Monthly outlook for Iona, TX: average high 75.6°, average low 58.9°. That is 0.9° above the climate normal for October. Precipitation is expected on 5 days (about 2.1 inches), against a normal of 4 days and 2.0 inches. The warmest day looks like 29 October (83.9°), the coolest 18 October (44°).
75.6°/58.9°
Average high / low
+0.9°
Above normal
5 / 4
Wet days / normal
2.1 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
16 October – 25 October
74.4°
75.1°
-0.4°
26 October – 4 November
77.5°
70.8°
+3.8°
5 November – 14 November
at normal
67.5°
—
October records over 66 years
99.9°13 October 2024All-time high
27.9°31 October 2019All-time low
Climate normals and records are computed from the nearest reference point — Cresson (11 mi).
Sat, 1759° / 45°0
59 °
Iona, Saturday, 17 October
Clear. High 59°, low 45°.
Pressure30.56 inHg
Wind8.9 mph N
Humidity56%
Visibility6.2 mi
Dew point41°
Sun, 1867° / 44°0
67 °
Iona, Sunday, 18 October
Clear. High 67°, low 44°.
Pressure30.42 inHg
Wind4 mph SE
Humidity50%
Visibility6.2 mi
Dew point44°
Mon, 1972° / 51°0
72 °
Iona, Monday, 19 October
Clear. High 72°, low 51°.
Pressure30.27 inHg
Wind7 mph SE
Humidity38%
Visibility6.2 mi
Dew point42°
Tue, 2076° / 53°0
76 °
Iona, Tuesday, 20 October
Partly cloudy. High 76°, low 53°.
Pressure30.21 inHg
Wind5.8 mph SE
Humidity36%
Visibility—
Dew point42°
Wed, 2179° / 55°0
79 °
Iona, Wednesday, 21 October
Clear. High 79°, low 55°.
Pressure30.21 inHg
Wind3.7 mph SE
Humidity32%
Visibility—
Dew point41°
Thu, 2282° / 60°0
82 °
Iona, Thursday, 22 October
Overcast. High 82°, low 60°.
Pressure30.15 inHg
Wind7.7 mph S
Humidity30%
Visibility—
Dew point43°
Fri, 2383° / 63°0
83 °
Iona, Friday, 23 October
Overcast. High 83°, low 63°.
Pressure30.09 inHg
Wind10.6 mph S
Humidity30%
Visibility—
Dew point44°
Sat, 2481° / 62°0
81 °
Iona, Saturday, 24 October
Overcast. High 81°, low 62°.
Pressure30.09 inHg
Wind13.9 mph S
Humidity40%
Visibility—
Dew point50°
Sun, 2582° / 64°0
82 °
Iona, Sunday, 25 October
Overcast. High 82°, low 64°.
Pressure30.00 inHg
Wind15.6 mph S
Humidity50%
Visibility—
Dew point56°
Mon, 2677° / 67°0.02
77 °
Iona, Monday, 26 October
Light rain. High 77°, low 67°.
Pressure30.06 inHg
Wind12.1 mph NE
Humidity61%
Visibility—
Dew point60°
Tue, 2779° / 63°0.01
79 °
Iona, Tuesday, 27 October
Light rain. High 79°, low 63°.
Pressure30.03 inHg
Wind20.8 mph S
Humidity45%
Visibility—
Dew point52°
Wed, 2873° / 64°0.28
73 °
Iona, Wednesday, 28 October
Rain. High 73°, low 64°.
Pressure29.97 inHg
Wind19.2 mph S
Humidity83%
Visibility—
Dew point63°
Thu, 2984° / 66°0.04
84 °
Iona, Thursday, 29 October
Light rain. High 84°, low 66°.
Pressure29.94 inHg
Wind15.9 mph SW
Humidity59%
Visibility—
Dew point64°
Fri, 3081° / 69°0.23
81 °
Iona, Friday, 30 October
Light rain. High 81°, low 69°.
