Monthly outlook for Guymon, OK: average high 77.8°, average low 57.5°. That is 2.9° above the climate normal for October. Precipitation is expected on 2 days (about 0.2 inches), against a normal of 2 days and 0.7 inches. The warmest day looks like 11 October (90.6°), the coolest 16 October (48.3°).
77.8°/57.5°
Average high / low
+2.9°
Above normal
2 / 2
Wet days / normal
0.2 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
7 October – 16 October
81.1°
73.5°
+4.2°
17 October – 26 October
72.3°
70.2°
+1.2°
27 October – 5 November
at normal
63.8°
—
October records over 66 years
96.4°1 October 2000All-time high
9.9°27 October 1997All-time low
Thu, 0884° / 56°0
84 °
Guymon, Thursday, 8 October
Clear. High 84°, low 56°.
Pressure30.03 inHg
Wind4.6 mph S
Humidity42%
Visibility6.2 mi
Dew point54°
Fri, 0984° / 59°0
84 °
Guymon, Friday, 9 October
Clear. High 84°, low 59°.
Pressure29.97 inHg
Wind12 mph SW
Humidity37%
Visibility6.2 mi
Dew point51°
Sat, 1085° / 62°0
85 °
Guymon, Saturday, 10 October
Clear. High 85°, low 62°.
Pressure29.83 inHg
Wind17.2 mph SW
Humidity36%
Visibility6.2 mi
Dew point48°
Sun, 1191° / 67°0
91 °
Guymon, Sunday, 11 October
Mostly clear. High 91°, low 67°.
Pressure29.68 inHg
Wind17.6 mph SW
Humidity27%
Visibility—
Dew point46°
Mon, 1287° / 70°0
87 °
Guymon, Monday, 12 October
Clear. High 87°, low 70°.
Pressure29.80 inHg
Wind16.8 mph S
Humidity34%
Visibility—
Dew point53°
Tue, 1380° / 69°0.15
80 °
Guymon, Tuesday, 13 October
Rain. High 80°, low 69°.
Pressure29.83 inHg
Wind20.9 mph S
Humidity56%
Visibility—
Dew point62°
Wed, 1480° / 63°0.08
80 °
Guymon, Wednesday, 14 October
Light rain. High 80°, low 63°.
Pressure29.68 inHg
Wind23.4 mph SW
Humidity55%
Visibility—
Dew point59°
Thu, 1566° / 55°0
66 °
Guymon, Thursday, 15 October
Clear. High 66°, low 55°.
Pressure30.15 inHg
Wind35.2 mph W
Humidity36%
Visibility—
Dew point36°
Fri, 1667° / 48°0
67 °
Guymon, Friday, 16 October
Clear. High 67°, low 48°.
Pressure30.30 inHg
Wind12.9 mph S
Humidity35%
Visibility—
Dew point33°
Sat, 1762° / 52°0
62 °
Guymon, Saturday, 17 October
Overcast. High 62°, low 52°.
Pressure30.42 inHg
Wind18.5 mph NE
Humidity20%
Visibility—
Dew point18°
Sun, 1877° / 51°0
77 °
Guymon, Sunday, 18 October
Clear. High 77°, low 51°.
Pressure30.00 inHg
Wind19.9 mph SW
Humidity28%
Visibility—
Dew point35°
Mon, 1978° / 53°0
78 °
Guymon, Monday, 19 October
Clear. High 78°, low 53°.
Pressure29.94 inHg
Wind14.1 mph S
Humidity30%
Visibility—
Dew point38°
Tue, 2074° / 55°0
74 °
Guymon, Tuesday, 20 October
Partly cloudy. High 74°, low 55°.
Pressure30.03 inHg
Wind19 mph N
Humidity24%
Visibility—
Dew point31°
Wed, 2177° / 54°0
77 °
Guymon, Wednesday, 21 October
Clear. High 77°, low 54°.
Pressure30.15 inHg
Wind6.7 mph SE
Humidity23%
Visibility—
Dew point31°
Thu, 2266° / 54°0
66 °
Guymon, Thursday, 22 October
Clear. High 66°, low 54°.
