Monthly outlook for Swett, SD: average high 61.1°, average low 44.4°. That is 2° above the climate normal for October. Precipitation is expected on 4 days (about 1.2 inches), against a normal of 3 days and 0.7 inches. The warmest day looks like 22 October (75.3°), the coolest 16 October (34.1°).
61.1°/44.4°
Average high / low
+2°
Above normal
4 / 3
Wet days / normal
1.2 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
15 October – 24 October
63.6°
58.8°
+2.7°
25 October – 3 November
56.8°
53.3°
+1.9°
4 November – 13 November
at normal
48.5°
—
October records over 66 years
91.4°5 October 1963All-time high
-1.8°26 October 1997All-time low
Climate normals and records are computed from the nearest reference point — Allen (8 mi).
Fri, 1651° / 34°0
51 °
Swett, Friday, 16 October
Clear. High 51°, low 34°.
Pressure30.74 inHg
Wind4.9 mph W
Humidity57%
Visibility6.2 mi
Dew point28°
Sat, 1771° / 41°0
71 °
Swett, Saturday, 17 October
Clear. High 71°, low 41°.
Pressure30.12 inHg
Wind11.5 mph SW
Humidity31%
Visibility6.2 mi
Dew point33°
Sun, 1863° / 46°0
63 °
Swett, Sunday, 18 October
Clear. High 63°, low 46°.
Pressure30.00 inHg
Wind11.3 mph N
Humidity41%
Visibility6.2 mi
Dew point37°
Mon, 1962° / 41°0
62 °
Swett, Monday, 19 October
Clear. High 62°, low 41°.
Pressure30.06 inHg
Wind7.6 mph SE
Humidity57%
Visibility—
Dew point40°
Tue, 2070° / 46°0
70 °
Swett, Tuesday, 20 October
Clear. High 70°, low 46°.
Pressure30.03 inHg
Wind10.3 mph S
Humidity50%
Visibility—
Dew point44°
Wed, 2174° / 53°0
74 °
Swett, Wednesday, 21 October
Mostly clear. High 74°, low 53°.
Pressure29.85 inHg
Wind17 mph S
Humidity62%
Visibility—
Dew point53°
Thu, 2275° / 57°0
75 °
Swett, Thursday, 22 October
Overcast. High 75°, low 57°.
Pressure29.71 inHg
Wind13 mph S
Humidity56%
Visibility—
Dew point53°
Fri, 2362° / 46°0.46
62 °
Swett, Friday, 23 October
Rain. High 62°, low 46°.
Pressure29.77 inHg
Wind23 mph N
Humidity78%
Visibility—
Dew point45°
Sat, 2455° / 43°0.01
55 °
Swett, Saturday, 24 October
Light rain. High 55°, low 43°.
Pressure30.24 inHg
Wind15.5 mph NW
Humidity51%
Visibility—
Dew point34°
Sun, 2563° / 45°0
63 °
Swett, Sunday, 25 October
Overcast. High 63°, low 45°.
Pressure30.15 inHg
Wind29.2 mph S
Humidity48%
Visibility—
Dew point38°
Mon, 2658° / 51°0
58 °
Swett, Monday, 26 October
Overcast. High 58°, low 51°.
Pressure29.91 inHg
Wind25.1 mph S
Humidity79%
Visibility—
Dew point50°
Tue, 2761° / 46°0.03
61 °
Swett, Tuesday, 27 October
Light rain. High 61°, low 46°.
Pressure29.71 inHg
Wind21.9 mph NW
Humidity68%
Visibility—
Dew point50°
Wed, 2856° / 43°0.13
56 °
Swett, Wednesday, 28 October
Rain. High 56°, low 43°.
Pressure29.68 inHg
Wind25.1 mph W
Humidity30%
Visibility—
Dew point22°
Thu, 2957° / 41°0
57 °
Swett, Thursday, 29 October
Clear. High 57°, low 41°.
Pressure29.80 inHg
Wind15.7 mph SW
Humidity36%
Visibility—
Dew point26°
Fri, 3045° / 37°0.05
45 °
Swett, Friday, 30 October
Snow. High 45°, low 37°.
