Monthly outlook for Hamill, SD: average high 66.2°, average low 47°. That is 2.2° above the climate normal for October. Precipitation is expected on 3 days (about 1.3 inches), against a normal of 3 days and 1.0 inches. The warmest day looks like 10 October (95.2°), the coolest 17 October (35°).
66.2°/47°
Average high / low
+2.2°
Above normal
3 / 3
Wet days / normal
1.3 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
7 October – 16 October
69.8°
63.1°
+3.7°
17 October – 26 October
60.1°
59.5°
+0.4°
27 October – 5 November
at normal
53.1°
—
October records over 66 years
92.5°4 October 1975All-time high
8.8°27 October 2020All-time low
Thu, 0881° / 50°0
81 °
Hamill, Thursday, 8 October
Light rain. High 81°, low 50°.
Pressure30.00 inHg
Wind6.9 mph E
Humidity47%
Visibility6.2 mi
Dew point50°
Fri, 0990° / 53°0
90 °
Hamill, Friday, 9 October
Clear. High 90°, low 53°.
Pressure29.80 inHg
Wind7.8 mph SE
Humidity57%
Visibility6.2 mi
Dew point61°
Sat, 1095° / 71°0
95 °
Hamill, Saturday, 10 October
Clear. High 95°, low 71°.
Pressure29.53 inHg
Wind17 mph SW
Humidity24%
Visibility6.2 mi
Dew point45°
Sun, 1177° / 52°0
77 °
Hamill, Sunday, 11 October
Overcast. High 77°, low 52°.
Pressure29.77 inHg
Wind15.4 mph NW
Humidity60%
Visibility6.2 mi
Dew point47°
Mon, 1256° / 49°0.01
56 °
Hamill, Monday, 12 October
Light rain. High 56°, low 49°.
Pressure30.00 inHg
Wind12.5 mph NW
Humidity72%
Visibility—
Dew point43°
Tue, 1362° / 42°0
62 °
Hamill, Tuesday, 13 October
Mostly clear. High 62°, low 42°.
Pressure30.24 inHg
Wind16 mph S
Humidity47%
Visibility—
Dew point33°
Wed, 1462° / 57°0.33
62 °
Hamill, Wednesday, 14 October
Rain. High 62°, low 57°.
Pressure29.56 inHg
Wind18 mph S
Humidity91%
Visibility—
Dew point57°
Thu, 1557° / 42°0.39
57 °
Hamill, Thursday, 15 October
Rain. High 57°, low 42°.
Pressure29.74 inHg
Wind20.2 mph N
Humidity92%
Visibility—
Dew point49°
Fri, 1640° / 36°0.58
40 °
Hamill, Friday, 16 October
Snow. High 40°, low 36°.
Pressure30.30 inHg
Wind19 mph NW
Humidity96%
Visibility—
Dew point36°
Sat, 1747° / 35°0
47 °
Hamill, Saturday, 17 October
Overcast. High 47°, low 35°.
Pressure30.27 inHg
Wind11.2 mph NW
Humidity61%
Visibility—
Dew point30°
Sun, 1861° / 36°0
61 °
Hamill, Sunday, 18 October
Overcast. High 61°, low 36°.
Pressure30.12 inHg
Wind6.7 mph SW
Humidity41%
Visibility—
Dew point29°
Mon, 1964° / 47°0
64 °
Hamill, Monday, 19 October
Clear. High 64°, low 47°.
Pressure30.09 inHg
Wind15.9 mph NW
Humidity37%
Visibility—
Dew point35°
Tue, 2055° / 42°0
55 °
Hamill, Tuesday, 20 October
Overcast. High 55°, low 42°.
Pressure30.36 inHg
Wind7.9 mph SE
Humidity49%
Visibility—
Dew point31°
Wed, 2170° / 44°0
70 °
Hamill, Wednesday, 21 October
Clear. High 70°, low 44°.
Pressure29.80 inHg
Wind22.4 mph S
Humidity42%
Visibility—
Dew point39°
Thu, 2263° / 47°0
63 °
Hamill, Thursday, 22 October
Light rain. High 63°, low 47°.
