Monthly outlook for Hanna, SD: average high 49.2°, average low 34.5°. That is 0.1° above the climate normal for October. Precipitation is expected on 2 days (about 0.2 inches), against a normal of 4 days and 0.8 inches. The warmest day looks like 7 November (62.2°), the coolest 25 October (27.3°).
49.2°/34.5°
Average high / low
+0.1°
Above normal
2 / 4
Wet days / normal
0.2 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
25 October – 3 November
47.7°
50.2°
-1.4°
4 November – 13 November
51.7°
46°
+3.2°
14 November – 23 November
at normal
42.4°
—
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).
Mon, 2634° / 31°0.14
34 °
Hanna, Monday, 26 October
Snow. High 34°, low 31°.
Pressure30.27 inHg
Wind3.5 mph E
Humidity94%
Visibility2.2 mi
Dew point34°
Tue, 2750° / 34°0
50 °
Hanna, Tuesday, 27 October
Clear. High 50°, low 34°.
Pressure29.71 inHg
Wind23.6 mph SW
Humidity51%
Visibility6.2 mi
Dew point26°
Wed, 2851° / 34°0
51 °
Hanna, Wednesday, 28 October
Clear. High 51°, low 34°.
Pressure29.94 inHg
Wind5.8 mph W
Humidity45%
Visibility6.2 mi
Dew point18°
Thu, 2952° / 35°0
52 °
Hanna, Thursday, 29 October
Partly cloudy. High 52°, low 35°.
Pressure30.06 inHg
Wind9.6 mph SW
Humidity43%
Visibility—
Dew point27°
Fri, 3055° / 37°0
55 °
Hanna, Friday, 30 October
Overcast. High 55°, low 37°.
Pressure30.00 inHg
Wind15.6 mph S
Humidity61%
Visibility—
Dew point37°
Sat, 3155° / 39°0
55 °
Hanna, Saturday, 31 October
Overcast. High 55°, low 39°.
Pressure29.83 inHg
Wind6.8 mph S
Humidity43%
Visibility—
Dew point32°
Sun, 0153° / 38°0
53 °
Hanna, Sunday, 1 November
Overcast. High 53°, low 38°.
Pressure29.77 inHg
Wind17.3 mph S
Humidity39%
Visibility—
Dew point27°
Mon, 0240° / 28°0.02
40 °
Hanna, Monday, 2 November
Light snow. High 40°, low 28°.
Pressure29.91 inHg
Wind13.1 mph NW
Humidity40%
Visibility—
Dew point15°
Tue, 0346° / 30°0
46 °
Hanna, Tuesday, 3 November
Clear. High 46°, low 30°.
Pressure29.94 inHg
Wind10.9 mph W
Humidity36%
Visibility—
Dew point17°
Wed, 0450° / 32°0
50 °
Hanna, Wednesday, 4 November
Partly cloudy. High 50°, low 32°.
Pressure29.85 inHg
Wind6.3 mph SW
Humidity23%
Visibility—
Dew point11°
Thu, 0554° / 34°0
54 °
Hanna, Thursday, 5 November
Overcast. High 54°, low 34°.
Pressure29.88 inHg
Wind8.2 mph SW
Humidity25%
Visibility—
Dew point15°
Fri, 0661° / 41°0
61 °
Hanna, Friday, 6 November
Overcast. High 61°, low 41°.
Pressure29.74 inHg
Wind10.8 mph W
Humidity30%
Visibility—
Dew point26°
Sat, 0762° / 46°0
62 °
Hanna, Saturday, 7 November
Overcast. High 62°, low 46°.
Pressure29.44 inHg
Wind17.4 mph SW
Humidity25%
Visibility—
Dew point24°
Sun, 0844° / 34°0.05
44 °
Hanna, Sunday, 8 November
Light snow. High 44°, low 34°.
Pressure29.74 inHg
Wind15.7 mph NW
Humidity59%
Visibility—
Dew point26°
Mon, 0939° / 31°0.03
39 °
Hanna, Monday, 9 November
Light snow. High 39°, low 31°.
Pressure29.88 inHg
Wind22.9 mph NW
Humidity52%
Visibility—
Dew point22°
From day 17 onward the outlook is built from 60-year climate statistics
Tue, 1045° / 26°0.05
45 °
Hanna, Tuesday, 10 November
Climate normal for this date — 60-year average.
Average high45°
Average low26°
Average precipitation0.05 in
Chance of precipitation23%
Record high67° (2007)
Record low-6° (1986)
Wed, 1142° / 26°0.02
42 °
Hanna, Wednesday, 11 November
Climate normal for this date — 60-year average.
Average high42°
Average low26°
Average precipitation0.02 in
Chance of precipitation25%
Record high67° (2005)
Record low0° (2014)
Thu, 1245° / 27°0.02
45 °
Hanna, Thursday, 12 November
Climate normal for this date — 60-year average.
Average high45°
Average low27°
Average precipitation0.02 in
Chance of precipitation18%
Record high73° (1999)
Record low-9° (1986)
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)
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.