Monthly outlook for Truro, IA: average high 59.9°, average low 44.8°. That is 0.2° below the climate normal for October. Precipitation is expected on 6 days (about 1.7 inches), against a normal of 4 days and 1.4 inches. The warmest day looks like 21 October (72.5°), the coolest 26 October (34.8°).
59.9°/44.8°
Average high / low
−0.2°
Below normal
6 / 4
Wet days / normal
1.7 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
14 October – 23 October
62.9°
61.7°
+0.7°
24 October – 2 November
54.8°
56.8°
-1.1°
3 November – 12 November
at normal
51.6°
—
October records over 66 years
91.8°5 October 1963All-time high
9.9°29 October 1980All-time low
Climate normals and records are computed from the nearest reference point — Osceola (13 mi).
Thu, 1565° / 54°0.33
65 °
Truro, Thursday, 15 October
Rain. High 65°, low 54°.
Pressure29.91 inHg
Wind6.3 mph E
Humidity95%
Visibility2.8 mi
Dew point61°
Fri, 1656° / 44°0
56 °
Truro, Friday, 16 October
Overcast. High 56°, low 44°.
Pressure30.39 inHg
Wind23.8 mph NW
Humidity57%
Visibility6.2 mi
Dew point36°
Sat, 1757° / 36°0
57 °
Truro, Saturday, 17 October
Clear. High 57°, low 36°.
Pressure30.56 inHg
Wind7.7 mph SW
Humidity44%
Visibility6.2 mi
Dew point32°
Sun, 1862° / 43°0
62 °
Truro, Sunday, 18 October
Clear. High 62°, low 43°.
Pressure30.33 inHg
Wind13.8 mph S
Humidity53%
Visibility—
Dew point40°
Mon, 1966° / 46°0
66 °
Truro, Monday, 19 October
Clear. High 66°, low 46°.
Pressure30.24 inHg
Wind13.5 mph S
Humidity53%
Visibility—
Dew point44°
Tue, 2067° / 49°0
67 °
Truro, Tuesday, 20 October
Clear. High 67°, low 49°.
Pressure30.24 inHg
Wind10 mph SW
Humidity53%
Visibility—
Dew point46°
Wed, 2173° / 50°0
73 °
Truro, Wednesday, 21 October
Clear. High 73°, low 50°.
Pressure30.06 inHg
Wind11.4 mph SW
Humidity55%
Visibility—
Dew point50°
Thu, 2258° / 43°0
58 °
Truro, Thursday, 22 October
Clear. High 58°, low 43°.
Pressure30.30 inHg
Wind12.2 mph NE
Humidity45%
Visibility—
Dew point34°
Fri, 2358° / 36°0
58 °
Truro, Friday, 23 October
Clear. High 58°, low 36°.
Pressure30.36 inHg
Wind12.6 mph SE
Humidity42%
Visibility—
Dew point31°
Sat, 2448° / 44°0.35
48 °
Truro, Saturday, 24 October
Rain. High 48°, low 44°.
Pressure30.21 inHg
Wind9 mph SE
Humidity86%
Visibility—
Dew point41°
Sun, 2552° / 40°0.07
52 °
Truro, Sunday, 25 October
Light rain. High 52°, low 40°.
Pressure30.18 inHg
Wind14.8 mph NW
Humidity52%
Visibility—
Dew point32°
Mon, 2656° / 35°0
56 °
Truro, Monday, 26 October
Clear. High 56°, low 35°.
Pressure30.03 inHg
Wind13 mph SW
Humidity47%
Visibility—
Dew point31°
Tue, 2762° / 42°0
62 °
Truro, Tuesday, 27 October
Clear. High 62°, low 42°.
Pressure29.91 inHg
Wind9 mph SW
Humidity58%
Visibility—
Dew point42°
Wed, 2855° / 51°0.28
55 °
Truro, Wednesday, 28 October
Rain. High 55°, low 51°.
Pressure29.88 inHg
Wind7.6 mph E
Humidity83%
Visibility—
Dew point49°
Thu, 2956° / 49°0.15
56 °
Truro, Thursday, 29 October
Light rain. High 56°, low 49°.
