Monthly outlook for Grand Junction, IA: average high 66.3°, average low 49°. That is 4.5° above the climate normal for October. Precipitation is expected on 5 days (about 1.2 inches), against a normal of 4 days and 1.4 inches. The warmest day looks like 24 October (74.8°), the coolest 17 October (32.6°).
66.3°/49°
Average high / low
+4.5°
Above normal
5 / 4
Wet days / normal
1.2 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
17 October – 26 October
67.4°
59.7°
+4.2°
27 October – 5 November
64.4°
54.4°
+5.5°
6 November – 15 November
at normal
49°
—
October records over 66 years
90°1 October 2023All-time high
13.5°29 October 1980All-time low
Climate normals and records are computed from the nearest reference point — Jefferson (7 mi).
Sun, 1863° / 41°0
63 °
Grand Junction, Sunday, 18 October
Clear. High 63°, low 41°.
Pressure30.27 inHg
Wind14 mph S
Humidity56%
Visibility6.2 mi
Dew point41°
Mon, 1963° / 45°0
63 °
Grand Junction, Monday, 19 October
Overcast. High 63°, low 45°.
Pressure30.30 inHg
Wind8.4 mph S
Humidity66%
Visibility6.2 mi
Dew point48°
Tue, 2067° / 47°0.06
67 °
Grand Junction, Tuesday, 20 October
Light rain. High 67°, low 47°.
Pressure30.30 inHg
Wind6.2 mph SE
Humidity67%
Visibility6.2 mi
Dew point47°
Wed, 2171° / 50°0
71 °
Grand Junction, Wednesday, 21 October
Clear. High 71°, low 50°.
Pressure30.18 inHg
Wind7.2 mph S
Humidity61%
Visibility6.2 mi
Dew point51°
Thu, 2271° / 50°0
71 °
Grand Junction, Thursday, 22 October
Clear. High 71°, low 50°.
Pressure30.21 inHg
Wind7.9 mph SE
Humidity56%
Visibility—
Dew point51°
Fri, 2374° / 56°0.03
74 °
Grand Junction, Friday, 23 October
Light rain. High 74°, low 56°.
Pressure30.00 inHg
Wind15.8 mph SE
Humidity80%
Visibility—
Dew point58°
Sat, 2475° / 65°0.01
75 °
Grand Junction, Saturday, 24 October
Light rain. High 75°, low 65°.
Pressure29.88 inHg
Wind19.8 mph S
Humidity49%
Visibility—
Dew point50°
Sun, 2562° / 50°0
62 °
Grand Junction, Sunday, 25 October
Overcast. High 62°, low 50°.
Pressure30.12 inHg
Wind13.8 mph NW
Humidity52%
Visibility—
Dew point40°
Mon, 2668° / 47°0.18
68 °
Grand Junction, Monday, 26 October
Rain. High 68°, low 47°.
Pressure30.06 inHg
Wind17.2 mph S
Humidity48%
Visibility—
Dew point42°
Tue, 2768° / 63°0.46
68 °
Grand Junction, Tuesday, 27 October
Rain. High 68°, low 63°.
Pressure29.83 inHg
Wind21 mph SW
Humidity76%
Visibility—
Dew point58°
Wed, 2869° / 54°0.28
69 °
Grand Junction, Wednesday, 28 October
Light rain. High 69°, low 54°.
Pressure29.74 inHg
Wind16.8 mph NW
Humidity83%
Visibility—
Dew point62°
Thu, 2958° / 46°0
58 °
Grand Junction, Thursday, 29 October
Overcast. High 58°, low 46°.
Pressure30.06 inHg
Wind11.9 mph S
Humidity44%
Visibility—
Dew point34°
Fri, 3071° / 51°0.2
71 °
Grand Junction, Friday, 30 October
Light rain. High 71°, low 51°.
Pressure29.47 inHg
Wind27.4 mph S
Humidity84%
Visibility—
Dew point58°
Sat, 3164° / 43°0.02
64 °
Grand Junction, Saturday, 31 October
Light rain. High 64°, low 43°.
Pressure29.74 inHg
Wind27.5 mph W
Humidity54%
Visibility—
Dew point32°
Sun, 0157° / 42°0
57 °
Grand Junction, Sunday, 1 November
Overcast. High 57°, low 42°.