Pressure30.39 inHg
Wind13.9 mph NE
Humidity24%
Visibility—
Dew point27°
From day 17 onward the outlook is built from 60-year climate statistics
Fri, 2369° / 48°0.02
69 °
Guymon, Friday, 23 October
Climate normal for this date — 60-year average.
Average high69°
Average low48°
Average precipitation0.02 in
Chance of precipitation7%
Record high89° (2003)
Record low34° (2020)
Sat, 2469° / 47°0.03
69 °
Guymon, Saturday, 24 October
Climate normal for this date — 60-year average.
Average high69°
Average low47°
Average precipitation0.03 in
Chance of precipitation13%
Record high88° (2024)
Record low32° (2002)
Sun, 2569° / 45°0.06
69 °
Guymon, Sunday, 25 October
Climate normal for this date — 60-year average.
Average high69°
Average low45°
Average precipitation0.06 in
Chance of precipitation15%
Record high89° (2014)
Record low24° (1997)
Mon, 2668° / 46°0.02
68 °
Guymon, Monday, 26 October
Climate normal for this date — 60-year average.
Average high68°
Average low46°
Average precipitation0.02 in
Chance of precipitation13%
Record high90° (2014)
Record low17° (1997)
Tue, 2766° / 44°0.03
66 °
Guymon, Tuesday, 27 October
Climate normal for this date — 60-year average.
Average high66°
Average low44°
Average precipitation0.03 in
Chance of precipitation17%
Record high86° (1975)
Record low10° (1997)
Wed, 2865° / 45°0.06
65 °
Guymon, Wednesday, 28 October
Climate normal for this date — 60-year average.
Average high65°
Average low45°
Average precipitation0.06 in
Chance of precipitation18%
Record high87° (2016)
Record low24° (1997)
Thu, 2967° / 44°0.04
67 °
Guymon, Thursday, 29 October
Climate normal for this date — 60-year average.
Average high67°
Average low44°
Average precipitation0.04 in
Chance of precipitation17%
Record high91° (2016)
Record low22° (2019)
Fri, 3064° / 44°0.07
64 °
Guymon, Friday, 30 October
Climate normal for this date — 60-year average.
Average high64°
Average low44°
Average precipitation0.07 in
Chance of precipitation18%
Record high85° (1968)
Record low20° (1993)
Sat, 3164° / 42°0.08
64 °
Guymon, Saturday, 31 October
Climate normal for this date — 60-year average.
Average high64°
Average low42°
Average precipitation0.08 in
Chance of precipitation23%
Record high87° (2016)
Record low19° (1991)
Sun, 0162° / 42°0.04
62 °
Guymon, Sunday, 1 November
Climate normal for this date — 60-year average.
Average high62°
Average low42°
Average precipitation0.04 in
Chance of precipitation23%
Record high84° (1973)
Record low15° (1991)
Mon, 0262° / 41°0.04
62 °
Guymon, Monday, 2 November
Climate normal for this date — 60-year average.
Average high62°
Average low41°
Average precipitation0.04 in
Chance of precipitation20%
Record high81° (2005)
Record low6° (1991)
Tue, 0363° / 41°0.03
63 °
Guymon, Tuesday, 3 November
Climate normal for this date — 60-year average.
Average high63°
Average low41°
Average precipitation0.03 in
Chance of precipitation10%
Record high82° (1988)
Record low-1° (1991)
Wed, 0462° / 40°0.03
62 °
Guymon, Wednesday, 4 November
Climate normal for this date — 60-year average.
Average high62°
Average low40°
Average precipitation0.03 in
Chance of precipitation8%
Record high82° (2017)
Record low11° (1991)
Thu, 0563° / 41°0.01
63 °
Guymon, Thursday, 5 November
Climate normal for this date — 60-year average.
Average high63°
Average low41°
Average precipitation0.01 in
Chance of precipitation3%
Record high79° (2023)
Record low25° (1991)
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 Guymon, OK 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 Guymon, OK 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.