Monthly outlook for South Flat, WY: average high 60.2°, average low 40.9°. That is 3° above the climate normal for October. Precipitation is expected on 2 days (about 0.1 inches), against a normal of 3 days and 0.6 inches. The warmest day looks like 17 October (72.6°), the coolest 31 October (26.9°).
60.2°/40.9°
Average high / low
+3°
Above normal
2 / 3
Wet days / normal
0.1 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
17 October – 26 October
65.8°
57.1°
+4.8°
27 October – 5 November
50.9°
50.1°
+0.4°
6 November – 15 November
at normal
45.2°
—
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).
Sun, 1868° / 37°0
68 °
South Flat, Sunday, 18 October
Clear. High 68°, low 37°.
Pressure30.09 inHg
Wind3.6 mph N
Humidity38%
Visibility6.2 mi
Dew point34°
Mon, 1968° / 41°0
68 °
South Flat, Monday, 19 October
Clear. High 68°, low 41°.
Pressure30.00 inHg
Wind2 mph S
Humidity44%
Visibility6.2 mi
Dew point39°
Tue, 2069° / 43°0
69 °
South Flat, Tuesday, 20 October
Clear. High 69°, low 43°.
Pressure30.00 inHg
Wind3.1 mph SW
Humidity43%
Visibility6.2 mi
Dew point40°
Wed, 2168° / 43°0
68 °
South Flat, Wednesday, 21 October
Clear. High 68°, low 43°.
Pressure30.09 inHg
Wind4.7 mph NW
Humidity49%
Visibility—
Dew point40°
Thu, 2272° / 45°0
72 °
South Flat, Thursday, 22 October
Clear. High 72°, low 45°.
Pressure29.91 inHg
Wind5.6 mph SE
Humidity48%
Visibility—
Dew point43°
Fri, 2369° / 52°0.05
69 °
South Flat, Friday, 23 October
Light rain. High 69°, low 52°.
Pressure29.50 inHg
Wind27.8 mph NW
Humidity26%
Visibility—
Dew point30°
Sat, 2452° / 41°0.02
52 °
South Flat, Saturday, 24 October
Light rain. High 52°, low 41°.
Pressure30.09 inHg
Wind27.1 mph NW
Humidity59%
Visibility—
Dew point34°
Sun, 2564° / 47°0
64 °
South Flat, Sunday, 25 October
Overcast. High 64°, low 47°.
Pressure29.80 inHg
Wind9.5 mph S
Humidity34%
Visibility—
Dew point29°
Mon, 2655° / 47°0
55 °
South Flat, Monday, 26 October
Overcast. High 55°, low 47°.
Pressure29.71 inHg
Wind10.1 mph S
Humidity23%
Visibility—
Dew point15°
Tue, 2764° / 44°0
64 °
South Flat, Tuesday, 27 October
Partly cloudy. High 64°, low 44°.
Pressure29.59 inHg
Wind28.6 mph W
Humidity27%
Visibility—
Dew point23°
Wed, 2851° / 42°0
51 °
South Flat, Wednesday, 28 October
Clear. High 51°, low 42°.
Pressure30.00 inHg
Wind31.4 mph W
Humidity17%
Visibility—
Dew point5°
Thu, 2959° / 42°0
59 °
South Flat, Thursday, 29 October
Overcast. High 59°, low 42°.
Pressure29.62 inHg
Wind19.5 mph SW
Humidity23%
Visibility—
Dew point17°
Fri, 3046° / 34°0.08
46 °
South Flat, Friday, 30 October
Snow. High 46°, low 34°.
Pressure29.65 inHg
Wind27.4 mph NW
Humidity69%
Visibility—
Dew point26°
Sat, 3141° / 27°0
41 °
South Flat, Saturday, 31 October
Partly cloudy. High 41°, low 27°.
Pressure29.85 inHg
Wind7.1 mph W
Humidity46%
Visibility—
Dew point17°
Sun, 0144° / 30°0
44 °
South Flat, Sunday, 1 November
Overcast. High 44°, low 30°.
Pressure29.91 inHg
Wind5.7 mph SE
Humidity47%
Visibility—
Dew point19°
From day 17 onward the outlook is built from 60-year climate statistics
Mon, 0248° / 29°0.04
48 °
South Flat, Monday, 2 November
Climate normal for this date — 60-year average.
Average high48°
Average low29°
Average precipitation0.04 in
Chance of precipitation20%
Record high67° (2008)
Record low-10° (1991)
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)
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.