Monthly outlook for Norwalk, IA: average high 64.5°, average low 48.1°. That is 1.4° above the climate normal for October. Precipitation is expected on 5 days (about 0.5 inches), against a normal of 4 days and 1.4 inches. The warmest day looks like 10 October (85.2°), the coolest 18 October (26.9°).
64.5°/48.1°
Average high / low
+1.4°
Above normal
5 / 4
Wet days / normal
0.5 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
10 October – 19 October
66.3°
62.8°
+1.9°
20 October – 29 October
61.5°
59.2°
+1.3°
30 October – 8 November
at normal
53.9°
—
October records over 66 years
90.1°1 October 2023All-time high
12.6°29 October 1980All-time low
Climate normals and records are computed from the nearest reference point — Des Moines (7 mi).
Sun, 1184° / 64°0
84 °
Norwalk, Sunday, 11 October
Clear. High 84°, low 64°.
Pressure29.85 inHg
Wind9.4 mph S
Humidity61%
Visibility6.2 mi
Dew point62°
Mon, 1284° / 70°0
84 °
Norwalk, Monday, 12 October
Clear. High 84°, low 70°.
Pressure29.74 inHg
Wind11 mph S
Humidity60%
Visibility6.2 mi
Dew point66°
Tue, 1372° / 60°0.04
72 °
Norwalk, Tuesday, 13 October
Light rain. High 72°, low 60°.
Pressure29.94 inHg
Wind4.9 mph N
Humidity69%
Visibility6.2 mi
Dew point57°
Wed, 1466° / 56°0.04
66 °
Norwalk, Wednesday, 14 October
Light rain. High 66°, low 56°.
Pressure30.15 inHg
Wind7.8 mph NE
Humidity65%
Visibility6.2 mi
Dew point51°
Thu, 1559° / 55°0.06
59 °
Norwalk, Thursday, 15 October
Light rain. High 59°, low 55°.
Pressure30.24 inHg
Wind9.9 mph E
Humidity77%
Visibility—
Dew point51°
Fri, 1656° / 38°0
56 °
Norwalk, Friday, 16 October
Mostly clear. High 56°, low 38°.
Pressure30.09 inHg
Wind28.6 mph NW
Humidity48%
Visibility—
Dew point30°
Sat, 1742° / 30°0
42 °
Norwalk, Saturday, 17 October
Overcast. High 42°, low 30°.
Pressure30.53 inHg
Wind21.6 mph NW
Humidity42%
Visibility—
Dew point18°
Sun, 1850° / 27°0
50 °
Norwalk, Sunday, 18 October
Mostly clear. High 50°, low 27°.
Pressure30.45 inHg
Wind15.3 mph S
Humidity30%
Visibility—
Dew point15°
Mon, 1962° / 41°0
62 °
Norwalk, Monday, 19 October
Overcast. High 62°, low 41°.
Pressure30.18 inHg
Wind15.5 mph SW
Humidity40%
Visibility—
Dew point32°
Tue, 2063° / 48°0
63 °
Norwalk, Tuesday, 20 October
Overcast. High 63°, low 48°.
Pressure30.03 inHg
Wind19 mph S
Humidity40%
Visibility—
Dew point34°
Wed, 2157° / 47°0.15
57 °
Norwalk, Wednesday, 21 October
Rain. High 57°, low 47°.
Pressure29.97 inHg
Wind20.4 mph SW
Humidity66%
Visibility—
Dew point42°
Thu, 2268° / 45°0
68 °
Norwalk, Thursday, 22 October
Clear. High 68°, low 45°.
Pressure30.06 inHg
Wind16.5 mph W
Humidity38%
Visibility—
Dew point38°
Fri, 2361° / 42°0
61 °
Norwalk, Friday, 23 October
Clear. High 61°, low 42°.
Pressure30.24 inHg
Wind7 mph NW
Humidity42%
Visibility—
Dew point33°
Sat, 2464° / 48°0.17
64 °
Norwalk, Saturday, 24 October
Light rain. High 64°, low 48°.
