Monthly outlook for Hamill, SD: average high 67.4°, average low 49.7°. That is 2.9° above the climate normal for October. Precipitation is expected on 4 days (about 1.7 inches), against a normal of 3 days and 1.0 inches. The warmest day looks like 10 October (94.9°), the coolest 17 October (37.9°).
67.4°/49.7°
Average high / low
+2.9°
Above normal
4 / 3
Wet days / normal
1.7 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
7 October – 16 October
73.1°
63.1°
+5.6°
17 October – 26 October
57.9°
59.5°
-0.9°
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, 0880° / 50°0
80 °
Hamill, Thursday, 8 October
Partly cloudy. High 80°, low 50°.
Pressure30.03 inHg
Wind9.3 mph E
Humidity47%
Visibility6.2 mi
Dew point50°
Fri, 0993° / 57°0
93 °
Hamill, Friday, 9 October
Clear. High 93°, low 57°.
Pressure29.74 inHg
Wind9 mph SE
Humidity56%
Visibility6.2 mi
Dew point62°
Sat, 1095° / 71°0
95 °
Hamill, Saturday, 10 October
Clear. High 95°, low 71°.
Pressure29.53 inHg
Wind17 mph SW
Humidity25%
Visibility6.2 mi
Dew point46°
Sun, 1177° / 56°0
77 °
Hamill, Sunday, 11 October
Overcast. High 77°, low 56°.
Pressure29.74 inHg
Wind14.8 mph NW
Humidity62%
Visibility6.2 mi
Dew point52°
Mon, 1254° / 48°0.02
54 °
Hamill, Monday, 12 October
Light rain. High 54°, low 48°.
Pressure30.03 inHg
Wind13.2 mph N
Humidity76%
Visibility—
Dew point43°
Tue, 1369° / 44°0
69 °
Hamill, Tuesday, 13 October
Partly cloudy. High 69°, low 44°.
Pressure30.00 inHg
Wind16.2 mph SE
Humidity45%
Visibility—
Dew point38°
Wed, 1476° / 62°0.06
76 °
Hamill, Wednesday, 14 October
Light rain. High 76°, low 62°.
Pressure29.47 inHg
Wind15 mph S
Humidity51%
Visibility—
Dew point55°
Thu, 1559° / 46°0.94
59 °
Hamill, Thursday, 15 October
Rain. High 59°, low 46°.
Pressure29.97 inHg
Wind23.1 mph NW
Humidity57%
Visibility—
Dew point39°
Fri, 1650° / 40°0
50 °
Hamill, Friday, 16 October
Overcast. High 50°, low 40°.
Pressure30.62 inHg
Wind14 mph NW
Humidity50%
Visibility—
Dew point29°
Sat, 1753° / 38°0
53 °
Hamill, Saturday, 17 October
Mostly clear. High 53°, low 38°.
Pressure30.45 inHg
Wind9.9 mph SE
Humidity44%
Visibility—
Dew point29°
Sun, 1852° / 49°0.17
52 °
Hamill, Sunday, 18 October
Rain. High 52°, low 49°.
Pressure30.09 inHg
Wind18.1 mph SE
Humidity66%
Visibility—
Dew point40°
Mon, 1968° / 51°0.02
68 °
Hamill, Monday, 19 October
Light rain. High 68°, low 51°.
Pressure29.91 inHg
Wind14.6 mph S
Humidity41%
Visibility—
Dew point38°
Tue, 2063° / 47°0
63 °
Hamill, Tuesday, 20 October
Clear. High 63°, low 47°.
Pressure30.24 inHg
Wind10.6 mph NW
Humidity49%
Visibility—
Dew point39°
Wed, 2162° / 46°0
62 °
Hamill, Wednesday, 21 October
Clear. High 62°, low 46°.
Pressure30.21 inHg
Wind10.2 mph NW
Humidity55%
Visibility—
Dew point41°
Thu, 2251° / 43°0.52
51 °
Hamill, Thursday, 22 October
Rain. High 51°, low 43°.
Pressure29.91 inHg
Wind20.6 mph NW
Humidity80%
Visibility—
Dew point44°
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.