Monthly outlook for Green Mountain, IA: average high 65.3°, average low 47°. That is 4.4° above the climate normal for October. Precipitation is expected on 2 days (about 0.3 inches), against a normal of 4 days and 1.5 inches. The warmest day looks like 24 October (73.4°), the coolest 26 October (35.1°).
65.3°/47°
Average high / low
+4.4°
Above normal
2 / 4
Wet days / normal
0.3 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
18 October – 27 October
64.3°
58.9°
+3°
28 October – 6 November
66.8°
53.9°
+7.2°
7 November – 16 November
at normal
48.5°
—
October records over 66 years
88.7°6 October 1963All-time high
16.7°30 October 1980All-time low
Climate normals and records are computed from the nearest reference point — Ferguson (11 mi).
Mon, 1963° / 43°0
63 °
Green Mountain, Monday, 19 October
Overcast. High 63°, low 43°.
Pressure30.36 inHg
Wind6.1 mph S
Humidity64%
Visibility6.2 mi
Dew point47°
Tue, 2065° / 43°0
65 °
Green Mountain, Tuesday, 20 October
Clear. High 65°, low 43°.
Pressure30.36 inHg
Wind7.9 mph SE
Humidity57%
Visibility6.2 mi
Dew point47°
Wed, 2168° / 47°0
68 °
Green Mountain, Wednesday, 21 October
Mostly clear. High 68°, low 47°.
Pressure30.24 inHg
Wind6.2 mph S
Humidity63%
Visibility6.2 mi
Dew point50°
Thu, 2269° / 49°0
69 °
Green Mountain, Thursday, 22 October
Clear. High 69°, low 49°.
Pressure30.24 inHg
Wind6.7 mph SE
Humidity52%
Visibility—
Dew point48°
Fri, 2371° / 51°0
71 °
Green Mountain, Friday, 23 October
Overcast. High 71°, low 51°.
Pressure30.21 inHg
Wind13.6 mph SE
Humidity56%
Visibility—
Dew point49°
Sat, 2473° / 52°0
73 °
Green Mountain, Saturday, 24 October
Overcast. High 73°, low 52°.
Pressure30.03 inHg
Wind17.9 mph SW
Humidity45%
Visibility—
Dew point49°
Sun, 2551° / 40°0
51 °
Green Mountain, Sunday, 25 October
Overcast. High 51°, low 40°.
Pressure30.50 inHg
Wind14.8 mph NW
Humidity41%
Visibility—
Dew point26°
Mon, 2656° / 35°0
56 °
Green Mountain, Monday, 26 October
Clear. High 56°, low 35°.
Pressure30.39 inHg
Wind9 mph SW
Humidity37%
Visibility—
Dew point25°
Tue, 2764° / 41°0
64 °
Green Mountain, Tuesday, 27 October
Light rain. High 64°, low 41°.
Pressure30.18 inHg
Wind14.7 mph S
Humidity46%
Visibility—
Dew point35°
Wed, 2869° / 57°0
69 °
Green Mountain, Wednesday, 28 October
Overcast. High 69°, low 57°.
Pressure29.88 inHg
Wind20.6 mph SW
Humidity55%
Visibility—
Dew point49°
Thu, 2972° / 57°0.16
72 °
Green Mountain, Thursday, 29 October
Light rain. High 72°, low 57°.
Pressure29.65 inHg
Wind18.9 mph SW
Humidity77%
Visibility—
Dew point57°
Fri, 3066° / 47°0
66 °
Green Mountain, Friday, 30 October
Clear. High 66°, low 47°.
Pressure29.94 inHg
Wind8.3 mph SE
Humidity23%
Visibility—
Dew point23°
Sat, 3165° / 50°0.01
65 °
Green Mountain, Saturday, 31 October
Light rain. High 65°, low 50°.
Pressure29.85 inHg
Wind18 mph SE
Humidity71%
Visibility—
Dew point53°
Sun, 0164° / 50°0.08
64 °
Green Mountain, Sunday, 1 November
Light rain. High 64°, low 50°.
