Monthly outlook for Grant, CO: average high 48.2°, average low 28.5°. That is 1.4° above the climate normal for October. Precipitation is expected on 9 days (about 2.0 inches), against a normal of 4 days and 0.8 inches. The warmest day looks like 8 October (67.6°), the coolest 17 October (13.7°).
48.2°/28.5°
Average high / low
+1.4°
Above normal
9 / 4
Wet days / normal
2.0 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
8 October – 17 October
50°
46.7°
+1.8°
18 October – 27 October
45.2°
43.1°
+1.2°
28 October – 6 November
at normal
37.8°
—
October records over 66 years
64.9°1 October 2010All-time high
-20.2°30 October 2023All-time low
Climate normals and records are computed from the nearest reference point — Montezuma (14 mi).
Fri, 0967° / 42°0.07
67 °
Grant, Friday, 9 October
Light rain. High 67°, low 42°.
Pressure30.03 inHg
Wind6.3 mph W
Humidity40%
Visibility6.2 mi
Dew point20°
Sat, 1063° / 37°0.06
63 °
Grant, Saturday, 10 October
Light rain. High 63°, low 37°.
Pressure29.88 inHg
Wind9 mph SW
Humidity45%
Visibility6.2 mi
Dew point29°
Sun, 1151° / 34°0.02
51 °
Grant, Sunday, 11 October
Light rain. High 51°, low 34°.
Pressure29.88 inHg
Wind7.6 mph SW
Humidity54%
Visibility6.2 mi
Dew point33°
Mon, 1251° / 31°0
51 °
Grant, Monday, 12 October
Overcast. High 51°, low 31°.
Pressure29.91 inHg
Wind11.2 mph SW
Humidity55%
Visibility6.2 mi
Dew point28°
Tue, 1349° / 30°0.06
49 °
Grant, Tuesday, 13 October
Light snow. High 49°, low 30°.
Pressure29.97 inHg
Wind12.8 mph S
Humidity55%
Visibility—
Dew point28°
Wed, 1438° / 29°0.26
38 °
Grant, Wednesday, 14 October
Snow. High 38°, low 29°.
Pressure29.83 inHg
Wind12 mph W
Humidity74%
Visibility—
Dew point27°
Thu, 1547° / 30°0.8
47 °
Grant, Thursday, 15 October
Snow. High 47°, low 30°.
Pressure29.85 inHg
Wind8.4 mph W
Humidity41%
Visibility—
Dew point22°
Fri, 1628° / 17°0.41
28 °
Grant, Friday, 16 October
Snow. High 28°, low 17°.
Pressure30.39 inHg
Wind6.1 mph NE
Humidity85%
Visibility—
Dew point21°
Sat, 1739° / 14°0
39 °
Grant, Saturday, 17 October
Overcast. High 39°, low 14°.
Pressure30.33 inHg
Wind5.3 mph NW
Humidity85%
Visibility—
Dew point31°
Sun, 1837° / 23°0.2
37 °
Grant, Sunday, 18 October
Snow. High 37°, low 23°.
Pressure30.21 inHg
Wind7.3 mph NE
Humidity89%
Visibility—
Dew point32°
Mon, 1939° / 22°0.04
39 °
Grant, Monday, 19 October
Light snow. High 39°, low 22°.
Pressure30.15 inHg
Wind7.4 mph NW
Humidity85%
Visibility—
Dew point31°
Tue, 2046° / 24°0
46 °
Grant, Tuesday, 20 October
Clear. High 46°, low 24°.
Pressure30.15 inHg
Wind9.3 mph NW
Humidity62%
Visibility—
Dew point30°
Wed, 2148° / 27°0
48 °
Grant, Wednesday, 21 October
Clear. High 48°, low 27°.
Pressure30.12 inHg
Wind6.5 mph NW
Humidity49%
Visibility—
Dew point27°
Thu, 2248° / 29°0
48 °
Grant, Thursday, 22 October
Clear. High 48°, low 29°.
