Monthly outlook for Greenville, IA: average high 60.8°, average low 44.3°. That is 2.7° above the climate normal for October. Precipitation is expected on 7 days (about 2.2 inches), against a normal of 4 days and 1.1 inches. The warmest day looks like 23 October (74°), the coolest 17 October (28.2°).
60.8°/44.3°
Average high / low
+2.7°
Above normal
7 / 4
Wet days / normal
2.2 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
17 October – 26 October
62.9°
57.5°
+3°
27 October – 5 November
57.5°
52.1°
+3°
6 November – 15 November
at normal
46.3°
—
October records over 66 years
89.1°3 October 2025All-time high
14.2°27 October 2020All-time low
Climate normals and records are computed from the nearest reference point — Webb (8 mi).
Sun, 1863° / 43°0
63 °
Greenville, Sunday, 18 October
Clear. High 63°, low 43°.
Pressure30.18 inHg
Wind13.6 mph S
Humidity55%
Visibility6.2 mi
Dew point40°
Mon, 1962° / 44°0
62 °
Greenville, Monday, 19 October
Overcast. High 62°, low 44°.
Pressure30.27 inHg
Wind8 mph S
Humidity70%
Visibility6.2 mi
Dew point47°
Tue, 2066° / 46°0
66 °
Greenville, Tuesday, 20 October
Clear. High 66°, low 46°.
Pressure30.24 inHg
Wind9.9 mph S
Humidity63%
Visibility6.2 mi
Dew point48°
Wed, 2169° / 51°0
69 °
Greenville, Wednesday, 21 October
Clear. High 69°, low 51°.
Pressure30.15 inHg
Wind9.6 mph S
Humidity59%
Visibility—
Dew point50°
Thu, 2271° / 50°0
71 °
Greenville, Thursday, 22 October
Mostly clear. High 71°, low 50°.
Pressure30.18 inHg
Wind8 mph SE
Humidity61%
Visibility—
Dew point53°
Fri, 2374° / 61°0.12
74 °
Greenville, Friday, 23 October
Light rain. High 74°, low 61°.
Pressure29.88 inHg
Wind21.6 mph S
Humidity57%
Visibility—
Dew point56°
Sat, 2470° / 57°0.06
70 °
Greenville, Saturday, 24 October
Light rain. High 70°, low 57°.
Pressure29.91 inHg
Wind18.9 mph S
Humidity55%
Visibility—
Dew point52°
Sun, 2549° / 41°0.65
49 °
Greenville, Sunday, 25 October
Rain. High 49°, low 41°.
Pressure30.15 inHg
Wind16.2 mph N
Humidity61%
Visibility—
Dew point33°
Mon, 2647° / 33°0
47 °
Greenville, Monday, 26 October
Clear. High 47°, low 33°.
Pressure30.33 inHg
Wind11.1 mph N
Humidity44%
Visibility—
Dew point22°
Tue, 2748° / 35°0.25
48 °
Greenville, Tuesday, 27 October
Rain. High 48°, low 35°.
Pressure30.21 inHg
Wind21 mph S
Humidity44%
Visibility—
Dew point26°
Wed, 2859° / 47°0.1
59 °
Greenville, Wednesday, 28 October
Light rain. High 59°, low 47°.
Pressure29.68 inHg
Wind23.2 mph W
Humidity94%
Visibility—
Dew point53°
Thu, 2959° / 44°0
59 °
Greenville, Thursday, 29 October
Clear. High 59°, low 44°.
Pressure30.09 inHg
Wind27.5 mph NW
Humidity49%
Visibility—
Dew point36°
Fri, 3062° / 49°0.3
62 °
Greenville, Friday, 30 October
Light rain. High 62°, low 49°.
Pressure29.68 inHg
Wind19.5 mph S
Humidity78%
Visibility—
Dew point51°
Sat, 3168° / 41°0.74
68 °
Greenville, Saturday, 31 October
Rain. High 68°, low 41°.
Pressure29.23 inHg
Wind22.1 mph NW
Humidity80%
Visibility—
Dew point61°
Sun, 0149° / 40°0
49 °
Greenville, Sunday, 1 November
Clear. High 49°, low 40°.