Pressure29.85 inHg
Wind19.4 mph S
Humidity74%
Visibility—
Dew point66°
Sat, 3171° / 61°1.19
71 °
Iona, Saturday, 31 October
Heavy rain. High 71°, low 61°.
Pressure29.80 inHg
Wind22.4 mph S
Humidity82%
Visibility—
Dew point60°
From day 17 onward the outlook is built from 60-year climate statistics
Sun, 0170° / 53°0.13
70 °
Iona, Sunday, 1 November
Climate normal for this date — 60-year average.
Average high70°
Average low53°
Average precipitation0.13 in
Chance of precipitation28%
Record high86° (2012)
Record low31° (2019)
Mon, 0269° / 51°0.08
69 °
Iona, Monday, 2 November
Climate normal for this date — 60-year average.
Average high69°
Average low51°
Average precipitation0.08 in
Chance of precipitation17%
Record high91° (2017)
Record low32° (1991)
Tue, 0368° / 51°0.12
68 °
Iona, Tuesday, 3 November
Climate normal for this date — 60-year average.
Average high68°
Average low51°
Average precipitation0.12 in
Chance of precipitation23%
Record high83° (1988)
Record low28° (1991)
Wed, 0469° / 51°0.11
69 °
Iona, Wednesday, 4 November
Climate normal for this date — 60-year average.
Average high69°
Average low51°
Average precipitation0.11 in
Chance of precipitation20%
Record high87° (2017)
Record low26° (1991)
Thu, 0570° / 52°0.09
70 °
Iona, Thursday, 5 November
Climate normal for this date — 60-year average.
Average high70°
Average low52°
Average precipitation0.09 in
Chance of precipitation18%
Record high91° (2017)
Record low33° (1991)
Fri, 0669° / 52°0.1
69 °
Iona, Friday, 6 November
Climate normal for this date — 60-year average.
Average high69°
Average low52°
Average precipitation0.1 in
Chance of precipitation17%
Record high86° (1989)
Record low35° (1991)
Sat, 0769° / 51°0.1
69 °
Iona, Saturday, 7 November
Climate normal for this date — 60-year average.
Average high69°
Average low51°
Average precipitation0.1 in
Chance of precipitation23%
Record high88° (1980)
Record low33° (1993)
Sun, 0868° / 52°0.13
68 °
Iona, Sunday, 8 November
Climate normal for this date — 60-year average.
Average high68°
Average low52°
Average precipitation0.13 in
Chance of precipitation23%
Record high90° (1980)
Record low30° (1991)
Mon, 0969° / 52°0.05
69 °
Iona, Monday, 9 November
Climate normal for this date — 60-year average.
Average high69°
Average low52°
Average precipitation0.05 in
Chance of precipitation22%
Record high86° (1980)
Record low33° (1991)
Tue, 1067° / 51°0.06
67 °
Iona, Tuesday, 10 November
Climate normal for this date — 60-year average.
Average high67°
Average low51°
Average precipitation0.06 in
Chance of precipitation22%
Record high82° (1980)
Record low33° (2025)
Wed, 1167° / 48°0.04
67 °
Iona, Wednesday, 11 November
Climate normal for this date — 60-year average.
Average high67°
Average low48°
Average precipitation0.04 in
Chance of precipitation17%
Record high81° (1969)
Record low29° (2019)
Thu, 1265° / 48°0.06
65 °
Iona, Thursday, 12 November
Climate normal for this date — 60-year average.
Average high65°
Average low48°
Average precipitation0.06 in
Chance of precipitation22%
Record high83° (2005)
Record low20° (2019)
Fri, 1365° / 48°0.06
65 °
Iona, Friday, 13 November
Climate normal for this date — 60-year average.
Average high65°
Average low48°
Average precipitation0.06 in
Chance of precipitation13%
Record high81° (2025)
Record low26° (2019)
Sat, 1466° / 50°0.05
66 °
Iona, Saturday, 14 November
Climate normal for this date — 60-year average.
Average high66°
Average low50°
Average precipitation0.05 in
Chance of precipitation13%
Record high87° (1989)
Record low22° (2018)
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 Iona, TX 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 Iona, TX 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.