Monthly outlook for South Flat, WY: average high 60.1°, average low 38.9°. That is 3.3° above the climate normal for October. Precipitation is expected on 3 days (about 0.4 inches), against a normal of 3 days and 0.6 inches. The warmest day looks like 19 October (75.1°), the coolest 31 October (17°).
60.1°/38.9°
Average high / low
+3.3°
Above normal
3 / 3
Wet days / normal
0.4 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
18 October – 27 October
66.6°
56.6°
+5.5°
28 October – 6 November
49.2°
49.7°
-0.3°
7 November – 16 November
at normal
44.6°
—
October records over 66 years
87.1°1 October 2011All-time high
-4.4°26 October 2020All-time low
Climate normals and records are computed from the nearest reference point — Airport Road (6 mi).
Mon, 1975° / 35°0
75 °
South Flat, Monday, 19 October
Clear. High 75°, low 35°.
Pressure30.00 inHg
Wind2.2 mph S
Humidity35%
Visibility6.2 mi
Dew point34°
Tue, 2071° / 44°0
71 °
South Flat, Tuesday, 20 October
Clear. High 71°, low 44°.
Pressure30.00 inHg
Wind1.5 mph SW
Humidity38%
Visibility6.2 mi
Dew point38°
Wed, 2170° / 43°0
70 °
South Flat, Wednesday, 21 October
Clear. High 70°, low 43°.
Pressure30.12 inHg
Wind2.1 mph E
Humidity45%
Visibility6.2 mi
Dew point40°
Thu, 2274° / 48°0
74 °
South Flat, Thursday, 22 October
Overcast. High 74°, low 48°.
Pressure29.85 inHg
Wind4.7 mph SE
Humidity44%
Visibility6.2 mi
Dew point45°
Fri, 2364° / 45°0.13
64 °
South Flat, Friday, 23 October
Light rain. High 64°, low 45°.
Pressure29.53 inHg
Wind18.7 mph SW
Humidity39%
Visibility—
Dew point38°
Sat, 2453° / 43°0.05
53 °
South Flat, Saturday, 24 October
Light rain. High 53°, low 43°.
Pressure30.36 inHg
Wind12.6 mph N
Humidity55%
Visibility—
Dew point32°
Sun, 2561° / 44°0
61 °
South Flat, Sunday, 25 October
Clear. High 61°, low 44°.
Pressure30.09 inHg
Wind3.4 mph N
Humidity41%
Visibility—
Dew point31°
Mon, 2659° / 47°0
59 °
South Flat, Monday, 26 October
Clear. High 59°, low 47°.
Pressure29.91 inHg
Wind8.1 mph N
Humidity38%
Visibility—
Dew point29°
Tue, 2767° / 43°0
67 °
South Flat, Tuesday, 27 October
Clear. High 67°, low 43°.
Pressure29.59 inHg
Wind24.3 mph W
Humidity34%
Visibility—
Dew point31°
Wed, 2857° / 42°0
57 °
South Flat, Wednesday, 28 October
Partly cloudy. High 57°, low 42°.
Pressure29.71 inHg
Wind11.1 mph S
Humidity22%
Visibility—
Dew point13°
Thu, 2961° / 38°0
61 °
South Flat, Thursday, 29 October
Overcast. High 61°, low 38°.
Pressure29.59 inHg
Wind27.3 mph NW
Humidity15%
Visibility—
Dew point8°
Fri, 3033° / 26°0.18
33 °
South Flat, Friday, 30 October
Snow. High 33°, low 26°.
Pressure30.18 inHg
Wind28.4 mph NW
Humidity49%
Visibility—
Dew point13°
Sat, 3136° / 17°0
36 °
South Flat, Saturday, 31 October
Clear. High 36°, low 17°.
Pressure30.21 inHg
Wind4.7 mph E
Humidity48%
Visibility—
Dew point11°
Sun, 0146° / 25°0
46 °
South Flat, Sunday, 1 November
Overcast. High 46°, low 25°.
Pressure30.09 inHg
Wind8.3 mph S
Humidity42%
Visibility—
Dew point18°
Mon, 0261° / 43°0
61 °
South Flat, Monday, 2 November
Overcast. High 61°, low 43°.
