Monthly outlook for Hanna, SD: average high 51.8°, average low 34.5°. That is 2.3° above the climate normal for October. Precipitation is expected on 3 days (about 0.4 inches), against a normal of 4 days and 0.8 inches. The warmest day looks like 7 November (64.7°), the coolest 3 November (26°).
51.8°/34.5°
Average high / low
+2.3°
Above normal
3 / 4
Wet days / normal
0.4 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
27 October – 5 November
50.4°
49.1°
+0.7°
6 November – 15 November
54.3°
45.1°
+5.1°
16 November – 25 November
at normal
41.5°
—
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).
Wed, 2847° / 32°0.13
47 °
Hanna, Wednesday, 28 October
Light rain. High 47°, low 32°.
Pressure29.97 inHg
Wind6.2 mph NW
Humidity54%
Visibility6.2 mi
Dew point25°
Thu, 2955° / 33°0
55 °
Hanna, Thursday, 29 October
Clear. High 55°, low 33°.
Pressure30.03 inHg
Wind4.9 mph W
Humidity39%
Visibility6.2 mi
Dew point20°
Fri, 3058° / 39°0
58 °
Hanna, Friday, 30 October
Overcast. High 58°, low 39°.
Pressure30.03 inHg
Wind11.1 mph SE
Humidity59%
Visibility6.2 mi
Dew point40°
Sat, 3160° / 45°0
60 °
Hanna, Saturday, 31 October
Overcast. High 60°, low 45°.
Pressure29.85 inHg
Wind15.3 mph S
Humidity44%
Visibility—
Dew point37°
Sun, 0162° / 44°0
62 °
Hanna, Sunday, 1 November
Light rain. High 62°, low 44°.
Pressure29.83 inHg
Wind9.4 mph SW
Humidity35%
Visibility—
Dew point31°
Mon, 0243° / 27°0.17
43 °
Hanna, Monday, 2 November
Snow. High 43°, low 27°.
Pressure29.97 inHg
Wind17.7 mph NW
Humidity95%
Visibility—
Dew point31°
Tue, 0336° / 26°0.04
36 °
Hanna, Tuesday, 3 November
Light snow. High 36°, low 26°.
Pressure30.30 inHg
Wind11.1 mph NW
Humidity92%
Visibility—
Dew point29°
Wed, 0445° / 33°0.02
45 °
Hanna, Wednesday, 4 November
Light rain. High 45°, low 33°.
Pressure30.09 inHg
Wind6.1 mph S
Humidity73%
Visibility—
Dew point35°
Thu, 0550° / 32°0
50 °
Hanna, Thursday, 5 November
Clear. High 50°, low 32°.
Pressure29.94 inHg
Wind6.7 mph S
Humidity46%
Visibility—
Dew point27°
Fri, 0656° / 32°0
56 °
Hanna, Friday, 6 November
Partly cloudy. High 56°, low 32°.
Pressure29.88 inHg
Wind7.5 mph W
Humidity29%
Visibility—
Dew point19°
Sat, 0765° / 44°0
65 °
Hanna, Saturday, 7 November
Partly cloudy. High 65°, low 44°.
Pressure29.71 inHg
Wind11.2 mph SW
Humidity26%
Visibility—
Dew point26°
Sun, 0850° / 35°0.01
50 °
Hanna, Sunday, 8 November
Light rain. High 50°, low 35°.
Pressure29.77 inHg
Wind17.7 mph NW
Humidity69%
Visibility—
Dew point36°
Mon, 0945° / 33°0
45 °
Hanna, Monday, 9 November
Clear. High 45°, low 33°.
Pressure30.15 inHg
Wind18 mph NW
Humidity42%
Visibility—
Dew point20°
Tue, 1053° / 33°0
53 °
Hanna, Tuesday, 10 November
Overcast. High 53°, low 33°.
Pressure30.03 inHg
Wind7.9 mph SW
Humidity23%
Visibility—
Dew point14°
Wed, 1157° / 37°0
57 °
Hanna, Wednesday, 11 November
Overcast. High 57°, low 37°.
Pressure29.83 inHg
Wind4.1 mph NE
Humidity17%
Visibility—
Dew point10°
From day 17 onward the outlook is built from 60-year climate statistics
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)
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)
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.