
Humidity74%
Visibility—
Dew point56°
Sat, 0769° / 55°0.06Light rain
69 °Light rain

Grant City, Saturday, 7 November

Light rain. High 69°, low 55°.

Pressure29.77 inHg
Wind18.3 mph NW
Humidity61%
Visibility—
Dew point54°
Sun, 0860° / 49°0Clear
60 °Clear

Grant City, Sunday, 8 November

Clear. High 60°, low 49°.

Pressure30.21 inHg
Wind13 mph NW
Humidity32%
Visibility—
Dew point28°
From day 17 onward the outlook is built from 60-year climate statistics
Mon, 0950° / 34°0.11Climate normal
50 °Climate normal

Grant City, Monday, 9 November

Climate normal for this date — 60-year average.

Average high50°
Average low34°
Average precipitation0.11 in
Chance of precipitation33%
Record high73° (2022)
Record low17° (2018)
Tue, 1047° / 31°0.09Climate normal
47 °Climate normal

Grant City, Tuesday, 10 November

Climate normal for this date — 60-year average.

Average high47°
Average low31°
Average precipitation0.09 in
Chance of precipitation28%
Record high74° (2012)
Record low11° (2018)
Wed, 1146° / 29°0.07Climate normal
46 °Climate normal

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°0.07Climate normal
44 °Climate normal

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°0.06Climate normal
46 °Climate normal

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°0.03Climate normal
46 °Climate normal

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°0.06Climate normal
47 °Climate normal

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°0.05Climate normal
47 °Climate normal

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°0.07Climate normal
47 °Climate normal

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°0.07Climate normal
46 °Climate normal

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°0.07Climate normal
45 °Climate normal

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°0.09Climate normal
43 °Climate normal

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°0.04Climate normal
43 °Climate normal

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°0.03Climate normal
43 °Climate normal

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)

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.