As of 17:33 MDT

Weather in Hanna, SD

50°

Hanna, Wednesday, 28 October, 17:33

Clear. Feels like 50°. High 50°, low 33°.

Pressure30.00 inHg

Wind2.7 mph SW

Humidity38%

Visibility6.2 mi

Dew point26°

See detailed hourly forecast

Monthly outlook for Hanna, SD: average high 45.8°, average low 30.5°. That is 0.8° below the climate normal for October. Precipitation is expected on 2 days (about 1.2 inches), against a normal of 4 days and 0.8 inches. The warmest day looks like 1 November (60.7°), the coolest 5 November (22.7°).

45.8°/30.5°

Average high / low

−0.8°

Below normal

2 / 4

Wet days / normal

1.2 in

Precipitation this month

Ten-day blocks vs climate normal

Period	Forecast high	Normal	Difference
28 October – 6 November	48.4°	48.6°	-0.1°
7 November – 16 November	41.4°	44.9°	-1.9°
17 November – 26 November	at normal	40.5°	—

October records over 66 years

86.9°4 October 1963All-time high

-5.4°30 October 1991All-time low

Climate normals and records are computed from the nearest reference point — Mountain Plains (14 mi).

Thu, 2955° / 34°

55 °

Hanna, Thursday, 29 October

Clear. High 55°, low 34°.

Pressure30.03 inHg

Wind5.8 mph W

Humidity39%

Visibility6.2 mi

Dew point20°

Fri, 3058° / 37°

58 °

Hanna, Friday, 30 October

Overcast. High 58°, low 37°.

Pressure30.00 inHg

Wind7.2 mph SE

Humidity51%

Visibility6.2 mi

Dew point38°

Sat, 3159° / 43°

59 °

Hanna, Saturday, 31 October

Overcast. High 59°, low 43°.

Pressure29.94 inHg

Wind3.8 mph S

Humidity54%

Visibility6.2 mi

Dew point42°

Sun, 0161° / 42°

0.09

61 °

Hanna, Sunday, 1 November

Light rain. High 61°, low 42°.

Pressure29.85 inHg

Wind8.4 mph S

Humidity38%

Visibility6.2 mi

Dew point35°

Mon, 0247° / 31°

1.01

47 °

Hanna, Monday, 2 November

Snow. High 47°, low 31°.

Pressure29.94 inHg

Wind18.8 mph NW

Humidity100%

Visibility—

Dew point40°

Tue, 0336° / 28°

0.02

36 °

Hanna, Tuesday, 3 November

Light snow. High 36°, low 28°.

Pressure30.27 inHg

Wind9.8 mph NW

Humidity97%

Visibility—

Dew point33°

Wed, 0439° / 24°

39 °

Hanna, Wednesday, 4 November

Overcast. High 39°, low 24°.

Pressure30.06 inHg

Wind6.3 mph NW

Humidity98%

Visibility—

Dew point37°

Thu, 0538° / 23°

38 °

Hanna, Thursday, 5 November

Clear. High 38°, low 23°.

Pressure29.94 inHg

Wind4.3 mph SW

Humidity79%

Visibility—

Dew point29°

Fri, 0641° / 25°

41 °

Hanna, Friday, 6 November

Clear. High 41°, low 25°.

Pressure29.80 inHg

Wind4.7 mph SW

Humidity78%

Visibility—

Dew point33°

Sat, 0746° / 28°

46 °

Hanna, Saturday, 7 November

Partly cloudy. High 46°, low 28°.

Pressure29.77 inHg

Wind4.9 mph SW

Humidity66%

Visibility—

Dew point33°

Sun, 0844° / 30°

44 °

Hanna, Sunday, 8 November

Overcast. High 44°, low 30°.

Pressure29.97 inHg

Wind6.1 mph NW

Humidity77%

Visibility—

Dew point36°

Mon, 0939° / 30°

39 °

Hanna, Monday, 9 November

Mostly clear. High 39°, low 30°.

Pressure30.15 inHg

Wind11.8 mph NW

Humidity66%

Visibility—

Dew point26°

Tue, 1036° / 24°

36 °

Hanna, Tuesday, 10 November

Overcast. High 36°, low 24°.

Pressure30.09 inHg

Wind13.4 mph NW

Humidity69%

Visibility—

Dew point27°

Wed, 1144° / 24°

44 °

Hanna, Wednesday, 11 November

Overcast. High 44°, low 24°.

