Monthly outlook for Greenville, IA: average high 58°, average low 46.4°. That is 3.8° above the climate normal for October. Precipitation is expected on 7 days (about 2.0 inches), against a normal of 4 days and 1.0 inches. The warmest day looks like 28 October (70.5°), the coolest 8 November (35.6°).
58°/46.4°
Average high / low
+3.8°
Above normal
7 / 4
Wet days / normal
2.0 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
26 October – 4 November
59.6°
52.7°
+3.8°
5 November – 14 November
55.2°
46.8°
+4.7°
15 November – 24 November
at normal
42.5°
—
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).
Tue, 2760° / 47°0.41
60 °
Greenville, Tuesday, 27 October
Heavy rain. High 60°, low 47°.
Pressure30.12 inHg
Wind7.2 mph SW
Humidity75%
Visibility6.2 mi
Dew point45°
Wed, 2871° / 56°0.04
71 °
Greenville, Wednesday, 28 October
Light rain. High 71°, low 56°.
Pressure30.00 inHg
Wind11 mph S
Humidity67%
Visibility6.2 mi
Dew point55°
Thu, 2965° / 52°0.01
65 °
Greenville, Thursday, 29 October
Light rain. High 65°, low 52°.
Pressure30.12 inHg
Wind5.5 mph NE
Humidity67%
Visibility6.2 mi
Dew point49°
Fri, 3065° / 50°0.42
65 °
Greenville, Friday, 30 October
Rain. High 65°, low 50°.
Pressure30.06 inHg
Wind8.6 mph SE
Humidity73%
Visibility—
Dew point55°
Sat, 3162° / 53°0.55
62 °
Greenville, Saturday, 31 October
Rain. High 62°, low 53°.
Pressure30.06 inHg
Wind11.2 mph S
Humidity71%
Visibility—
Dew point52°
Sun, 0157° / 49°0
57 °
Greenville, Sunday, 1 November
Overcast. High 57°, low 49°.
Pressure30.06 inHg
Wind9.1 mph SE
Humidity76%
Visibility—
Dew point48°
Mon, 0258° / 50°0
58 °
Greenville, Monday, 2 November
Overcast. High 58°, low 50°.
Pressure29.97 inHg
Wind6.5 mph S
Humidity82%
Visibility—
Dew point49°
Tue, 0357° / 45°0.05
57 °
Greenville, Tuesday, 3 November
Light rain. High 57°, low 45°.
Pressure30.15 inHg
Wind13.4 mph N
Humidity40%
Visibility—
Dew point31°
Wed, 0451° / 42°0
51 °
Greenville, Wednesday, 4 November
Overcast. High 51°, low 42°.
Pressure30.36 inHg
Wind10.2 mph E
Humidity57%
Visibility—
Dew point34°
Thu, 0545° / 43°0
45 °
Greenville, Thursday, 5 November
Overcast. High 45°, low 43°.
Pressure30.39 inHg
Wind13.8 mph S
Humidity75%
Visibility—
Dew point36°
Fri, 0660° / 43°0
60 °
Greenville, Friday, 6 November
Overcast. High 60°, low 43°.
Pressure29.83 inHg
Wind21 mph S
Humidity81%
Visibility—
Dew point45°
Sat, 0766° / 50°0.04
66 °
Greenville, Saturday, 7 November
Light rain. High 66°, low 50°.
Pressure29.65 inHg
Wind19.6 mph S
Humidity67%
Visibility—
Dew point54°
Sun, 0846° / 36°0
46 °
Greenville, Sunday, 8 November
Clear. High 46°, low 36°.
Pressure30.36 inHg
Wind14.4 mph NW
Humidity50%
Visibility—
Dew point25°
Mon, 0956° / 37°0
56 °
Greenville, Monday, 9 November
Overcast. High 56°, low 37°.
Pressure30.12 inHg
Wind17.4 mph S
Humidity53%
Visibility—
Dew point31°
Tue, 1058° / 47°0
58 °
Greenville, Tuesday, 10 November
Overcast. High 58°, low 47°.
Pressure29.85 inHg
Wind8.5 mph NE
Humidity71%
Visibility—
Dew point47°
From day 17 onward the outlook is built from 60-year climate statistics
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)
Mon, 1645° / 29°0.07
45 °
Greenville, Monday, 16 November
Climate normal for this date — 60-year average.
Average high45°
Average low29°
Average precipitation0.07 in
Chance of precipitation22%
Record high70° (2001)
Record low-3° (1976)
Tue, 1744° / 30°0.07
44 °
Greenville, Tuesday, 17 November
Climate normal for this date — 60-year average.
Average high44°
Average low30°
Average precipitation0.07 in
Chance of precipitation25%
Record high65° (2001)
Record low8° (2014)
Wed, 1844° / 29°0.07
44 °
Greenville, Wednesday, 18 November
Climate normal for this date — 60-year average.
Average high44°
Average low29°
Average precipitation0.07 in
Chance of precipitation27%
Record high71° (1999)
Record low6° (2014)
Thu, 1943° / 29°0.08
43 °
Greenville, Thursday, 19 November
Climate normal for this date — 60-year average.
Average high43°
Average low29°
Average precipitation0.08 in
Chance of precipitation27%
Record high62° (2020)
Record low2° (1997)
Fri, 2041° / 27°0.08
41 °
Greenville, Friday, 20 November
Climate normal for this date — 60-year average.
Average high41°
Average low27°
Average precipitation0.08 in
Chance of precipitation20%
Record high63° (2003)
Record low7° (2000)
Sat, 2141° / 25°0.04
41 °
Greenville, Saturday, 21 November
Climate normal for this date — 60-year average.
Average high41°
Average low25°
Average precipitation0.04 in
Chance of precipitation13%
Record high69° (1990)
Record low-7° (2000)
Sun, 2241° / 26°0.03
41 °
Greenville, Sunday, 22 November
Climate normal for this date — 60-year average.
Average high41°
Average low26°
Average precipitation0.03 in
Chance of precipitation15%
Record high62° (1966)
Record low6° (2000)
Mon, 2340° / 25°0.05
40 °
Greenville, Monday, 23 November
Climate normal for this date — 60-year average.
Average high40°
Average low25°
Average precipitation0.05 in
Chance of precipitation23%
Record high57° (2006)
Record low0° (1985)
Tue, 2440° / 25°0.06
40 °
Greenville, Tuesday, 24 November
Climate normal for this date — 60-year average.
Average high40°
Average low25°
Average precipitation0.06 in
Chance of precipitation18%
Record high62° (2011)
Record low-6° (1985)
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.