Monthly outlook for Halfa, IA: average high 65°, average low 49.1°. That is 2.8° above the climate normal for October. Precipitation is expected on 5 days (about 2.6 inches), against a normal of 4 days and 1.3 inches. The warmest day looks like 10 October (80.6°), the coolest 17 October (36.3°).
65°/49.1°
Average high / low
+2.8°
Above normal
5 / 4
Wet days / normal
2.6 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
7 October – 16 October
70.6°
61.1°
+5.3°
17 October – 26 October
55.7°
57.1°
-0.8°
27 October – 5 November
at normal
51.9°
—
October records over 66 years
88.7°3 October 2025All-time high
15.1°27 October 2020All-time low
Climate normals and records are computed from the nearest reference point — Fenton (11 mi).
Thu, 0874° / 48°0
74 °
Halfa, Thursday, 8 October
Overcast. High 74°, low 48°.
Pressure30.12 inHg
Wind1.9 mph S
Humidity43%
Visibility6.2 mi
Dew point42°
Fri, 0978° / 52°0.07
78 °
Halfa, Friday, 9 October
Rain. High 78°, low 52°.
Pressure29.94 inHg
Wind8.3 mph S
Humidity68%
Visibility6.2 mi
Dew point58°
Sat, 1081° / 64°0
81 °
Halfa, Saturday, 10 October
Clear. High 81°, low 64°.
Pressure29.83 inHg
Wind18.6 mph S
Humidity50%
Visibility6.2 mi
Dew point56°
Sun, 1178° / 62°0
78 °
Halfa, Sunday, 11 October
Partly cloudy. High 78°, low 62°.
Pressure29.83 inHg
Wind16.1 mph S
Humidity46%
Visibility6.2 mi
Dew point52°
Mon, 1264° / 53°0.14
64 °
Halfa, Monday, 12 October
Rain. High 64°, low 53°.
Pressure29.83 inHg
Wind13.1 mph NW
Humidity84%
Visibility—
Dew point55°
Tue, 1360° / 47°0
60 °
Halfa, Tuesday, 13 October
Overcast. High 60°, low 47°.
Pressure30.09 inHg
Wind14 mph N
Humidity53%
Visibility—
Dew point38°
Wed, 1471° / 54°1.07
71 °
Halfa, Wednesday, 14 October
Rain. High 71°, low 54°.
Pressure29.68 inHg
Wind15.9 mph SE
Humidity95%
Visibility—
Dew point58°
Thu, 1574° / 52°0.63
74 °
Halfa, Thursday, 15 October
Rain. High 74°, low 52°.
Pressure29.65 inHg
Wind23.8 mph NW
Humidity84%
Visibility—
Dew point52°
Fri, 1651° / 42°0
51 °
Halfa, Friday, 16 October
Mostly clear. High 51°, low 42°.
Pressure30.47 inHg
Wind16.4 mph NW
Humidity53%
Visibility—
Dew point33°
Sat, 1752° / 36°0
52 °
Halfa, Saturday, 17 October
Clear. High 52°, low 36°.
Pressure30.47 inHg
Wind10 mph N
Humidity47%
Visibility—
Dew point28°
Sun, 1857° / 39°0
57 °
Halfa, Sunday, 18 October
Partly cloudy. High 57°, low 39°.
Pressure30.36 inHg
Wind13.7 mph S
Humidity39%
Visibility—
Dew point28°
Mon, 1951° / 44°0.64
51 °
Halfa, Monday, 19 October
Rain. High 51°, low 44°.
Pressure30.18 inHg
Wind22 mph S
Humidity81%
Visibility—
Dew point41°
Tue, 2063° / 48°0
63 °
Halfa, Tuesday, 20 October
Clear. High 63°, low 48°.
Pressure30.18 inHg
Wind14.1 mph S
Humidity53%
Visibility—
Dew point42°
Wed, 2160° / 48°0.02
60 °
Halfa, Wednesday, 21 October
Light rain. High 60°, low 48°.
