Monthly outlook for May Valley, CO: average high 66.9°, average low 44.8°. That is 0.5° above the climate normal for October. Precipitation is expected on 3 days (about 0.2 inches), against a normal of 2 days and 0.6 inches. The warmest day looks like 21 October (77.9°), the coolest 26 October (34.5°).
66.9°/44.8°
Average high / low
+0.5°
Above normal
3 / 2
Wet days / normal
0.2 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
16 October – 25 October
68.8°
67.9°
+0.5°
26 October – 4 November
63.7°
61.2°
+1.4°
5 November – 14 November
at normal
58.8°
—
October records over 66 years
94.8°5 October 2024All-time high
9.5°27 October 2020All-time low
Sat, 1770° / 36°0
70 °
May Valley, Saturday, 17 October
Clear. High 70°, low 36°.
Pressure30.36 inHg
Wind5.5 mph S
Humidity36%
Visibility6.2 mi
Dew point29°
Sun, 1871° / 39°0
71 °
May Valley, Sunday, 18 October
Partly cloudy. High 71°, low 39°.
Pressure30.06 inHg
Wind4.7 mph S
Humidity37%
Visibility6.2 mi
Dew point36°
Mon, 1970° / 43°0
70 °
May Valley, Monday, 19 October
Clear. High 70°, low 43°.
Pressure30.00 inHg
Wind1.5 mph N
Humidity35%
Visibility6.2 mi
Dew point38°
Tue, 2077° / 49°0
77 °
May Valley, Tuesday, 20 October
Clear. High 77°, low 49°.
Pressure29.94 inHg
Wind10.9 mph SE
Humidity51%
Visibility—
Dew point47°
Wed, 2178° / 55°0
78 °
May Valley, Wednesday, 21 October
Clear. High 78°, low 55°.
Pressure30.03 inHg
Wind8.9 mph E
Humidity46%
Visibility—
Dew point49°
Thu, 2278° / 58°0
78 °
May Valley, Thursday, 22 October
Clear. High 78°, low 58°.
Pressure30.06 inHg
Wind11.5 mph SE
Humidity43%
Visibility—
Dew point48°
Fri, 2371° / 61°0.11
71 °
May Valley, Friday, 23 October
Light rain. High 71°, low 61°.
Pressure29.80 inHg
Wind29.7 mph S
Humidity59%
Visibility—
Dew point55°
Sat, 2470° / 52°0.01
70 °
May Valley, Saturday, 24 October
Light rain. High 70°, low 52°.
Pressure29.85 inHg
Wind23.4 mph NE
Humidity27%
Visibility—
Dew point30°
Sun, 2549° / 37°0.04
49 °
May Valley, Sunday, 25 October
Light rain. High 49°, low 37°.
Pressure30.18 inHg
Wind20.1 mph NE
Humidity79%
Visibility—
Dew point36°
Mon, 2657° / 34°0.01
57 °
May Valley, Monday, 26 October
Light rain. High 57°, low 34°.
Pressure30.03 inHg
Wind12.9 mph N
Humidity38%
Visibility—
Dew point25°
Tue, 2764° / 41°0
64 °
May Valley, Tuesday, 27 October
Clear. High 64°, low 41°.
Pressure29.85 inHg
Wind9.7 mph SE
Humidity39%
Visibility—
Dew point31°
Wed, 2872° / 45°0
72 °
May Valley, Wednesday, 28 October
Partly cloudy. High 72°, low 45°.
Pressure29.59 inHg
Wind7.6 mph S
Humidity26%
Visibility—
Dew point28°
Thu, 2962° / 48°0.04
62 °
May Valley, Thursday, 29 October
Light rain. High 62°, low 48°.
Pressure29.65 inHg
Wind17.1 mph NE
Humidity25%
Visibility—
Dew point24°
Fri, 3060° / 41°0
60 °
May Valley, Friday, 30 October
Clear. High 60°, low 41°.
Pressure29.94 inHg
Wind16.6 mph NW
Humidity23%
Visibility—
Dew point17°
Sat, 3168° / 44°0
68 °
May Valley, Saturday, 31 October
Mostly clear. High 68°, low 44°.