Pressure30.06 inHg
Wind12.5 mph SE
Humidity53%
Visibility—
Dew point42°
Sun, 2556° / 38°0.09
56 °
Norwalk, Sunday, 25 October
Light rain. High 56°, low 38°.
Pressure30.00 inHg
Wind24 mph N
Humidity55%
Visibility—
Dew point40°
From day 17 onward the outlook is built from 60-year climate statistics
Mon, 2658° / 42°0.09
58 °
Norwalk, Monday, 26 October
Climate normal for this date — 60-year average.
Average high58°
Average low42°
Average precipitation0.09 in
Chance of precipitation27%
Record high75° (1989)
Record low24° (2020)
Tue, 2758° / 42°0.09
58 °
Norwalk, Tuesday, 27 October
Climate normal for this date — 60-year average.
Average high58°
Average low42°
Average precipitation0.09 in
Chance of precipitation25%
Record high76° (1966)
Record low19° (1997)
Wed, 2856° / 41°0.07
56 °
Norwalk, Wednesday, 28 October
Climate normal for this date — 60-year average.
Average high56°
Average low41°
Average precipitation0.07 in
Chance of precipitation20%
Record high78° (2016)
Record low23° (1967)
Thu, 2957° / 41°0.09
57 °
Norwalk, Thursday, 29 October
Climate normal for this date — 60-year average.
Average high57°
Average low41°
Average precipitation0.09 in
Chance of precipitation28%
Record high82° (2024)
Record low13° (1980)
Fri, 3057° / 42°0.09
57 °
Norwalk, Friday, 30 October
Climate normal for this date — 60-year average.
Average high57°
Average low42°
Average precipitation0.09 in
Chance of precipitation35%
Record high76° (2024)
Record low19° (1980)
Sat, 3156° / 41°0.12
56 °
Norwalk, Saturday, 31 October
Climate normal for this date — 60-year average.
Average high56°
Average low41°
Average precipitation0.12 in
Chance of precipitation35%
Record high77° (1968)
Record low22° (1993)
Sun, 0155° / 40°0.21
55 °
Norwalk, Sunday, 1 November
Climate normal for this date — 60-year average.
Average high55°
Average low40°
Average precipitation0.21 in
Chance of precipitation37%
Record high74° (1990)
Record low23° (2023)
Mon, 0253° / 39°0.09
53 °
Norwalk, Monday, 2 November
Climate normal for this date — 60-year average.
Average high53°
Average low39°
Average precipitation0.09 in
Chance of precipitation30%
Record high74° (1964)
Record low14° (1991)
Tue, 0354° / 39°0.08
54 °
Norwalk, Tuesday, 3 November
Climate normal for this date — 60-year average.
Average high54°
Average low39°
Average precipitation0.08 in
Chance of precipitation25%
Record high74° (1978)
Record low10° (1991)
Wed, 0453° / 38°0.12
53 °
Norwalk, Wednesday, 4 November
Climate normal for this date — 60-year average.
Average high53°
Average low38°
Average precipitation0.12 in
Chance of precipitation22%
Record high70° (2020)
Record low8° (1991)
Thu, 0553° / 38°0.06
53 °
Norwalk, Thursday, 5 November
Climate normal for this date — 60-year average.
Average high53°
Average low38°
Average precipitation0.06 in
Chance of precipitation27%
Record high73° (2015)
Record low21° (1967)
Fri, 0653° / 38°0.06
53 °
Norwalk, Friday, 6 November
Climate normal for this date — 60-year average.
Average high53°
Average low38°
Average precipitation0.06 in
Chance of precipitation18%
Record high71° (2001)
Record low15° (1991)
Sat, 0753° / 37°0.02
53 °
Norwalk, Saturday, 7 November
Climate normal for this date — 60-year average.
Average high53°
Average low37°
Average precipitation0.02 in
Chance of precipitation8%
Record high72° (1966)
Record low0° (1991)
Sun, 0852° / 37°0.04
52 °
Norwalk, Sunday, 8 November
Climate normal for this date — 60-year average.
Average high52°
Average low37°
Average precipitation0.04 in
Chance of precipitation22%
Record high77° (1999)
Record low-6° (1991)
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 Norwalk, 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 Norwalk, 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.