Pressure29.91 inHg
Wind9.7 mph SE
Humidity84%
Visibility—
Dew point50°
From day 17 onward the outlook is built from 60-year climate statistics
Fri, 3057° / 42°0.11
57 °
Truro, Friday, 30 October
Climate normal for this date — 60-year average.
Average high57°
Average low42°
Average precipitation0.11 in
Chance of precipitation37%
Record high75° (2024)
Record low18° (1980)
Sat, 3156° / 41°0.13
56 °
Truro, Saturday, 31 October
Climate normal for this date — 60-year average.
Average high56°
Average low41°
Average precipitation0.13 in
Chance of precipitation35%
Record high77° (1968)
Record low20° (1993)
Sun, 0156° / 40°0.21
56 °
Truro, Sunday, 1 November
Climate normal for this date — 60-year average.
Average high56°
Average low40°
Average precipitation0.21 in
Chance of precipitation37%
Record high74° (1990)
Record low22° (2002)
Mon, 0253° / 39°0.08
53 °
Truro, Monday, 2 November
Climate normal for this date — 60-year average.
Average high53°
Average low39°
Average precipitation0.08 in
Chance of precipitation28%
Record high76° (1964)
Record low13° (1991)
Tue, 0354° / 39°0.09
54 °
Truro, Tuesday, 3 November
Climate normal for this date — 60-year average.
Average high54°
Average low39°
Average precipitation0.09 in
Chance of precipitation28%
Record high74° (1978)
Record low9° (1991)
Wed, 0453° / 38°0.1
53 °
Truro, Wednesday, 4 November
Climate normal for this date — 60-year average.
Average high53°
Average low38°
Average precipitation0.1 in
Chance of precipitation23%
Record high71° (1978)
Record low8° (1991)
Thu, 0553° / 38°0.06
53 °
Truro, Thursday, 5 November
Climate normal for this date — 60-year average.
Average high53°
Average low38°
Average precipitation0.06 in
Chance of precipitation23%
Record high72° (2015)
Record low20° (1967)
Fri, 0653° / 37°0.06
53 °
Truro, Friday, 6 November
Climate normal for this date — 60-year average.
Average high53°
Average low37°
Average precipitation0.06 in
Chance of precipitation20%
Record high70° (1980)
Record low16° (1991)
Sat, 0753° / 37°0.02
53 °
Truro, Saturday, 7 November
Climate normal for this date — 60-year average.
Average high53°
Average low37°
Average precipitation0.02 in
Chance of precipitation7%
Record high73° (1966)
Record low-1° (1991)
Sun, 0853° / 37°0.03
53 °
Truro, Sunday, 8 November
Climate normal for this date — 60-year average.
Average high53°
Average low37°
Average precipitation0.03 in
Chance of precipitation22%
Record high75° (1999)
Record low-10° (1991)
Mon, 0953° / 37°0.09
53 °
Truro, Monday, 9 November
Climate normal for this date — 60-year average.
Average high53°
Average low37°
Average precipitation0.09 in
Chance of precipitation28%
Record high72° (1999)
Record low13° (1991)
Tue, 1050° / 34°0.1
50 °
Truro, Tuesday, 10 November
Climate normal for this date — 60-year average.
Average high50°
Average low34°
Average precipitation0.1 in
Chance of precipitation22%
Record high74° (2012)
Record low13° (2018)
Wed, 1149° / 32°0.08
49 °
Truro, Wednesday, 11 November
Climate normal for this date — 60-year average.
Average high49°
Average low32°
Average precipitation0.08 in
Chance of precipitation22%
Record high73° (1964)
Record low10° (1986)
Thu, 1247° / 32°0.06
47 °
Truro, Thursday, 12 November
Climate normal for this date — 60-year average.
Average high47°
Average low32°
Average precipitation0.06 in
Chance of precipitation25%
Record high68° (1999)
Record low2° (2019)
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 Truro, 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 Truro, 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.