Pressure29.97 inHg
Wind20.8 mph NW
Humidity58%
Visibility—
Dew point33°
From day 17 onward the outlook is built from 60-year climate statistics
Mon, 0251° / 36°0.04
51 °
Greenville, Monday, 2 November
Climate normal for this date — 60-year average.
Average high51°
Average low36°
Average precipitation0.04 in
Chance of precipitation18%
Record high74° (2022)
Record low11° (1991)
Tue, 0350° / 35°0.06
50 °
Greenville, Tuesday, 3 November
Climate normal for this date — 60-year average.
Average high50°
Average low35°
Average precipitation0.06 in
Chance of precipitation18%
Record high73° (1978)
Record low4° (1991)
Wed, 0450° / 34°0.03
50 °
Greenville, Wednesday, 4 November
Climate normal for this date — 60-year average.
Average high50°
Average low34°
Average precipitation0.03 in
Chance of precipitation20%
Record high70° (2020)
Record low-12° (1991)
Thu, 0550° / 34°0.06
50 °
Greenville, Thursday, 5 November
Climate normal for this date — 60-year average.
Average high50°
Average low34°
Average precipitation0.06 in
Chance of precipitation22%
Record high69° (2020)
Record low15° (1991)
Fri, 0650° / 35°0.04
50 °
Greenville, Friday, 6 November
Climate normal for this date — 60-year average.
Average high50°
Average low35°
Average precipitation0.04 in
Chance of precipitation23%
Record high71° (2020)
Record low4° (1991)
Sat, 0750° / 33°0.02
50 °
Greenville, Saturday, 7 November
Climate normal for this date — 60-year average.
Average high50°
Average low33°
Average precipitation0.02 in
Chance of precipitation12%
Record high71° (2001)
Record low-16° (1991)
Sun, 0849° / 33°0.04
49 °
Greenville, Sunday, 8 November
Climate normal for this date — 60-year average.
Average high49°
Average low33°
Average precipitation0.04 in
Chance of precipitation17%
Record high75° (1999)
Record low-3° (1991)
Mon, 0948° / 33°0.14
48 °
Greenville, Monday, 9 November
Climate normal for this date — 60-year average.
Average high48°
Average low33°
Average precipitation0.14 in
Chance of precipitation27%
Record high72° (2022)
Record low15° (2018)
Tue, 1045° / 30°0.09
45 °
Greenville, Tuesday, 10 November
Climate normal for this date — 60-year average.
Average high45°
Average low30°
Average precipitation0.09 in
Chance of precipitation28%
Record high72° (2012)
Record low10° (2018)
Wed, 1144° / 28°0.07
44 °
Greenville, Wednesday, 11 November
Climate normal for this date — 60-year average.
Average high44°
Average low28°
Average precipitation0.07 in
Chance of precipitation22%
Record high67° (1964)
Record low4° (1986)
Thu, 1242° / 28°0.07
42 °
Greenville, Thursday, 12 November
Climate normal for this date — 60-year average.
Average high42°
Average low28°
Average precipitation0.07 in
Chance of precipitation23%
Record high66° (2005)
Record low4° (1966)
Fri, 1345° / 29°0.06
45 °
Greenville, Friday, 13 November
Climate normal for this date — 60-year average.
Average high45°
Average low29°
Average precipitation0.06 in
Chance of precipitation28%
Record high71° (1999)
Record low2° (1986)
Sat, 1445° / 30°0.03
45 °
Greenville, Saturday, 14 November
Climate normal for this date — 60-year average.
Average high45°
Average low30°
Average precipitation0.03 in
Chance of precipitation13%
Record high72° (2025)
Record low10° (2014)
Sun, 1546° / 29°0.06
46 °
Greenville, Sunday, 15 November
Climate normal for this date — 60-year average.
Average high46°
Average low29°
Average precipitation0.06 in
Chance of precipitation23%
Record high69° (2001)
Record low8° (1976)
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 Greenville, 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 Greenville, 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.