Monthly outlook for Treynor, IA: average high 63.4°, average low 46.8°. That is 3° above the climate normal for October. Precipitation is expected on 3 days (about 0.6 inches), against a normal of 4 days and 1.4 inches. The warmest day looks like 24 October (74.6°), the coolest 28 October (27.1°).
63.4°/46.8°
Average high / low
+3°
Above normal
3 / 4
Wet days / normal
0.6 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
20 October – 29 October
63.3°
59.9°
+1.9°
30 October – 8 November
63.7°
54.3°
+5.3°
9 November – 18 November
at normal
49.3°
—
October records over 66 years
92.1°5 October 2024All-time high
13.5°27 October 1997All-time low
Climate normals and records are computed from the nearest reference point — Oakland (12 mi).
Wed, 2174° / 51°0
74 °
Treynor, Wednesday, 21 October
Clear. High 74°, low 51°.
Pressure30.21 inHg
Wind5.7 mph S
Humidity64%
Visibility6.2 mi
Dew point53°
Thu, 2273° / 52°0
73 °
Treynor, Thursday, 22 October
Clear. High 73°, low 52°.
Pressure30.24 inHg
Wind7 mph SE
Humidity57%
Visibility6.2 mi
Dew point53°
Fri, 2373° / 55°0
73 °
Treynor, Friday, 23 October
Overcast. High 73°, low 55°.
Pressure30.12 inHg
Wind13.3 mph SE
Humidity54%
Visibility6.2 mi
Dew point51°
Sat, 2475° / 60°0
75 °
Treynor, Saturday, 24 October
Partly cloudy. High 75°, low 60°.
Pressure30.15 inHg
Wind14.8 mph S
Humidity47%
Visibility—
Dew point48°
Sun, 2569° / 57°0
69 °
Treynor, Sunday, 25 October
Overcast. High 69°, low 57°.
Pressure30.30 inHg
Wind9.2 mph S
Humidity52%
Visibility—
Dew point49°
Mon, 2654° / 45°0.37
54 °
Treynor, Monday, 26 October
Rain. High 54°, low 45°.
Pressure30.33 inHg
Wind11.8 mph NE
Humidity80%
Visibility—
Dew point41°
Tue, 2744° / 34°0.19
44 °
Treynor, Tuesday, 27 October
Rain. High 44°, low 34°.
Pressure30.56 inHg
Wind16.8 mph N
Humidity37%
Visibility—
Dew point19°
Wed, 2844° / 27°0
44 °
Treynor, Wednesday, 28 October
Clear. High 44°, low 27°.
Pressure30.59 inHg
Wind7 mph S
Humidity30%
Visibility—
Dew point10°
Thu, 2954° / 33°0
54 °
Treynor, Thursday, 29 October
Clear. High 54°, low 33°.
Pressure30.21 inHg
Wind11.3 mph S
Humidity35%
Visibility—
Dew point22°
Fri, 3061° / 40°0
61 °
Treynor, Friday, 30 October
Mostly clear. High 61°, low 40°.
Pressure29.97 inHg
Wind11.7 mph S
Humidity53%
Visibility—
Dew point38°
Sat, 3167° / 47°0
67 °
Treynor, Saturday, 31 October
Overcast. High 67°, low 47°.
Pressure29.97 inHg
Wind12.7 mph S
Humidity64%
Visibility—
Dew point50°
Sun, 0163° / 52°0.07
63 °
Treynor, Sunday, 1 November
Light rain. High 63°, low 52°.
Pressure29.91 inHg
Wind9.9 mph S
Humidity67%
Visibility—
Dew point51°
Mon, 0266° / 55°0
66 °
Treynor, Monday, 2 November
Light rain. High 66°, low 55°.
Pressure30.06 inHg
Wind12 mph N
Humidity62%
Visibility—
Dew point48°
Tue, 0364° / 48°0
64 °
Treynor, Tuesday, 3 November
Clear. High 64°, low 48°.
Pressure30.06 inHg
Wind6.8 mph NW
Humidity35%
Visibility—
Dew point32°
Wed, 0461° / 47°0
61 °
Treynor, Wednesday, 4 November
Overcast. High 61°, low 47°.
