Monthly outlook for Durham, WY: average high 64°, average low 44.4°. That is 3.1° above the climate normal for October. Precipitation is expected on 5 days (about 1.4 inches), against a normal of 3 days and 0.8 inches. The warmest day looks like 9 October (80.7°), the coolest 16 October (30.4°).
64°/44.4°
Average high / low
+3.1°
Above normal
5 / 3
Wet days / normal
1.4 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
9 October – 18 October
64.4°
59°
+3°
19 October – 28 October
63.2°
56.4°
+3.8°
29 October – 7 November
at normal
49.9°
—
October records over 66 years
83.8°2 October 2024All-time high
-3.8°26 October 2020All-time low
Climate normals and records are computed from the nearest reference point — Cheyenne (11 mi).
Sat, 1080° / 52°0
80 °
Durham, Saturday, 10 October
Mostly clear. High 80°, low 52°.
Pressure29.65 inHg
Wind11.3 mph SW
Humidity19%
Visibility6.2 mi
Dew point30°
Sun, 1175° / 56°0.04
75 °
Durham, Sunday, 11 October
Light rain. High 75°, low 56°.
Pressure29.68 inHg
Wind7.7 mph SE
Humidity29%
Visibility6.2 mi
Dew point37°
Mon, 1274° / 49°0.01
74 °
Durham, Monday, 12 October
Light rain. High 74°, low 49°.
Pressure29.71 inHg
Wind7.9 mph W
Humidity26%
Visibility6.2 mi
Dew point35°
Tue, 1351° / 45°0.04
51 °
Durham, Tuesday, 13 October
Light rain. High 51°, low 45°.
Pressure29.97 inHg
Wind12.5 mph N
Humidity77%
Visibility—
Dew point43°
Wed, 1447° / 44°0.56
47 °
Durham, Wednesday, 14 October
Rain. High 47°, low 44°.
Pressure29.91 inHg
Wind11.7 mph SE
Humidity88%
Visibility—
Dew point43°
Thu, 1550° / 43°0.55
50 °
Durham, Thursday, 15 October
Rain. High 50°, low 43°.
Pressure30.09 inHg
Wind26.7 mph N
Humidity58%
Visibility—
Dew point33°
Fri, 1651° / 30°0
51 °
Durham, Friday, 16 October
Partly cloudy. High 51°, low 30°.
Pressure30.45 inHg
Wind20.9 mph NW
Humidity41%
Visibility—
Dew point22°
Sat, 1772° / 34°0
72 °
Durham, Saturday, 17 October
Clear. High 72°, low 34°.
Pressure30.12 inHg
Wind15.5 mph SW
Humidity10%
Visibility—
Dew point5°
Sun, 1864° / 48°0
64 °
Durham, Sunday, 18 October
Mostly clear. High 64°, low 48°.
Pressure30.06 inHg
Wind12.9 mph S
Humidity21%
Visibility—
Dew point20°
Mon, 1970° / 47°0
70 °
Durham, Monday, 19 October
Mostly clear. High 70°, low 47°.
Pressure29.88 inHg
Wind13.2 mph S
Humidity16%
Visibility—
Dew point19°
Tue, 2069° / 48°0.17
69 °
Durham, Tuesday, 20 October
Rain. High 69°, low 48°.
Pressure29.88 inHg
Wind21.1 mph NW
Humidity23%
Visibility—
Dew point28°
Wed, 2161° / 44°0
61 °
Durham, Wednesday, 21 October
Clear. High 61°, low 44°.
Pressure30.09 inHg
Wind14.8 mph S
Humidity44%
Visibility—
Dew point34°
Thu, 2252° / 42°0
52 °
Durham, Thursday, 22 October
Clear. High 52°, low 42°.
Pressure30.24 inHg
Wind20.3 mph NW
Humidity41%
Visibility—
Dew point26°
Fri, 2354° / 34°0
54 °
Durham, Friday, 23 October
Clear. High 54°, low 34°.