Pressure30.15 inHg
Wind7.4 mph N
Humidity55%
Visibility—
Dew point42°
Thu, 2252° / 47°0
52 °
Halfa, Thursday, 22 October
Overcast. High 52°, low 47°.
Pressure29.94 inHg
Wind10.6 mph NE
Humidity56%
Visibility—
Dew point35°
From day 17 onward the outlook is built from 60-year climate statistics
Fri, 2356° / 42°0.13
56 °
Halfa, Friday, 23 October
Climate normal for this date — 60-year average.
Average high56°
Average low42°
Average precipitation0.13 in
Chance of precipitation37%
Record high81° (2022)
Record low23° (1981)
Sat, 2456° / 40°0.07
56 °
Halfa, Saturday, 24 October
Climate normal for this date — 60-year average.
Average high56°
Average low40°
Average precipitation0.07 in
Chance of precipitation33%
Record high75° (1989)
Record low19° (2020)
Sun, 2555° / 39°0.05
55 °
Halfa, Sunday, 25 October
Climate normal for this date — 60-year average.
Average high55°
Average low39°
Average precipitation0.05 in
Chance of precipitation18%
Record high77° (1989)
Record low25° (2020)
Mon, 2656° / 39°0.04
56 °
Halfa, Monday, 26 October
Climate normal for this date — 60-year average.
Average high56°
Average low39°
Average precipitation0.04 in
Chance of precipitation15%
Record high76° (1989)
Record low20° (2020)
Tue, 2755° / 39°0.08
55 °
Halfa, Tuesday, 27 October
Climate normal for this date — 60-year average.
Average high55°
Average low39°
Average precipitation0.08 in
Chance of precipitation25%
Record high74° (1999)
Record low15° (2020)
Wed, 2853° / 38°0.06
53 °
Halfa, Wednesday, 28 October
Climate normal for this date — 60-year average.
Average high53°
Average low38°
Average precipitation0.06 in
Chance of precipitation22%
Record high75° (2016)
Record low19° (1967)
Thu, 2954° / 38°0.08
54 °
Halfa, Thursday, 29 October
Climate normal for this date — 60-year average.
Average high54°
Average low38°
Average precipitation0.08 in
Chance of precipitation25%
Record high79° (2024)
Record low22° (1988)
Fri, 3054° / 38°0.07
54 °
Halfa, Friday, 30 October
Climate normal for this date — 60-year average.
Average high54°
Average low38°
Average precipitation0.07 in
Chance of precipitation28%
Record high74° (2024)
Record low20° (1991)
Sat, 3152° / 37°0.1
52 °
Halfa, Saturday, 31 October
Climate normal for this date — 60-year average.
Average high52°
Average low37°
Average precipitation0.1 in
Chance of precipitation30%
Record high73° (1968)
Record low19° (1993)
Sun, 0151° / 36°0.09
51 °
Halfa, Sunday, 1 November
Climate normal for this date — 60-year average.
Average high51°
Average low36°
Average precipitation0.09 in
Chance of precipitation18%
Record high72° (2022)
Record low21° (2002)
Mon, 0251° / 36°0.04
51 °
Halfa, Monday, 2 November
Climate normal for this date — 60-year average.
Average high51°
Average low36°
Average precipitation0.04 in
Chance of precipitation15%
Record high74° (2022)
Record low12° (1991)
Tue, 0350° / 35°0.06
50 °
Halfa, Tuesday, 3 November
Climate normal for this date — 60-year average.
Average high50°
Average low35°
Average precipitation0.06 in
Chance of precipitation22%
Record high73° (2008)
Record low4° (1991)
Wed, 0449° / 34°0.04
49 °
Halfa, Wednesday, 4 November
Climate normal for this date — 60-year average.
Average high49°
Average low34°
Average precipitation0.04 in
Chance of precipitation18%
Record high70° (2020)
Record low-10° (1991)
Thu, 0550° / 34°0.06
50 °
Halfa, Thursday, 5 November
Climate normal for this date — 60-year average.
Average high50°
Average low34°
Average precipitation0.06 in
Chance of precipitation30%
Record high69° (2015)
Record low14° (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 Halfa, 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 Halfa, 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.