As of 05:05 CDT

Weather in Grant, IA

48°

Grant, Thursday, 8 October, 05:05

Partly cloudy. Feels like 46°. High 80°, low 48°.

Pressure30.06 inHg

Wind4.5 mph NE

Humidity90%

Visibility6.2 mi

Dew point45°

See detailed hourly forecast

Monthly outlook for Grant, IA: average high 74.2°, average low 56.1°. That is 6.2° above the climate normal for October. Precipitation is expected on 6 days (about 1.2 inches), against a normal of 4 days and 1.4 inches. The warmest day looks like 12 October (85.8°), the coolest 18 October (46.6°).

74.2°/56.1°

Average high / low

+6.2°

Above normal

6 / 4

Wet days / normal

1.2 in

Precipitation this month

Ten-day blocks vs climate normal

Period	Forecast high	Normal	Difference
8 October – 17 October	76.5°	64.2°	+6.8°
18 October – 27 October	70.5°	60°	+5.8°
28 October – 6 November	at normal	54.8°	—

October records over 66 years

92.5°5 October 2024All-time high

13.6°27 October 1997All-time low

Climate normals and records are computed from the nearest reference point — Lewis (12 mi).

Fri, 0985° / 59°

0.33

85 °

Grant, Friday, 9 October

Heavy rain. High 85°, low 59°.

Pressure29.94 inHg

Wind11.6 mph S

Humidity57%

Visibility6.2 mi

Dew point59°

Sat, 1082° / 64°

82 °

Grant, Saturday, 10 October

Clear. High 82°, low 64°.

Pressure29.91 inHg

Wind14.1 mph S

Humidity56%

Visibility6.2 mi

Dew point60°

Sun, 1182° / 62°

82 °

Grant, Sunday, 11 October

Mostly clear. High 82°, low 62°.

Pressure29.88 inHg

Wind11.9 mph S

Humidity57%

Visibility6.2 mi

Dew point60°

Mon, 1286° / 68°

86 °

Grant, Monday, 12 October

Clear. High 86°, low 68°.

Pressure29.71 inHg

Wind13.8 mph S

Humidity50%

Visibility—

Dew point60°

Tue, 1364° / 54°

0.33

64 °

Grant, Tuesday, 13 October

Rain. High 64°, low 54°.

Pressure30.06 inHg

Wind13 mph N

Humidity67%

Visibility—

Dew point46°

Wed, 1483° / 55°

83 °

Grant, Wednesday, 14 October

Clear. High 83°, low 55°.

Pressure29.77 inHg

Wind23.7 mph S

Humidity59%

Visibility—

Dew point58°

Thu, 1585° / 66°

0.06

85 °

Grant, Thursday, 15 October

Light rain. High 85°, low 66°.

Pressure29.62 inHg

Wind23.9 mph S

Humidity43%

Visibility—

Dew point59°

Fri, 1661° / 50°

61 °

Grant, Friday, 16 October

Mostly clear. High 61°, low 50°.

Pressure30.24 inHg

Wind16.2 mph NW

Humidity55%

Visibility—

Dew point41°

Sat, 1757° / 48°

0.01

57 °

Grant, Saturday, 17 October

Light rain. High 57°, low 48°.

Pressure30.42 inHg

Wind8.2 mph SE

Humidity60%

Visibility—

Dew point40°

Sun, 1866° / 47°

0.06

66 °

Grant, Sunday, 18 October

Light rain. High 66°, low 47°.

Pressure30.21 inHg

Wind7.4 mph S

Humidity55%

Visibility—

Dew point45°

Mon, 1961° / 56°

0.25

61 °

Grant, Monday, 19 October

Light rain. High 61°, low 56°.

Pressure30.09 inHg

Wind6.3 mph NW

Humidity91%

Visibility—

Dew point57°

Tue, 2071° / 52°

71 °

Grant, Tuesday, 20 October

Clear. High 71°, low 52°.

Pressure30.12 inHg

Wind7 mph S

Humidity57%

Visibility—

Dew point50°

Wed, 2172° / 53°

72 °

Grant, Wednesday, 21 October

Clear. High 72°, low 53°.

