Monthly outlook for Swett, SD: average high 57.2°, average low 41.3°. That is 0.5° below the climate normal for October. Precipitation is expected on 3 days (about 0.7 inches), against a normal of 3 days and 0.7 inches. The warmest day looks like 17 October (73.1°), the coolest 16 October (31.5°).
57.2°/41.3°
Average high / low
−0.5°
Below normal
3 / 3
Wet days / normal
0.7 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
13 October – 22 October
58.6°
59.4°
-0.4°
23 October – 1 November
55°
54.6°
+0.2°
2 November – 11 November
at normal
49.1°
—
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).
Wed, 1454° / 41°0.17
54 °
Swett, Wednesday, 14 October
Rain. High 54°, low 41°.
Pressure30.21 inHg
Wind5.9 mph SE
Humidity56%
Visibility6.2 mi
Dew point37°
Thu, 1555° / 40°0.4
55 °
Swett, Thursday, 15 October
Rain. High 55°, low 40°.
Pressure30.39 inHg
Wind18.7 mph NW
Humidity53%
Visibility6.2 mi
Dew point34°
Fri, 1652° / 31°0
52 °
Swett, Friday, 16 October
Clear. High 52°, low 31°.
Pressure30.74 inHg
Wind5.8 mph W
Humidity50%
Visibility6.2 mi
Dew point22°
Sat, 1773° / 44°0
73 °
Swett, Saturday, 17 October
Clear. High 73°, low 44°.
Pressure30.03 inHg
Wind16.6 mph SW
Humidity31%
Visibility—
Dew point31°
Sun, 1863° / 47°0
63 °
Swett, Sunday, 18 October
Overcast. High 63°, low 47°.
Pressure29.97 inHg
Wind10.4 mph W
Humidity34%
Visibility—
Dew point33°
Mon, 1965° / 44°0
65 °
Swett, Monday, 19 October
Clear. High 65°, low 44°.
Pressure30.03 inHg
Wind24.4 mph S
Humidity23%
Visibility—
Dew point21°
Tue, 2069° / 50°0
69 °
Swett, Tuesday, 20 October
Clear. High 69°, low 50°.
Pressure29.77 inHg
Wind22.8 mph S
Humidity43%
Visibility—
Dew point41°
Wed, 2157° / 46°0
57 °
Swett, Wednesday, 21 October
Overcast. High 57°, low 46°.
Pressure29.85 inHg
Wind17.6 mph N
Humidity52%
Visibility—
Dew point35°
Thu, 2246° / 42°0.11
46 °
Swett, Thursday, 22 October
Light rain. High 46°, low 42°.
Pressure29.88 inHg
Wind13.4 mph N
Humidity79%
Visibility—
Dew point37°
Fri, 2348° / 39°0
48 °
Swett, Friday, 23 October
Overcast. High 48°, low 39°.
Pressure30.03 inHg
Wind19 mph NW
Humidity59%
Visibility—
Dew point32°
Sat, 2453° / 36°0
53 °
Swett, Saturday, 24 October
Overcast. High 53°, low 36°.
Pressure30.39 inHg
Wind13.2 mph NW
Humidity33%
Visibility—
Dew point20°
Sun, 2557° / 41°0
57 °
Swett, Sunday, 25 October
Clear. High 57°, low 41°.
Pressure30.33 inHg
Wind19.9 mph NW
Humidity30%
Visibility—
Dew point23°
Mon, 2655° / 35°0
55 °
Swett, Monday, 26 October
Clear. High 55°, low 35°.
Pressure30.30 inHg
Wind16.4 mph SE
Humidity33%
Visibility—
Dew point19°
Tue, 2766° / 45°0
66 °
Swett, Tuesday, 27 October
Mostly clear. High 66°, low 45°.
Pressure29.68 inHg
Wind22.4 mph S
Humidity37%
Visibility—
Dew point32°
Wed, 2851° / 38°0
51 °
Swett, Wednesday, 28 October
Overcast. High 51°, low 38°.
Pressure30.09 inHg
Wind25.1 mph N
Humidity67%
Visibility—
Dew point32°
From day 17 onward the outlook is built from 60-year climate statistics
Thu, 2954° / 36°0.09
54 °
Swett, Thursday, 29 October
Climate normal for this date — 60-year average.
Average high54°
Average low36°
Average precipitation0.09 in
Chance of precipitation32%
Record high76° (1968)
Record low3° (1991)
Fri, 3052° / 35°0.05
52 °
Swett, Friday, 30 October
Climate normal for this date — 60-year average.
Average high52°
Average low35°
Average precipitation0.05 in
Chance of precipitation25%
Record high77° (1968)
Record low-1° (1991)
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)
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.