Pressure30.27 inHg
Wind11.9 mph S
Humidity29%
Visibility—
Dew point15°
Sat, 2473° / 45°0
73 °
Durham, Saturday, 24 October
Clear. High 73°, low 45°.
Pressure30.00 inHg
Wind17.6 mph W
Humidity14%
Visibility—
Dew point16°
From day 17 onward the outlook is built from 60-year climate statistics
Sun, 2556° / 34°0.04
56 °
Durham, Sunday, 25 October
Climate normal for this date — 60-year average.
Average high56°
Average low34°
Average precipitation0.04 in
Chance of precipitation15%
Record high74° (2017)
Record low4° (2020)
Mon, 2655° / 34°0.04
55 °
Durham, Monday, 26 October
Climate normal for this date — 60-year average.
Average high55°
Average low34°
Average precipitation0.04 in
Chance of precipitation18%
Record high74° (1977)
Record low-4° (2020)
Tue, 2753° / 33°0.02
53 °
Durham, Tuesday, 27 October
Climate normal for this date — 60-year average.
Average high53°
Average low33°
Average precipitation0.02 in
Chance of precipitation17%
Record high74° (2016)
Record low4° (2020)
Wed, 2854° / 33°0.07
54 °
Durham, Wednesday, 28 October
Climate normal for this date — 60-year average.
Average high54°
Average low33°
Average precipitation0.07 in
Chance of precipitation27%
Record high72° (2024)
Record low8° (2019)
Thu, 2953° / 32°0.06
53 °
Durham, Thursday, 29 October
Climate normal for this date — 60-year average.
Average high53°
Average low32°
Average precipitation0.06 in
Chance of precipitation25%
Record high74° (1968)
Record low-1° (2019)
Fri, 3049° / 31°0.04
49 °
Durham, Friday, 30 October
Climate normal for this date — 60-year average.
Average high49°
Average low31°
Average precipitation0.04 in
Chance of precipitation22%
Record high71° (1968)
Record low-2° (2019)
Sat, 3149° / 31°0.04
49 °
Durham, Saturday, 31 October
Climate normal for this date — 60-year average.
Average high49°
Average low31°
Average precipitation0.04 in
Chance of precipitation33%
Record high69° (2008)
Record low3° (1991)
Sun, 0149° / 31°0.05
49 °
Durham, Sunday, 1 November
Climate normal for this date — 60-year average.
Average high49°
Average low31°
Average precipitation0.05 in
Chance of precipitation28%
Record high68° (1988)
Record low6° (1991)
Mon, 0249° / 29°0.05
49 °
Durham, Monday, 2 November
Climate normal for this date — 60-year average.
Average high49°
Average low29°
Average precipitation0.05 in
Chance of precipitation22%
Record high70° (2025)
Record low-2° (1991)
Tue, 0349° / 29°0.04
49 °
Durham, Tuesday, 3 November
Climate normal for this date — 60-year average.
Average high49°
Average low29°
Average precipitation0.04 in
Chance of precipitation15%
Record high70° (2020)
Record low-2° (1967)
Wed, 0450° / 29°0.02
50 °
Durham, Wednesday, 4 November
Climate normal for this date — 60-year average.
Average high50°
Average low29°
Average precipitation0.02 in
Chance of precipitation10%
Record high67° (2020)
Record low2° (1967)
Thu, 0550° / 30°0.02
50 °
Durham, Thursday, 5 November
Climate normal for this date — 60-year average.
Average high50°
Average low30°
Average precipitation0.02 in
Chance of precipitation17%
Record high69° (1975)
Record low-3° (1967)
Fri, 0650° / 31°0.02
50 °
Durham, Friday, 6 November
Climate normal for this date — 60-year average.
Average high50°
Average low31°
Average precipitation0.02 in
Chance of precipitation13%
Record high71° (2010)
Record low11° (1979)
Sat, 0751° / 31°0.02
51 °
Durham, Saturday, 7 November
Climate normal for this date — 60-year average.
Average high51°
Average low31°
Average precipitation0.02 in
Chance of precipitation13%
Record high69° (1999)
Record low8° (1990)
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 Durham, 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 Durham, 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.