Monthly outlook for Saint Stephens, WY: average high 91.1°, average low 65.1°. That is 4.3° above the climate normal for August. Precipitation is expected on 1 day (about 0.1 inches), against a normal of 2 days and 0.4 inches. The warmest day looks like 11 August (98.3°), the coolest 15 August (60.7°).
91.1°/65.1°
Average high / low
+4.3°
Above normal
1 / 2
Wet days / normal
0.1 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
9 August – 18 August
91.7°
83.7°
+4.5°
19 August – 28 August
90.1°
82.7°
+4.1°
29 August – 7 September
at normal
80.1°
—
August records over 66 years
100.4°3 August 2024All-time high
36.9°26 August 1992All-time low
Climate normals and records are computed from the nearest reference point — Arapahoe (2 mi).
Mon, 1097° / 62°0.02
97 °
Saint Stephens, Monday, 10 August
Light rain. High 97°, low 62°.
Pressure29.77 inHg
Wind5 mph NE
Humidity9%
Visibility6.2 mi
Dew point27°
Tue, 1198° / 69°0
98 °
Saint Stephens, Tuesday, 11 August
Overcast. High 98°, low 69°.
Pressure29.80 inHg
Wind16.9 mph NW
Humidity6%
Visibility6.2 mi
Dew point19°
Wed, 1290° / 67°0
90 °
Saint Stephens, Wednesday, 12 August
Overcast. High 90°, low 67°.
Pressure29.77 inHg
Wind5.5 mph NE
Humidity17%
Visibility6.2 mi
Dew point36°
Thu, 1387° / 65°0
87 °
Saint Stephens, Thursday, 13 August
Partly cloudy. High 87°, low 65°.
Pressure29.74 inHg
Wind10.8 mph SW
Humidity31%
Visibility—
Dew point47°
Fri, 1491° / 67°0.01
91 °
Saint Stephens, Friday, 14 August
Light rain. High 91°, low 67°.
Pressure29.77 inHg
Wind19.2 mph NE
Humidity27%
Visibility—
Dew point44°
Sat, 1583° / 61°0.03
83 °
Saint Stephens, Saturday, 15 August
Light rain. High 83°, low 61°.
Pressure30.09 inHg
Wind8.9 mph NE
Humidity45%
Visibility—
Dew point50°
Sun, 1691° / 67°0
91 °
Saint Stephens, Sunday, 16 August
Overcast. High 91°, low 67°.
Pressure29.97 inHg
Wind15.7 mph NW
Humidity32%
Visibility—
Dew point47°
Mon, 1789° / 65°0
89 °
Saint Stephens, Monday, 17 August
Partly cloudy. High 89°, low 65°.
Pressure29.91 inHg
Wind22.9 mph W
Humidity24%
Visibility—
Dew point41°
Tue, 1894° / 65°0
94 °
Saint Stephens, Tuesday, 18 August
Partly cloudy. High 94°, low 65°.
Pressure29.80 inHg
Wind20.5 mph SW
Humidity18%
Visibility—
Dew point38°
Wed, 1993° / 65°0.01
93 °
Saint Stephens, Wednesday, 19 August
Light rain. High 93°, low 65°.
Pressure29.83 inHg
Wind10.4 mph W
Humidity16%
Visibility—
Dew point33°
Thu, 2091° / 68°0.04
91 °
Saint Stephens, Thursday, 20 August
Light rain. High 91°, low 68°.
Pressure29.85 inHg
Wind24.4 mph S
Humidity22%
Visibility—
Dew point41°
Fri, 2189° / 67°0.02
89 °
Saint Stephens, Friday, 21 August
Light rain. High 89°, low 67°.
Pressure29.80 inHg
Wind28.2 mph W
Humidity26%
Visibility—
Dew point44°
Sat, 2288° / 65°0.01
88 °
Saint Stephens, Saturday, 22 August
Light rain. High 88°, low 65°.
Pressure29.74 inHg
Wind27.2 mph SW
Humidity19%
Visibility—
Dew point37°
Sun, 2388° / 62°0
88 °
Saint Stephens, Sunday, 23 August
Overcast. High 88°, low 62°.