Pressure30.12 inHg
Wind12.4 mph SE
Humidity44%
Visibility—
Dew point33°
From day 17 onward the outlook is built from 60-year climate statistics
Mon, 0253° / 38°0.06
53 °
Grand Junction, Monday, 2 November
Climate normal for this date — 60-year average.
Average high53°
Average low38°
Average precipitation0.06 in
Chance of precipitation23%
Record high74° (2022)
Record low10° (1991)
Tue, 0353° / 37°0.07
53 °
Grand Junction, Tuesday, 3 November
Climate normal for this date — 60-year average.
Average high53°
Average low37°
Average precipitation0.07 in
Chance of precipitation23%
Record high74° (2022)
Record low7° (1991)
Wed, 0452° / 37°0.05
52 °
Grand Junction, Wednesday, 4 November
Climate normal for this date — 60-year average.
Average high52°
Average low37°
Average precipitation0.05 in
Chance of precipitation20%
Record high70° (2020)
Record low-3° (1991)
Thu, 0552° / 36°0.05
52 °
Grand Junction, Thursday, 5 November
Climate normal for this date — 60-year average.
Average high52°
Average low36°
Average precipitation0.05 in
Chance of precipitation23%
Record high72° (2015)
Record low19° (1991)
Fri, 0652° / 37°0.06
52 °
Grand Junction, Friday, 6 November
Climate normal for this date — 60-year average.
Average high52°
Average low37°
Average precipitation0.06 in
Chance of precipitation22%
Record high73° (1980)
Record low11° (1991)
Sat, 0752° / 35°0.02
52 °
Grand Junction, Saturday, 7 November
Climate normal for this date — 60-year average.
Average high52°
Average low35°
Average precipitation0.02 in
Chance of precipitation10%
Record high72° (2001)
Record low-8° (1991)
Sun, 0851° / 35°0.04
51 °
Grand Junction, Sunday, 8 November
Climate normal for this date — 60-year average.
Average high51°
Average low35°
Average precipitation0.04 in
Chance of precipitation15%
Record high76° (1999)
Record low-5° (1991)
Mon, 0951° / 35°0.12
51 °
Grand Junction, Monday, 9 November
Climate normal for this date — 60-year average.
Average high51°
Average low35°
Average precipitation0.12 in
Chance of precipitation30%
Record high74° (2022)
Record low17° (1991)
Tue, 1048° / 32°0.09
48 °
Grand Junction, Tuesday, 10 November
Climate normal for this date — 60-year average.
Average high48°
Average low32°
Average precipitation0.09 in
Chance of precipitation27%
Record high75° (2012)
Record low12° (2018)
Wed, 1147° / 30°0.08
47 °
Grand Junction, Wednesday, 11 November
Climate normal for this date — 60-year average.
Average high47°
Average low30°
Average precipitation0.08 in
Chance of precipitation20%
Record high70° (1964)
Record low6° (1986)
Thu, 1246° / 30°0.07
46 °
Grand Junction, Thursday, 12 November
Climate normal for this date — 60-year average.
Average high46°
Average low30°
Average precipitation0.07 in
Chance of precipitation27%
Record high69° (2005)
Record low-4° (2019)
Fri, 1347° / 31°0.07
47 °
Grand Junction, Friday, 13 November
Climate normal for this date — 60-year average.
Average high47°
Average low31°
Average precipitation0.07 in
Chance of precipitation22%
Record high74° (1999)
Record low4° (1986)
Sat, 1447° / 32°0.03
47 °
Grand Junction, Saturday, 14 November
Climate normal for this date — 60-year average.
Average high47°
Average low32°
Average precipitation0.03 in
Chance of precipitation17%
Record high73° (2025)
Record low12° (2014)
Sun, 1548° / 32°0.07
48 °
Grand Junction, Sunday, 15 November
Climate normal for this date — 60-year average.
Average high48°
Average low32°
Average precipitation0.07 in
Chance of precipitation20%
Record high70° (2001)
Record low4° (1972)
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 Grand Junction, IA 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 Grand Junction, IA 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.