Pressure30.30 inHg
Wind6.1 mph NW
Humidity48%
Visibility—
Dew point25°
Fri, 2353° / 29°0
53 °
Grant, Friday, 23 October
Clear. High 53°, low 29°.
Pressure30.18 inHg
Wind7.9 mph NW
Humidity30%
Visibility—
Dew point18°
From day 17 onward the outlook is built from 60-year climate statistics
Sat, 2442° / 20°0.03
42 °
Grant, Saturday, 24 October
Climate normal for this date — 60-year average.
Average high42°
Average low20°
Average precipitation0.03 in
Chance of precipitation25%
Record high57° (2014)
Record low-8° (1975)
Sun, 2543° / 19°0.06
43 °
Grant, Sunday, 25 October
Climate normal for this date — 60-year average.
Average high43°
Average low19°
Average precipitation0.06 in
Chance of precipitation27%
Record high58° (2021)
Record low-15° (1975)
Mon, 2641° / 20°0.08
41 °
Grant, Monday, 26 October
Climate normal for this date — 60-year average.
Average high41°
Average low20°
Average precipitation0.08 in
Chance of precipitation32%
Record high59° (1977)
Record low-2° (1997)
Tue, 2741° / 19°0.05
41 °
Grant, Tuesday, 27 October
Climate normal for this date — 60-year average.
Average high41°
Average low19°
Average precipitation0.05 in
Chance of precipitation28%
Record high58° (2016)
Record low-5° (2020)
Wed, 2841° / 19°0.06
41 °
Grant, Wednesday, 28 October
Climate normal for this date — 60-year average.
Average high41°
Average low19°
Average precipitation0.06 in
Chance of precipitation30%
Record high53° (1999)
Record low-9° (1970)
Thu, 2939° / 17°0.07
39 °
Grant, Thursday, 29 October
Climate normal for this date — 60-year average.
Average high39°
Average low17°
Average precipitation0.07 in
Chance of precipitation38%
Record high56° (1968)
Record low-7° (1991)
Fri, 3038° / 15°0.06
38 °
Grant, Friday, 30 October
Climate normal for this date — 60-year average.
Average high38°
Average low15°
Average precipitation0.06 in
Chance of precipitation35%
Record high54° (1962)
Record low-20° (2023)
Sat, 3138° / 15°0.05
38 °
Grant, Saturday, 31 October
Climate normal for this date — 60-year average.
Average high38°
Average low15°
Average precipitation0.05 in
Chance of precipitation33%
Record high55° (1999)
Record low-12° (2019)
Sun, 0136° / 16°0.06
36 °
Grant, Sunday, 1 November
Climate normal for this date — 60-year average.
Average high36°
Average low16°
Average precipitation0.06 in
Chance of precipitation35%
Record high51° (1964)
Record low-3° (1979)
Mon, 0237° / 14°0.06
37 °
Grant, Monday, 2 November
Climate normal for this date — 60-year average.
Average high37°
Average low14°
Average precipitation0.06 in
Chance of precipitation23%
Record high54° (2025)
Record low-9° (2004)
Tue, 0337° / 13°0.06
37 °
Grant, Tuesday, 3 November
Climate normal for this date — 60-year average.
Average high37°
Average low13°
Average precipitation0.06 in
Chance of precipitation25%
Record high56° (2025)
Record low-16° (1991)
Wed, 0438° / 14°0.03
38 °
Grant, Wednesday, 4 November
Climate normal for this date — 60-year average.
Average high38°
Average low14°
Average precipitation0.03 in
Chance of precipitation20%
Record high55° (1983)
Record low-7° (1970)
Thu, 0537° / 14°0.04
37 °
Grant, Thursday, 5 November
Climate normal for this date — 60-year average.
Average high37°
Average low14°
Average precipitation0.04 in
Chance of precipitation27%
Record high54° (1975)
Record low-4° (1992)
Fri, 0637° / 13°0.02
37 °
Grant, Friday, 6 November
Climate normal for this date — 60-year average.
Average high37°
Average low13°
Average precipitation0.02 in
Chance of precipitation17%
Record high55° (2020)
Record low-10° (2013)
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 Grant, 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 Grant, 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.