Pressure29.85 inHg
Wind10 mph S
Humidity32%
Visibility—
Dew point24°
From day 17 onward the outlook is built from 60-year climate statistics
Tue, 0348° / 28°0.02
48 °
South Flat, Tuesday, 3 November
Climate normal for this date — 60-year average.
Average high48°
Average low28°
Average precipitation0.02 in
Chance of precipitation8%
Record high65° (2020)
Record low-11° (1991)
Wed, 0449° / 28°0.02
49 °
South Flat, Wednesday, 4 November
Climate normal for this date — 60-year average.
Average high49°
Average low28°
Average precipitation0.02 in
Chance of precipitation13%
Record high69° (1999)
Record low-2° (1973)
Thu, 0549° / 29°0.03
49 °
South Flat, Thursday, 5 November
Climate normal for this date — 60-year average.
Average high49°
Average low29°
Average precipitation0.03 in
Chance of precipitation15%
Record high68° (1977)
Record low-4° (1973)
Fri, 0649° / 28°0.05
49 °
South Flat, Friday, 6 November
Climate normal for this date — 60-year average.
Average high49°
Average low28°
Average precipitation0.05 in
Chance of precipitation17%
Record high71° (2010)
Record low2° (1971)
Sat, 0749° / 28°0.02
49 °
South Flat, Saturday, 7 November
Climate normal for this date — 60-year average.
Average high49°
Average low28°
Average precipitation0.02 in
Chance of precipitation15%
Record high68° (2012)
Record low3° (1990)
Sun, 0847° / 27°0.05
47 °
South Flat, Sunday, 8 November
Climate normal for this date — 60-year average.
Average high47°
Average low27°
Average precipitation0.05 in
Chance of precipitation23%
Record high69° (1999)
Record low4° (1986)
Mon, 0945° / 26°0.05
45 °
South Flat, Monday, 9 November
Climate normal for this date — 60-year average.
Average high45°
Average low26°
Average precipitation0.05 in
Chance of precipitation23%
Record high64° (2016)
Record low2° (1960)
Tue, 1044° / 25°0.04
44 °
South Flat, Tuesday, 10 November
Climate normal for this date — 60-year average.
Average high44°
Average low25°
Average precipitation0.04 in
Chance of precipitation22%
Record high65° (2007)
Record low-10° (1986)
Wed, 1143° / 24°0.02
43 °
South Flat, Wednesday, 11 November
Climate normal for this date — 60-year average.
Average high43°
Average low24°
Average precipitation0.02 in
Chance of precipitation20%
Record high64° (1999)
Record low-3° (1986)
Thu, 1244° / 24°0.03
44 °
South Flat, Thursday, 12 November
Climate normal for this date — 60-year average.
Average high44°
Average low24°
Average precipitation0.03 in
Chance of precipitation18%
Record high67° (1999)
Record low-10° (2014)
Fri, 1344° / 25°0.03
44 °
South Flat, Friday, 13 November
Climate normal for this date — 60-year average.
Average high44°
Average low25°
Average precipitation0.03 in
Chance of precipitation22%
Record high65° (2025)
Record low-11° (2014)
Sat, 1444° / 25°0.04
44 °
South Flat, Saturday, 14 November
Climate normal for this date — 60-year average.
Average high44°
Average low25°
Average precipitation0.04 in
Chance of precipitation12%
Record high69° (2025)
Record low-2° (1978)
Sun, 1543° / 24°0.02
43 °
South Flat, Sunday, 15 November
Climate normal for this date — 60-year average.
Average high43°
Average low24°
Average precipitation0.02 in
Chance of precipitation12%
Record high67° (2016)
Record low-10° (2014)
Mon, 1644° / 25°0.01
44 °
South Flat, Monday, 16 November
Climate normal for this date — 60-year average.
Average high44°
Average low25°
Average precipitation0.01 in
Chance of precipitation13%
Record high64° (2025)
Record low-14° (2014)
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 South Flat, WY 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 South Flat, WY 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.