Monthly outlook for Hanna, SD: average high 47.2°, average low 29.4°. That is 1.8° below the climate normal for October. Precipitation is expected on 4 days (about 1.0 inches), against a normal of 4 days and 0.8 inches. The warmest day looks like 23 October (67.5°), the coolest 3 November (16.8°).
47.2°/29.4°
Average high / low
−1.8°
Below normal
4 / 4
Wet days / normal
1.0 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
22 October – 31 October
47.9°
52.1°
-2.3°
1 November – 10 November
46.1°
47°
-0.5°
11 November – 20 November
at normal
43.5°
—
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).
Fri, 2367° / 43°0
67 °
Hanna, Friday, 23 October
Clear. High 67°, low 43°.
Pressure29.68 inHg
Wind16.6 mph SW
Humidity29%
Visibility6.2 mi
Dew point32°
Sat, 2444° / 28°0.02
44 °
Hanna, Saturday, 24 October
Light rain. High 44°, low 28°.
Pressure30.39 inHg
Wind7.9 mph NW
Humidity56%
Visibility6.2 mi
Dew point9°
Sun, 2546° / 33°0.15
46 °
Hanna, Sunday, 25 October
Rain. High 46°, low 33°.
Pressure30.27 inHg
Wind6.7 mph SE
Humidity53%
Visibility6.2 mi
Dew point23°
Mon, 2637° / 32°0.39
37 °
Hanna, Monday, 26 October
Snow. High 37°, low 32°.
Pressure30.30 inHg
Wind3.6 mph SE
Humidity97%
Visibility2.2 mi
Dew point36°
Tue, 2755° / 32°0.03
55 °
Hanna, Tuesday, 27 October
Light rain. High 55°, low 32°.
Pressure29.88 inHg
Wind10.2 mph SW
Humidity49%
Visibility—
Dew point32°
Wed, 2840° / 23°0.22
40 °
Hanna, Wednesday, 28 October
Snow. High 40°, low 23°.
Pressure30.09 inHg
Wind18.6 mph NW
Humidity96%
Visibility—
Dew point28°
Thu, 2945° / 22°0
45 °
Hanna, Thursday, 29 October
Overcast. High 45°, low 22°.
Pressure30.06 inHg
Wind6.2 mph S
Humidity45%
Visibility—
Dew point20°
Fri, 3038° / 29°0
38 °
Hanna, Friday, 30 October
Light rain. High 38°, low 29°.
Pressure29.85 inHg
Wind8.7 mph SE
Humidity92%
Visibility—
Dew point34°
Sat, 3139° / 24°0.03
39 °
Hanna, Saturday, 31 October
Light snow. High 39°, low 24°.
Pressure29.83 inHg
Wind16.2 mph NW
Humidity74%
Visibility—
Dew point25°
Sun, 0135° / 22°0.17
35 °
Hanna, Sunday, 1 November
Snow. High 35°, low 22°.
Pressure30.00 inHg
Wind15.1 mph W
Humidity47%
Visibility—
Dew point15°
Mon, 0233° / 20°0
33 °
Hanna, Monday, 2 November
Partly cloudy. High 33°, low 20°.
Pressure30.33 inHg
Wind14.4 mph NW
Humidity58%
Visibility—
Dew point18°
Tue, 0339° / 17°0
39 °
Hanna, Tuesday, 3 November
Mostly clear. High 39°, low 17°.
Pressure30.47 inHg
Wind8.4 mph NW
Humidity48%
Visibility—
Dew point17°
Wed, 0447° / 23°0
47 °
Hanna, Wednesday, 4 November
Overcast. High 47°, low 23°.
Pressure30.27 inHg
Wind9.6 mph W
Humidity31%
Visibility—
Dew point14°
Thu, 0558° / 34°0
58 °
Hanna, Thursday, 5 November
Clear. High 58°, low 34°.
Pressure30.12 inHg
Wind9.4 mph W
Humidity44%
Visibility—
Dew point32°
Fri, 0665° / 44°0
65 °
Hanna, Friday, 6 November
Mostly clear. High 65°, low 44°.
Pressure29.91 inHg
Wind7.4 mph SW
Humidity25%
Visibility—
Dew point26°
From day 17 onward the outlook is built from 60-year climate statistics
Sat, 0748° / 30°0.04
48 °
Hanna, Saturday, 7 November
Climate normal for this date — 60-year average.
Average high48°
Average low30°
Average precipitation0.04 in
Chance of precipitation17%
Record high73° (1999)
Record low5° (1991)
Sun, 0846° / 30°0.06
46 °
Hanna, Sunday, 8 November
Climate normal for this date — 60-year average.
Average high46°
Average low30°
Average precipitation0.06 in
Chance of precipitation22%
Record high74° (1999)
Record low7° (2000)
Mon, 0943° / 28°0.07
43 °
Hanna, Monday, 9 November
Climate normal for this date — 60-year average.
Average high43°
Average low28°
Average precipitation0.07 in
Chance of precipitation28%
Record high70° (2016)
Record low0° (1966)
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)
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.