As of 00:14 CDT

Weather in Gary, SD

58°

Gary, Wednesday, 7 October, 00:14

Clear. Feels like 56°. High 74°, low 48°.

Pressure29.88 inHg

Wind5.7 mph NW

Humidity58%

Visibility6.2 mi

Dew point44°

See detailed hourly forecast

Monthly outlook for Gary, SD: average high 61.8°, average low 45.6°. That is 2.1° above the climate normal for October. Precipitation is expected on 2 days (about 0.4 inches), against a normal of 4 days and 1.2 inches. The warmest day looks like 10 October (79.6°), the coolest 17 October (33.1°).

61.8°/45.6°

Average high / low

+2.1°

Above normal

2 / 4

Wet days / normal

0.4 in

Precipitation this month

Ten-day blocks vs climate normal

Period	Forecast high	Normal	Difference
7 October – 16 October	64.2°	59.2°	+2.8°
17 October – 26 October	57.8°	55.1°	+1.5°
27 October – 5 November	at normal	49.7°	—

October records over 66 years

90.5°1 October 2023All-time high

10.2°27 October 2020All-time low

Thu, 0865° / 44°

65 °

Gary, Thursday, 8 October

Mostly clear. High 65°, low 44°.

Pressure30.12 inHg

Wind4.4 mph S

Humidity42%

Visibility6.2 mi

Dew point38°

Fri, 0976° / 54°

76 °

Gary, Friday, 9 October

Partly cloudy. High 76°, low 54°.

Pressure29.83 inHg

Wind6.8 mph S

Humidity69%

Visibility6.2 mi

Dew point60°

Sat, 1080° / 65°

80 °

Gary, Saturday, 10 October

Clear. High 80°, low 65°.

Pressure29.59 inHg

Wind23.1 mph SW

Humidity50%

Visibility6.2 mi

Dew point55°

Sun, 1175° / 53°

75 °

Gary, Sunday, 11 October

Clear. High 75°, low 53°.

Pressure29.68 inHg

Wind22.4 mph SW

Humidity48%

Visibility—

Dew point53°

Mon, 1249° / 42°

49 °

Gary, Monday, 12 October

Overcast. High 49°, low 42°.

Pressure30.09 inHg

Wind16.2 mph N

Humidity73%

Visibility—

Dew point37°

Tue, 1361° / 43°

61 °

Gary, Tuesday, 13 October

Overcast. High 61°, low 43°.

Pressure30.03 inHg

Wind9.2 mph N

Humidity59%

Visibility—

Dew point41°

Wed, 1459° / 50°

0.09

59 °

Gary, Wednesday, 14 October

Light rain. High 59°, low 50°.

Pressure29.71 inHg

Wind11.1 mph SE

Humidity92%

Visibility—

Dew point55°

Thu, 1556° / 44°

0.33

56 °

Gary, Thursday, 15 October

Rain. High 56°, low 44°.

Pressure29.91 inHg

Wind24.1 mph NW

Humidity44%

Visibility—

Dew point28°

Fri, 1647° / 39°

47 °

Gary, Friday, 16 October

Clear. High 47°, low 39°.

Pressure30.00 inHg

Wind24.6 mph W

Humidity34%

Visibility—

Dew point19°

Sat, 1749° / 33°

49 °

Gary, Saturday, 17 October

Overcast. High 49°, low 33°.

Pressure30.30 inHg

Wind17.6 mph NW

Humidity44%

Visibility—

Dew point24°

Sun, 1861° / 38°

61 °

Gary, Sunday, 18 October

Overcast. High 61°, low 38°.

Pressure29.85 inHg

Wind17.1 mph SW

Humidity24%

Visibility—

Dew point21°

Mon, 1952° / 39°

52 °

Gary, Monday, 19 October

Overcast. High 52°, low 39°.

Pressure30.12 inHg

Wind6.9 mph NW

Humidity57%

Visibility—

Dew point34°

Tue, 2060° / 42°

60 °

Gary, Tuesday, 20 October

Overcast. High 60°, low 42°.

Pressure30.21 inHg

Wind7.5 mph SE

Humidity47%

Visibility—

Dew point36°

Wed, 2169° / 46°

69 °

Gary, Wednesday, 21 October

Partly cloudy. High 69°, low 46°.

