Monthly outlook for Roth, IL: average high 75.5°, average low 53.4°. That is 3.8° above the climate normal for October. Precipitation is expected on 3 days (about 0.9 inches), against a normal of 4 days and 1.9 inches. The warmest day looks like 15 October (92.9°), the coolest 18 October (35.4°).
75.5°/53.4°
Average high / low
+3.8°
Above normal
3 / 4
Wet days / normal
0.9 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
9 October – 18 October
77.5°
69.9°
+4.2°
19 October – 28 October
72.1°
65.6°
+3.6°
29 October – 7 November
at normal
61.7°
—
October records over 66 years
91°2 October 2019All-time high
29.8°31 October 2023All-time low
Climate normals and records are computed from the nearest reference point — Scott City (15 mi).
Sat, 1073° / 55°0.02
73 °
Roth, Saturday, 10 October
Light rain. High 73°, low 55°.
Pressure30.03 inHg
Wind5.5 mph NE
Humidity62%
Visibility6.2 mi
Dew point54°
Sun, 1182° / 54°0
82 °
Roth, Sunday, 11 October
Clear. High 82°, low 54°.
Pressure30.00 inHg
Wind5.1 mph W
Humidity54%
Visibility6.2 mi
Dew point58°
Mon, 1287° / 63°0
87 °
Roth, Monday, 12 October
Clear. High 87°, low 63°.
Pressure30.00 inHg
Wind8.6 mph SW
Humidity48%
Visibility6.2 mi
Dew point61°
Tue, 1388° / 67°0
88 °
Roth, Tuesday, 13 October
Clear. High 88°, low 67°.
Pressure29.94 inHg
Wind8.4 mph SW
Humidity50%
Visibility6.2 mi
Dew point63°
Wed, 1481° / 70°0.43
81 °
Roth, Wednesday, 14 October
Rain. High 81°, low 70°.
Pressure30.03 inHg
Wind10.6 mph W
Humidity94%
Visibility—
Dew point73°
Thu, 1593° / 71°0.11
93 °
Roth, Thursday, 15 October
Light rain. High 93°, low 71°.
Pressure29.97 inHg
Wind16.6 mph SW
Humidity42%
Visibility—
Dew point63°
Fri, 1672° / 58°0.32
72 °
Roth, Friday, 16 October
Rain. High 72°, low 58°.
Pressure30.15 inHg
Wind15.7 mph NW
Humidity38%
Visibility—
Dew point40°
Sat, 1755° / 43°0
55 °
Roth, Saturday, 17 October
Clear. High 55°, low 43°.
Pressure30.39 inHg
Wind17.9 mph NW
Humidity36%
Visibility—
Dew point26°
Sun, 1857° / 35°0
57 °
Roth, Sunday, 18 October
Overcast. High 57°, low 35°.
Pressure30.47 inHg
Wind8.2 mph NE
Humidity36%
Visibility—
Dew point25°
Mon, 1963° / 39°0
63 °
Roth, Monday, 19 October
Overcast. High 63°, low 39°.
Pressure30.39 inHg
Wind6.4 mph E
Humidity27%
Visibility—
Dew point24°
Tue, 2069° / 44°0
69 °
Roth, Tuesday, 20 October
Clear. High 69°, low 44°.
Pressure30.39 inHg
Wind6 mph NE
Humidity28%
Visibility—
Dew point30°
Wed, 2172° / 47°0
72 °
Roth, Wednesday, 21 October
Clear. High 72°, low 47°.
Pressure30.33 inHg
Wind5.3 mph E
Humidity25%
Visibility—
Dew point29°
Thu, 2274° / 50°0
74 °
Roth, Thursday, 22 October
Clear. High 74°, low 50°.
Pressure30.18 inHg
Wind6.3 mph SW
Humidity28%
Visibility—
Dew point34°
Fri, 2376° / 53°0
76 °
Roth, Friday, 23 October
Clear. High 76°, low 53°.