Pressure29.94 inHg
Wind14.1 mph S
Humidity54%
Visibility—
Dew point43°
From day 17 onward the outlook is built from 60-year climate statistics
Thu, 0553° / 37°0.06
53 °
Treynor, Thursday, 5 November
Climate normal for this date — 60-year average.
Average high53°
Average low37°
Average precipitation0.06 in
Chance of precipitation20%
Record high72° (2015)
Record low20° (1967)
Fri, 0654° / 37°0.04
54 °
Treynor, Friday, 6 November
Climate normal for this date — 60-year average.
Average high54°
Average low37°
Average precipitation0.04 in
Chance of precipitation13%
Record high74° (1980)
Record low13° (1991)
Sat, 0754° / 36°0.02
54 °
Treynor, Saturday, 7 November
Climate normal for this date — 60-year average.
Average high54°
Average low36°
Average precipitation0.02 in
Chance of precipitation10%
Record high72° (2001)
Record low-4° (1991)
Sun, 0853° / 37°0.06
53 °
Treynor, Sunday, 8 November
Climate normal for this date — 60-year average.
Average high53°
Average low37°
Average precipitation0.06 in
Chance of precipitation17%
Record high78° (1999)
Record low-1° (1991)
Mon, 0953° / 36°0.11
53 °
Treynor, Monday, 9 November
Climate normal for this date — 60-year average.
Average high53°
Average low36°
Average precipitation0.11 in
Chance of precipitation30%
Record high74° (1999)
Record low17° (2018)
Tue, 1049° / 34°0.08
49 °
Treynor, Tuesday, 10 November
Climate normal for this date — 60-year average.
Average high49°
Average low34°
Average precipitation0.08 in
Chance of precipitation27%
Record high75° (2012)
Record low10° (2018)
Wed, 1148° / 31°0.07
48 °
Treynor, Wednesday, 11 November
Climate normal for this date — 60-year average.
Average high48°
Average low31°
Average precipitation0.07 in
Chance of precipitation18%
Record high72° (1964)
Record low7° (1986)
Thu, 1247° / 31°0.06
47 °
Treynor, Thursday, 12 November
Climate normal for this date — 60-year average.
Average high47°
Average low31°
Average precipitation0.06 in
Chance of precipitation25%
Record high74° (2005)
Record low1° (1968)
Fri, 1349° / 32°0.07
49 °
Treynor, Friday, 13 November
Climate normal for this date — 60-year average.
Average high49°
Average low32°
Average precipitation0.07 in
Chance of precipitation20%
Record high78° (1999)
Record low4° (1986)
Sat, 1449° / 34°0.02
49 °
Treynor, Saturday, 14 November
Climate normal for this date — 60-year average.
Average high49°
Average low34°
Average precipitation0.02 in
Chance of precipitation10%
Record high72° (2025)
Record low11° (2014)
Sun, 1549° / 33°0.06
49 °
Treynor, Sunday, 15 November
Climate normal for this date — 60-year average.
Average high49°
Average low33°
Average precipitation0.06 in
Chance of precipitation22%
Record high70° (2001)
Record low1° (1972)
Mon, 1650° / 33°0.04
50 °
Treynor, Monday, 16 November
Climate normal for this date — 60-year average.
Average high50°
Average low33°
Average precipitation0.04 in
Chance of precipitation13%
Record high69° (2001)
Record low11° (2014)
Tue, 1750° / 34°0.08
50 °
Treynor, Tuesday, 17 November
Climate normal for this date — 60-year average.
Average high50°
Average low34°
Average precipitation0.08 in
Chance of precipitation28%
Record high69° (2016)
Record low10° (1961)
Wed, 1849° / 33°0.06
49 °
Treynor, Wednesday, 18 November
Climate normal for this date — 60-year average.
Average high49°
Average low33°
Average precipitation0.06 in
Chance of precipitation18%
Record high74° (1999)
Record low6° (1961)
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 Treynor, 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 Treynor, 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.