Pressure30.03 inHg

Wind17 mph W

Humidity47%

Visibility—

Dew point42°

Thu, 2256° / 49°

56 °

Gary, Thursday, 22 October

Clear. High 56°, low 49°.

Pressure30.21 inHg

Wind23.1 mph NW

Humidity42%

Visibility—

Dew point32°

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

Fri, 2354° / 38°

0.07

54 °

Gary, Friday, 23 October

Climate normal for this date — 60-year average.

Average high54°

Average low38°

Average precipitation0.07 in

Chance of precipitation25%

Record high78° (2022)

Record low18° (2020)

Sat, 2454° / 38°

0.04

54 °

Gary, Saturday, 24 October

Climate normal for this date — 60-year average.

Average high54°

Average low38°

Average precipitation0.04 in

Chance of precipitation18%

Record high79° (1989)

Record low16° (2020)

Sun, 2553° / 38°

0.04

53 °

Gary, Sunday, 25 October

Climate normal for this date — 60-year average.

Average high53°

Average low38°

Average precipitation0.04 in

Chance of precipitation15%

Record high79° (1989)

Record low21° (2020)

Mon, 2654° / 38°

0.04

54 °

Gary, Monday, 26 October

Climate normal for this date — 60-year average.

Average high54°

Average low38°

Average precipitation0.04 in

Chance of precipitation13%

Record high78° (1989)

Record low11° (2020)

Tue, 2753° / 37°

0.1

53 °

Gary, Tuesday, 27 October

Climate normal for this date — 60-year average.

Average high53°

Average low37°

Average precipitation0.1 in

Chance of precipitation28%

Record high73° (1999)

Record low10° (2020)

Wed, 2852° / 37°

0.04

52 °

Gary, Wednesday, 28 October

Climate normal for this date — 60-year average.

Average high52°

Average low37°

Average precipitation0.04 in

Chance of precipitation15%

Record high74° (2024)

Record low20° (1967)

Thu, 2952° / 36°

0.07

52 °

Gary, Thursday, 29 October

Climate normal for this date — 60-year average.

Average high52°

Average low36°

Average precipitation0.07 in

Chance of precipitation25%

Record high72° (2004)

Record low21° (1991)

Fri, 3050° / 36°

0.09

50 °

Gary, Friday, 30 October

Climate normal for this date — 60-year average.

Average high50°

Average low36°

Average precipitation0.09 in

Chance of precipitation30%

Record high67° (1965)

Record low17° (1991)

Sat, 3150° / 34°

0.08

50 °

Gary, Saturday, 31 October

Climate normal for this date — 60-year average.

Average high50°

Average low34°

Average precipitation0.08 in

Chance of precipitation20%

Record high72° (1990)

Record low19° (1996)

Sun, 0149° / 35°

0.06

49 °

Gary, Sunday, 1 November

Climate normal for this date — 60-year average.

Average high49°

Average low35°

Average precipitation0.06 in

Chance of precipitation22%

Record high71° (2022)

Record low16° (1984)

Mon, 0248° / 34°

0.04

48 °

Gary, Monday, 2 November

Climate normal for this date — 60-year average.

Average high48°

Average low34°

Average precipitation0.04 in

Chance of precipitation15%

Record high72° (1978)

Record low10° (1991)

Tue, 0347° / 34°

0.04

47 °

Gary, Tuesday, 3 November

Climate normal for this date — 60-year average.

Average high47°

Average low34°

Average precipitation0.04 in

Chance of precipitation22%

Record high73° (1978)

Record low6° (1991)

Wed, 0448° / 32°

0.02

48 °

Gary, Wednesday, 4 November

Climate normal for this date — 60-year average.

Average high48°

Average low32°

Average precipitation0.02 in

Chance of precipitation12%

Record high73° (2020)

Record low-3° (1991)

Thu, 0548° / 33°

0.04

48 °

Gary, Thursday, 5 November

Climate normal for this date — 60-year average.

Average high48°

Average low33°

Average precipitation0.04 in

Chance of precipitation18%

Record high70° (2016)

Record low9° (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 Gary, SD 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 Gary, SD 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.