Pressure29.53 inHg
Wind20.5 mph NW
Humidity34%
Visibility—
Dew point29°
From day 17 onward the outlook is built from 60-year climate statistics
Fri, 2358° / 40°0.05
58 °
Hamill, Friday, 23 October
Climate normal for this date — 60-year average.
Average high58°
Average low40°
Average precipitation0.05 in
Chance of precipitation17%
Record high80° (2022)
Record low22° (1981)
Sat, 2457° / 40°0.03
57 °
Hamill, Saturday, 24 October
Climate normal for this date — 60-year average.
Average high57°
Average low40°
Average precipitation0.03 in
Chance of precipitation15%
Record high83° (1989)
Record low23° (2020)
Sun, 2558° / 39°0.02
58 °
Hamill, Sunday, 25 October
Climate normal for this date — 60-year average.
Average high58°
Average low39°
Average precipitation0.02 in
Chance of precipitation10%
Record high79° (1989)
Record low15° (2020)
Mon, 2658° / 39°0.02
58 °
Hamill, Monday, 26 October
Climate normal for this date — 60-year average.
Average high58°
Average low39°
Average precipitation0.02 in
Chance of precipitation15%
Record high78° (2014)
Record low9° (2020)
Tue, 2757° / 39°0.04
57 °
Hamill, Tuesday, 27 October
Climate normal for this date — 60-year average.
Average high57°
Average low39°
Average precipitation0.04 in
Chance of precipitation18%
Record high76° (2016)
Record low9° (2020)
Wed, 2856° / 38°0.06
56 °
Hamill, Wednesday, 28 October
Climate normal for this date — 60-year average.
Average high56°
Average low38°
Average precipitation0.06 in
Chance of precipitation15%
Record high78° (2016)
Record low21° (2019)
Thu, 2954° / 37°0.07
54 °
Hamill, Thursday, 29 October
Climate normal for this date — 60-year average.
Average high54°
Average low37°
Average precipitation0.07 in
Chance of precipitation28%
Record high76° (1978)
Record low16° (1991)
Fri, 3053° / 37°0.07
53 °
Hamill, Friday, 30 October
Climate normal for this date — 60-year average.
Average high53°
Average low37°
Average precipitation0.07 in
Chance of precipitation28%
Record high77° (1968)
Record low12° (1991)
Sat, 3153° / 36°0.05
53 °
Hamill, Saturday, 31 October
Climate normal for this date — 60-year average.
Average high53°
Average low36°
Average precipitation0.05 in
Chance of precipitation13%
Record high83° (2016)
Record low15° (2002)
Sun, 0152° / 36°0.04
52 °
Hamill, Sunday, 1 November
Climate normal for this date — 60-year average.
Average high52°
Average low36°
Average precipitation0.04 in
Chance of precipitation20%
Record high78° (1990)
Record low11° (2002)
Mon, 0252° / 35°0.04
52 °
Hamill, Monday, 2 November
Climate normal for this date — 60-year average.
Average high52°
Average low35°
Average precipitation0.04 in
Chance of precipitation17%
Record high75° (1964)
Record low8° (1991)
Tue, 0351° / 35°0.04
51 °
Hamill, Tuesday, 3 November
Climate normal for this date — 60-year average.
Average high51°
Average low35°
Average precipitation0.04 in
Chance of precipitation15%
Record high72° (1978)
Record low7° (1991)
Wed, 0452° / 33°0.01
52 °
Hamill, Wednesday, 4 November
Climate normal for this date — 60-year average.
Average high52°
Average low33°
Average precipitation0.01 in
Chance of precipitation10%
Record high75° (1978)
Record low2° (1995)
Thu, 0552° / 35°0.03
52 °
Hamill, Thursday, 5 November
Climate normal for this date — 60-year average.
Average high52°
Average low35°
Average precipitation0.03 in
Chance of precipitation13%
Record high76° (2001)
Record low15° (2003)
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 Hamill, 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 Hamill, 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.