Pressure29.97 inHg
Wind10.4 mph SE
Humidity26%
Visibility—
Dew point25°
From day 17 onward the outlook is built from 60-year climate statistics
Sun, 0159° / 36°0.06
59 °
May Valley, Sunday, 1 November
Climate normal for this date — 60-year average.
Average high59°
Average low36°
Average precipitation0.06 in
Chance of precipitation20%
Record high79° (2012)
Record low9° (1991)
Mon, 0258° / 36°0.03
58 °
May Valley, Monday, 2 November
Climate normal for this date — 60-year average.
Average high58°
Average low36°
Average precipitation0.03 in
Chance of precipitation18%
Record high80° (2025)
Record low4° (1991)
Tue, 0358° / 35°0.03
58 °
May Valley, Tuesday, 3 November
Climate normal for this date — 60-year average.
Average high58°
Average low35°
Average precipitation0.03 in
Chance of precipitation7%
Record high77° (2015)
Record low-5° (1991)
Wed, 0460° / 35°0.01
60 °
May Valley, Wednesday, 4 November
Climate normal for this date — 60-year average.
Average high60°
Average low35°
Average precipitation0.01 in
Chance of precipitation10%
Record high82° (2020)
Record low8° (1991)
Thu, 0560° / 36°0
60 °
May Valley, Thursday, 5 November
Climate normal for this date — 60-year average.
Average high60°
Average low36°
Average precipitation0 in
Chance of precipitation3%
Record high76° (1985)
Record low16° (1991)
Fri, 0661° / 36°0.01
61 °
May Valley, Friday, 6 November
Climate normal for this date — 60-year average.
Average high61°
Average low36°
Average precipitation0.01 in
Chance of precipitation5%
Record high83° (2020)
Record low21° (1993)
Sat, 0762° / 37°0.03
62 °
May Valley, Saturday, 7 November
Climate normal for this date — 60-year average.
Average high62°
Average low37°
Average precipitation0.03 in
Chance of precipitation8%
Record high81° (2023)
Record low23° (1993)
Sun, 0861° / 38°0.05
61 °
May Valley, Sunday, 8 November
Climate normal for this date — 60-year average.
Average high61°
Average low38°
Average precipitation0.05 in
Chance of precipitation18%
Record high81° (1980)
Record low23° (1991)
Mon, 0959° / 36°0.02
59 °
May Valley, Monday, 9 November
Climate normal for this date — 60-year average.
Average high59°
Average low36°
Average precipitation0.02 in
Chance of precipitation8%
Record high76° (2022)
Record low23° (1986)
Tue, 1058° / 34°0.02
58 °
May Valley, Tuesday, 10 November
Climate normal for this date — 60-year average.
Average high58°
Average low34°
Average precipitation0.02 in
Chance of precipitation7%
Record high75° (1980)
Record low22° (1986)
Wed, 1157° / 33°0.02
57 °
May Valley, Wednesday, 11 November
Climate normal for this date — 60-year average.
Average high57°
Average low33°
Average precipitation0.02 in
Chance of precipitation17%
Record high76° (2005)
Record low19° (1986)
Thu, 1256° / 33°0.02
56 °
May Valley, Thursday, 12 November
Climate normal for this date — 60-year average.
Average high56°
Average low33°
Average precipitation0.02 in
Chance of precipitation10%
Record high77° (1980)
Record low15° (2014)
Fri, 1358° / 33°0.02
58 °
May Valley, Friday, 13 November
Climate normal for this date — 60-year average.
Average high58°
Average low33°
Average precipitation0.02 in
Chance of precipitation8%
Record high76° (1999)
Record low11° (2014)
Sat, 1456° / 33°0.04
56 °
May Valley, Saturday, 14 November
Climate normal for this date — 60-year average.
Average high56°
Average low33°
Average precipitation0.04 in
Chance of precipitation17%
Record high77° (2025)
Record low16° (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 May Valley, CO 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 May Valley, CO 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.