Pressure30.03 inHg

Wind7.9 mph NW

Humidity54%

Visibility—

Dew point24°

Thu, 1240° / 33°

0.03

40 °

Hanna, Thursday, 12 November

Snow. High 40°, low 33°.

Pressure30.12 inHg

Wind10.6 mph NW

Humidity100%

Visibility—

Dew point33°

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

Fri, 1345° / 28°

0.05

45 °

Hanna, Friday, 13 November

Climate normal for this date — 60-year average.

Average high45°

Average low28°

Average precipitation0.05 in

Chance of precipitation27%

Record high68° (1999)

Record low-10° (2014)

Sat, 1445° / 29°

0.04

45 °

Hanna, Saturday, 14 November

Climate normal for this date — 60-year average.

Average high45°

Average low29°

Average precipitation0.04 in

Chance of precipitation25%

Record high70° (2025)

Record low-5° (2014)

Sun, 1545° / 28°

0.03

45 °

Hanna, Sunday, 15 November

Climate normal for this date — 60-year average.

Average high45°

Average low28°

Average precipitation0.03 in

Chance of precipitation15%

Record high65° (1999)

Record low-1° (2014)

Mon, 1645° / 28°

0.02

45 °

Hanna, Monday, 16 November

Climate normal for this date — 60-year average.

Average high45°

Average low28°

Average precipitation0.02 in

Chance of precipitation13%

Record high66° (2001)

Record low-1° (2014)

Tue, 1743° / 28°

0.04

43 °

Hanna, Tuesday, 17 November

Climate normal for this date — 60-year average.

Average high43°

Average low28°

Average precipitation0.04 in

Chance of precipitation25%

Record high66° (1999)

Record low2° (1961)

Wed, 1843° / 26°

0.05

43 °

Hanna, Wednesday, 18 November

Climate normal for this date — 60-year average.

Average high43°

Average low26°

Average precipitation0.05 in

Chance of precipitation22%

Record high66° (2008)

Record low1° (2022)

Thu, 1941° / 26°

0.04

41 °

Hanna, Thursday, 19 November

Climate normal for this date — 60-year average.

Average high41°

Average low26°

Average precipitation0.04 in

Chance of precipitation23%

Record high62° (1989)

Record low-2° (1985)

Fri, 2042° / 25°

0.02

42 °

Hanna, Friday, 20 November

Climate normal for this date — 60-year average.

Average high42°

Average low25°

Average precipitation0.02 in

Chance of precipitation12%

Record high63° (1990)

Record low-12° (1985)

Sat, 2142° / 25°

0.02

42 °

Hanna, Saturday, 21 November

Climate normal for this date — 60-year average.

Average high42°

Average low25°

Average precipitation0.02 in

Chance of precipitation18%

Record high64° (2012)

Record low-8° (1977)

Sun, 2241° / 25°

0.03

41 °

Hanna, Sunday, 22 November

Climate normal for this date — 60-year average.

Average high41°

Average low25°

Average precipitation0.03 in

Chance of precipitation23%

Record high60° (2017)

Record low-10° (1985)

Mon, 2339° / 24°

0.03

39 °

Hanna, Monday, 23 November

Climate normal for this date — 60-year average.

Average high39°

Average low24°

Average precipitation0.03 in

Chance of precipitation17%

Record high68° (2017)

Record low-11° (1985)

Tue, 2441° / 24°

0.02

41 °

Hanna, Tuesday, 24 November

Climate normal for this date — 60-year average.

Average high41°

Average low24°

Average precipitation0.02 in

Chance of precipitation17%

Record high64° (1990)

Record low-8° (1993)

Wed, 2539° / 23°

0.04

39 °

Hanna, Wednesday, 25 November

Climate normal for this date — 60-year average.

Average high39°

Average low23°

Average precipitation0.04 in

Chance of precipitation28%

Record high62° (2022)

Record low-5° (1993)

Thu, 2636° / 22°

0.08

36 °

Hanna, Thursday, 26 November

Climate normal for this date — 60-year average.

Average high36°

Average low22°

Average precipitation0.08 in

Chance of precipitation38%

Record high66° (2017)

Record low-9° (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 Hanna, 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 Hanna, 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.