Pressure29.88 inHg

Wind14.5 mph S

Humidity54%

Visibility—

Dew point50°

Thu, 2273° / 60°

0.13

73 °

Grant, Thursday, 22 October

Light rain. High 73°, low 60°.

Pressure29.53 inHg

Wind16 mph S

Humidity71%

Visibility—

Dew point60°

Fri, 2380° / 57°

80 °

Grant, Friday, 23 October

Clear. High 80°, low 57°.

Pressure29.65 inHg

Wind15.3 mph S

Humidity59%

Visibility—

Dew point60°

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

Sat, 2459° / 43°

0.11

59 °

Grant, Saturday, 24 October

Climate normal for this date — 60-year average.

Average high59°

Average low43°

Average precipitation0.11 in

Chance of precipitation28%

Record high76° (2012)

Record low24° (2020)

Sun, 2558° / 42°

0.05

58 °

Grant, Sunday, 25 October

Climate normal for this date — 60-year average.

Average high58°

Average low42°

Average precipitation0.05 in

Chance of precipitation23%

Record high78° (1989)

Record low27° (1962)

Mon, 2659° / 42°

0.08

59 °

Grant, Monday, 26 October

Climate normal for this date — 60-year average.

Average high59°

Average low42°

Average precipitation0.08 in

Chance of precipitation28%

Record high76° (1989)

Record low23° (2020)

Tue, 2758° / 41°

0.06

58 °

Grant, Tuesday, 27 October

Climate normal for this date — 60-year average.

Average high58°

Average low41°

Average precipitation0.06 in

Chance of precipitation17%

Record high82° (1999)

Record low14° (1997)

Wed, 2857° / 40°

0.07

57 °

Grant, Wednesday, 28 October

Climate normal for this date — 60-year average.

Average high57°

Average low40°

Average precipitation0.07 in

Chance of precipitation17%

Record high79° (2016)

Record low23° (1967)

Thu, 2958° / 41°

0.09

58 °

Grant, Thursday, 29 October

Climate normal for this date — 60-year average.

Average high58°

Average low41°

Average precipitation0.09 in

Chance of precipitation23%

Record high81° (2024)

Record low19° (1980)

Fri, 3057° / 41°

0.12

57 °

Grant, Friday, 30 October

Climate normal for this date — 60-year average.

Average high57°

Average low41°

Average precipitation0.12 in

Chance of precipitation30%

Record high76° (2024)

Record low22° (1991)

Sat, 3155° / 40°

0.11

55 °

Grant, Saturday, 31 October

Climate normal for this date — 60-year average.

Average high55°

Average low40°

Average precipitation0.11 in

Chance of precipitation30%

Record high76° (1968)

Record low19° (1993)

Sun, 0155° / 39°

0.16

55 °

Grant, Sunday, 1 November

Climate normal for this date — 60-year average.

Average high55°

Average low39°

Average precipitation0.16 in

Chance of precipitation32%

Record high76° (1990)

Record low21° (1991)

Mon, 0253° / 38°

0.08

53 °

Grant, Monday, 2 November

Climate normal for this date — 60-year average.

Average high53°

Average low38°

Average precipitation0.08 in

Chance of precipitation23%

Record high74° (1964)

Record low9° (1991)

Tue, 0354° / 38°

0.09

54 °

Grant, Tuesday, 3 November

Climate normal for this date — 60-year average.

Average high54°

Average low38°

Average precipitation0.09 in

Chance of precipitation22%

Record high76° (2022)

Record low6° (1991)

Wed, 0453° / 37°

0.07

53 °

Grant, Wednesday, 4 November

Climate normal for this date — 60-year average.

Average high53°

Average low37°

Average precipitation0.07 in

Chance of precipitation15%

Record high70° (1978)

Record low1° (1991)

Thu, 0553° / 37°

0.05

53 °

Grant, Thursday, 5 November

Climate normal for this date — 60-year average.

Average high53°

Average low37°

Average precipitation0.05 in

Chance of precipitation22%

Record high72° (2015)

Record low19° (1967)

Fri, 0653° / 37°

0.06

53 °

Grant, Friday, 6 November

Climate normal for this date — 60-year average.

Average high53°

Average low37°

Average precipitation0.06 in

Chance of precipitation17%

Record high73° (1980)

Record low13° (1991)

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, 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, 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.