Pressure29.88 inHg
Wind18.5 mph S
Humidity33%
Visibility—
Dew point30°
Mon, 0265° / 48°0
65 °
Green Mountain, Monday, 2 November
Clear. High 65°, low 48°.
Pressure29.97 inHg
Wind14.3 mph S
Humidity35%
Visibility—
Dew point35°
From day 17 onward the outlook is built from 60-year climate statistics
Tue, 0353° / 38°0.06
53 °
Green Mountain, Tuesday, 3 November
Climate normal for this date — 60-year average.
Average high53°
Average low38°
Average precipitation0.06 in
Chance of precipitation17%
Record high73° (1978)
Record low11° (1991)
Wed, 0452° / 38°0.11
52 °
Green Mountain, Wednesday, 4 November
Climate normal for this date — 60-year average.
Average high52°
Average low38°
Average precipitation0.11 in
Chance of precipitation22%
Record high70° (2008)
Record low9° (1991)
Thu, 0552° / 37°0.06
52 °
Green Mountain, Thursday, 5 November
Climate normal for this date — 60-year average.
Average high52°
Average low37°
Average precipitation0.06 in
Chance of precipitation27%
Record high71° (2015)
Record low20° (1967)
Fri, 0652° / 37°0.07
52 °
Green Mountain, Friday, 6 November
Climate normal for this date — 60-year average.
Average high52°
Average low37°
Average precipitation0.07 in
Chance of precipitation18%
Record high70° (2001)
Record low15° (1991)
Sat, 0752° / 35°0.02
52 °
Green Mountain, 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 low4° (1991)
Sun, 0851° / 35°0.04
51 °
Green Mountain, Sunday, 8 November
Climate normal for this date — 60-year average.
Average high51°
Average low35°
Average precipitation0.04 in
Chance of precipitation17%
Record high77° (1999)
Record low9° (1991)
Mon, 0951° / 36°0.09
51 °
Green Mountain, Monday, 9 November
Climate normal for this date — 60-year average.
Average high51°
Average low36°
Average precipitation0.09 in
Chance of precipitation32%
Record high73° (1999)
Record low17° (1991)
Tue, 1048° / 33°0.1
48 °
Green Mountain, Tuesday, 10 November
Climate normal for this date — 60-year average.
Average high48°
Average low33°
Average precipitation0.1 in
Chance of precipitation30%
Record high74° (2012)
Record low13° (2018)
Wed, 1147° / 32°0.09
47 °
Green Mountain, Wednesday, 11 November
Climate normal for this date — 60-year average.
Average high47°
Average low32°
Average precipitation0.09 in
Chance of precipitation20%
Record high71° (1964)
Record low10° (2019)
Thu, 1246° / 31°0.06
46 °
Green Mountain, Thursday, 12 November
Climate normal for this date — 60-year average.
Average high46°
Average low31°
Average precipitation0.06 in
Chance of precipitation23%
Record high66° (2005)
Record low-2° (2019)
Fri, 1347° / 31°0.07
47 °
Green Mountain, Friday, 13 November
Climate normal for this date — 60-year average.
Average high47°
Average low31°
Average precipitation0.07 in
Chance of precipitation28%
Record high75° (1999)
Record low6° (1986)
Sat, 1447° / 32°0.03
47 °
Green Mountain, Saturday, 14 November
Climate normal for this date — 60-year average.
Average high47°
Average low32°
Average precipitation0.03 in
Chance of precipitation20%
Record high71° (1964)
Record low15° (1986)
Sun, 1547° / 32°0.06
47 °
Green Mountain, Sunday, 15 November
Climate normal for this date — 60-year average.
Average high47°
Average low32°
Average precipitation0.06 in
Chance of precipitation22%
Record high69° (2001)
Record low4° (1972)
Mon, 1648° / 32°0.04
48 °
Green Mountain, Monday, 16 November
Climate normal for this date — 60-year average.
Average high48°
Average low32°
Average precipitation0.04 in
Chance of precipitation25%
Record high69° (2001)
Record low13° (1997)
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 Green Mountain, 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 Green Mountain, 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.