Pressure30.09 inHg
Wind20.5 mph NW
Humidity63%
Visibility—
Dew point29°
From day 17 onward the outlook is built from 60-year climate statistics
Sat, 3151° / 35°0.04
51 °
Swett, Saturday, 31 October
Climate normal for this date — 60-year average.
Average high51°
Average low35°
Average precipitation0.04 in
Chance of precipitation15%
Record high77° (1990)
Record low3° (1991)
Sun, 0151° / 34°0.05
51 °
Swett, Sunday, 1 November
Climate normal for this date — 60-year average.
Average high51°
Average low34°
Average precipitation0.05 in
Chance of precipitation22%
Record high71° (2008)
Record low-1° (2002)
Mon, 0251° / 33°0.04
51 °
Swett, Monday, 2 November
Climate normal for this date — 60-year average.
Average high51°
Average low33°
Average precipitation0.04 in
Chance of precipitation22%
Record high79° (2008)
Record low-2° (1991)
Tue, 0350° / 33°0.04
50 °
Swett, Tuesday, 3 November
Climate normal for this date — 60-year average.
Average high50°
Average low33°
Average precipitation0.04 in
Chance of precipitation17%
Record high70° (2020)
Record low-6° (1991)
Wed, 0451° / 33°0.02
51 °
Swett, Wednesday, 4 November
Climate normal for this date — 60-year average.
Average high51°
Average low33°
Average precipitation0.02 in
Chance of precipitation13%
Record high75° (1978)
Record low1° (1991)
Thu, 0552° / 33°0.04
52 °
Swett, Thursday, 5 November
Climate normal for this date — 60-year average.
Average high52°
Average low33°
Average precipitation0.04 in
Chance of precipitation12%
Record high76° (2001)
Record low11° (1967)
Fri, 0651° / 32°0.04
51 °
Swett, Friday, 6 November
Climate normal for this date — 60-year average.
Average high51°
Average low32°
Average precipitation0.04 in
Chance of precipitation13%
Record high77° (2020)
Record low3° (1991)
Sat, 0751° / 33°0.04
51 °
Swett, Saturday, 7 November
Climate normal for this date — 60-year average.
Average high51°
Average low33°
Average precipitation0.04 in
Chance of precipitation17%
Record high77° (1999)
Record low3° (1991)
Sun, 0850° / 32°0.06
50 °
Swett, Sunday, 8 November
Climate normal for this date — 60-year average.
Average high50°
Average low32°
Average precipitation0.06 in
Chance of precipitation18%
Record high78° (1999)
Record low13° (2000)
Mon, 0946° / 30°0.06
46 °
Swett, Monday, 9 November
Climate normal for this date — 60-year average.
Average high46°
Average low30°
Average precipitation0.06 in
Chance of precipitation23%
Record high71° (2016)
Record low7° (2000)
Tue, 1046° / 28°0.04
46 °
Swett, Tuesday, 10 November
Climate normal for this date — 60-year average.
Average high46°
Average low28°
Average precipitation0.04 in
Chance of precipitation20%
Record high68° (2005)
Record low-1° (1986)
Wed, 1144° / 29°0.03
44 °
Swett, Wednesday, 11 November
Climate normal for this date — 60-year average.
Average high44°
Average low29°
Average precipitation0.03 in
Chance of precipitation20%
Record high73° (2005)
Record low0° (1986)
Thu, 1247° / 29°0.04
47 °
Swett, Thursday, 12 November
Climate normal for this date — 60-year average.
Average high47°
Average low29°
Average precipitation0.04 in
Chance of precipitation15%
Record high71° (1999)
Record low-15° (1986)
Fri, 1347° / 30°0.04
47 °
Swett, Friday, 13 November
Climate normal for this date — 60-year average.
Average high47°
Average low30°
Average precipitation0.04 in
Chance of precipitation23%
Record high70° (1999)
Record low-15° (1986)
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 Swett, 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 Swett, 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.