Pressure30.09 inHg
Wind6.8 mph SW
Humidity27%
Visibility—
Dew point36°
Sat, 2478° / 53°0
78 °
Roth, Saturday, 24 October
Partly cloudy. High 78°, low 53°.
Pressure30.09 inHg
Wind8.7 mph SW
Humidity26%
Visibility—
Dew point36°
From day 17 onward the outlook is built from 60-year climate statistics
Sun, 2565° / 50°0.1
65 °
Roth, Sunday, 25 October
Climate normal for this date — 60-year average.
Average high65°
Average low50°
Average precipitation0.1 in
Chance of precipitation32%
Record high80° (1963)
Record low32° (2013)
Mon, 2665° / 49°0.17
65 °
Roth, Monday, 26 October
Climate normal for this date — 60-year average.
Average high65°
Average low49°
Average precipitation0.17 in
Chance of precipitation30%
Record high81° (1963)
Record low33° (1962)
Tue, 2764° / 49°0.19
64 °
Roth, Tuesday, 27 October
Climate normal for this date — 60-year average.
Average high64°
Average low49°
Average precipitation0.19 in
Chance of precipitation28%
Record high81° (1963)
Record low36° (2001)
Wed, 2864° / 48°0.1
64 °
Roth, Wednesday, 28 October
Climate normal for this date — 60-year average.
Average high64°
Average low48°
Average precipitation0.1 in
Chance of precipitation30%
Record high79° (1971)
Record low31° (1976)
Thu, 2963° / 48°0.16
63 °
Roth, Thursday, 29 October
Climate normal for this date — 60-year average.
Average high63°
Average low48°
Average precipitation0.16 in
Chance of precipitation25%
Record high80° (2016)
Record low32° (1976)
Fri, 3064° / 49°0.13
64 °
Roth, Friday, 30 October
Climate normal for this date — 60-year average.
Average high64°
Average low49°
Average precipitation0.13 in
Chance of precipitation23%
Record high79° (2016)
Record low33° (1980)
Sat, 3164° / 50°0.18
64 °
Roth, Saturday, 31 October
Climate normal for this date — 60-year average.
Average high64°
Average low50°
Average precipitation0.18 in
Chance of precipitation32%
Record high79° (2016)
Record low30° (2023)
Sun, 0164° / 49°0.15
64 °
Roth, Sunday, 1 November
Climate normal for this date — 60-year average.
Average high64°
Average low49°
Average precipitation0.15 in
Chance of precipitation33%
Record high81° (2016)
Record low28° (1993)
Mon, 0262° / 47°0.09
62 °
Roth, Monday, 2 November
Climate normal for this date — 60-year average.
Average high62°
Average low47°
Average precipitation0.09 in
Chance of precipitation33%
Record high79° (2016)
Record low32° (1966)
Tue, 0361° / 46°0.08
61 °
Roth, Tuesday, 3 November
Climate normal for this date — 60-year average.
Average high61°
Average low46°
Average precipitation0.08 in
Chance of precipitation30%
Record high77° (2024)
Record low27° (1991)
Wed, 0460° / 46°0.12
60 °
Roth, Wednesday, 4 November
Climate normal for this date — 60-year average.
Average high60°
Average low46°
Average precipitation0.12 in
Chance of precipitation22%
Record high79° (1987)
Record low23° (1991)
Thu, 0560° / 46°0.14
60 °
Roth, Thursday, 5 November
Climate normal for this date — 60-year average.
Average high60°
Average low46°
Average precipitation0.14 in
Chance of precipitation37%
Record high74° (2005)
Record low25° (1991)
Fri, 0659° / 44°0.14
59 °
Roth, Friday, 6 November
Climate normal for this date — 60-year average.
Average high59°
Average low44°
Average precipitation0.14 in
Chance of precipitation32%
Record high74° (1999)
Record low31° (1982)
Sat, 0760° / 45°0.1
60 °
Roth, Saturday, 7 November
Climate normal for this date — 60-year average.
Average high60°
Average low45°
Average precipitation0.1 in
Chance of precipitation23%
Record high78° (1999)
Record low25° (1993)
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 Roth, IL 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 Roth, IL 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.