Pressure29.80 inHg
Wind22.7 mph W
Humidity14%
Visibility—
Dew point29°
Mon, 2492° / 65°0
92 °
Saint Stephens, Monday, 24 August
Mostly clear. High 92°, low 65°.
Pressure29.83 inHg
Wind16.9 mph SW
Humidity18%
Visibility—
Dew point34°
From day 17 onward the outlook is built from 60-year climate statistics
Tue, 2583° / 54°0.02
83 °
Saint Stephens, Tuesday, 25 August
Climate normal for this date — 60-year average.
Average high83°
Average low54°
Average precipitation0.02 in
Chance of precipitation12%
Record high96° (2020)
Record low42° (1975)
Wed, 2682° / 54°0.02
82 °
Saint Stephens, Wednesday, 26 August
Climate normal for this date — 60-year average.
Average high82°
Average low54°
Average precipitation0.02 in
Chance of precipitation13%
Record high92° (1994)
Record low37° (1992)
Thu, 2782° / 54°0.02
82 °
Saint Stephens, Thursday, 27 August
Climate normal for this date — 60-year average.
Average high82°
Average low54°
Average precipitation0.02 in
Chance of precipitation15%
Record high95° (2020)
Record low40° (1992)
Fri, 2882° / 53°0
82 °
Saint Stephens, Friday, 28 August
Climate normal for this date — 60-year average.
Average high82°
Average low53°
Average precipitation0 in
Chance of precipitation3%
Record high92° (2012)
Record low42° (2004)
Sat, 2982° / 54°0.02
82 °
Saint Stephens, Saturday, 29 August
Climate normal for this date — 60-year average.
Average high82°
Average low54°
Average precipitation0.02 in
Chance of precipitation7%
Record high92° (2012)
Record low42° (1960)
Sun, 3082° / 53°0.02
82 °
Saint Stephens, Sunday, 30 August
Climate normal for this date — 60-year average.
Average high82°
Average low53°
Average precipitation0.02 in
Chance of precipitation13%
Record high91° (1985)
Record low40° (1964)
Mon, 3180° / 53°0.01
80 °
Saint Stephens, Monday, 31 August
Climate normal for this date — 60-year average.
Average high80°
Average low53°
Average precipitation0.01 in
Chance of precipitation8%
Record high94° (2022)
Record low38° (1962)
Tue, 0180° / 51°0.04
80 °
Saint Stephens, Tuesday, 1 September
Climate normal for this date — 60-year average.
Average high80°
Average low51°
Average precipitation0.04 in
Chance of precipitation13%
Record high96° (2022)
Record low40° (1980)
Wed, 0281° / 52°0.04
81 °
Saint Stephens, Wednesday, 2 September
Climate normal for this date — 60-year average.
Average high81°
Average low52°
Average precipitation0.04 in
Chance of precipitation15%
Record high96° (2019)
Record low38° (1973)
Thu, 0381° / 51°0.03
81 °
Saint Stephens, Thursday, 3 September
Climate normal for this date — 60-year average.
Average high81°
Average low51°
Average precipitation0.03 in
Chance of precipitation7%
Record high95° (2022)
Record low36° (1973)
Fri, 0480° / 52°0.03
80 °
Saint Stephens, Friday, 4 September
Climate normal for this date — 60-year average.
Average high80°
Average low52°
Average precipitation0.03 in
Chance of precipitation13%
Record high100° (2022)
Record low36° (1968)
Sat, 0579° / 51°0.02
79 °
Saint Stephens, Saturday, 5 September
Climate normal for this date — 60-year average.
Average high79°
Average low51°
Average precipitation0.02 in
Chance of precipitation13%
Record high98° (2022)
Record low39° (1965)
Sun, 0678° / 51°0.02
78 °
Saint Stephens, Sunday, 6 September
Climate normal for this date — 60-year average.
Average high78°
Average low51°
Average precipitation0.02 in
Chance of precipitation12%
Record high96° (2022)
Record low41° (1968)
Mon, 0778° / 51°0.02
78 °
Saint Stephens, Monday, 7 September
Climate normal for this date — 60-year average.
Average high78°
Average low51°
Average precipitation0.02 in
Chance of precipitation13%
Record high98° (2022)
Record low38° (2020)
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 Saint Stephens, 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 Saint Stephens, 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.