As of 13:58 CDT

Weather in Gilmer, IL

82°Current weather

Gilmer, Saturday, 8 August, 13:58

Clear. Feels like 83°. High 83°, low 68°.

Pressure30.00 inHg
Wind9 mph N
Humidity54%
Visibility6.2 mi
Dew point63°

Monthly outlook for Gilmer, IL: average high 78.1°, average low 62.4°. That is 0.1° above the climate normal for August. Precipitation is expected on 6 days (about 2.5 inches), against a normal of 6 days and 1.8 inches. The warmest day looks like 12 August (84.3°), the coolest 23 August (52.2°).

78.1°/62.4°
Average high / low
+0.1°
Above normal
6 / 6
Wet days / normal
2.5 in
Precipitation this month

Ten-day blocks vs climate normal

PeriodForecast highNormalDifference
8 August – 17 August79.5°78.1°+0.8°
18 August – 27 August75.6°77.8°-1.2°
28 August – 6 Septemberat normal76.4°

August records over 66 years

98.6°24 August 2023All-time high
52.5°22 August 2024All-time low

Climate normals and records are computed from the nearest reference point — Highwood (12 mi).

Sun, 0983° / 65°1.13Heavy rain
83 °Heavy rain

Gilmer, Sunday, 9 August

Heavy rain. High 83°, low 65°.

Pressure29.88 inHg
Wind9.1 mph SE
Humidity94%
Visibility6.2 mi
Dew point63°
Mon, 1084° / 71°0.25Heavy rain
84 °Heavy rain

Gilmer, Monday, 10 August

Heavy rain. High 84°, low 71°.

Pressure29.88 inHg
Wind5.5 mph S
Humidity87%
Visibility6.2 mi
Dew point71°
Tue, 1183° / 69°0.57Heavy rain
83 °Heavy rain

Gilmer, Tuesday, 11 August

Heavy rain. High 83°, low 69°.

Pressure29.80 inHg
Wind4.9 mph W
Humidity94%
Visibility0.9 mi
Dew point73°
Wed, 1284° / 64°0Partly cloudy
84 °Partly cloudy

Gilmer, Wednesday, 12 August

Partly cloudy. High 84°, low 64°.

Pressure29.88 inHg
Wind3.2 mph W
Humidity66%
Visibility6.2 mi
Dew point65°
Thu, 1369° / 59°0.08Light rain
69 °Light rain

Gilmer, Thursday, 13 August

Light rain. High 69°, low 59°.

Pressure29.97 inHg
Wind10.6 mph NE
Humidity74%
Visibility
Dew point60°
Fri, 1473° / 56°0Clear
73 °Clear

Gilmer, Friday, 14 August

Clear. High 73°, low 56°.

Pressure30.18 inHg
Wind7.4 mph N
Humidity49%
Visibility
Dew point50°
Sat, 1576° / 56°0Overcast
76 °Overcast

Gilmer, Saturday, 15 August

Overcast. High 76°, low 56°.

Pressure30.30 inHg
Wind6.2 mph SW
Humidity47%
Visibility
Dew point51°
Sun, 1677° / 59°0Partly cloudy
77 °Partly cloudy

Gilmer, Sunday, 16 August

Partly cloudy. High 77°, low 59°.

Pressure30.18 inHg
Wind11 mph SW
Humidity52%
Visibility
Dew point55°
Mon, 1782° / 67°0.02Light rain
82 °Light rain

Gilmer, Monday, 17 August

Light rain. High 82°, low 67°.

Pressure30.00 inHg
Wind7.3 mph S
Humidity87%
Visibility
Dew point66°
Tue, 1881° / 66°0Partly cloudy
81 °Partly cloudy

Gilmer, Tuesday, 18 August

Partly cloudy. High 81°, low 66°.

Pressure30.03 inHg
Wind8 mph NE
Humidity60%
Visibility
Dew point64°
Wed, 1982° / 65°0.32Rain
82 °Rain

Gilmer, Wednesday, 19 August

Rain. High 82°, low 65°.

Pressure29.91 inHg
Wind9.4 mph SW
Humidity62%
Visibility
Dew point66°
Thu, 2076° / 64°0Overcast
76 °Overcast

Gilmer, Thursday, 20 August

Overcast. High 76°, low 64°.

Pressure29.91 inHg
Wind8.6 mph NE
Humidity71%
Visibility
Dew point64°
Fri, 2178° / 61°0Overcast
78 °Overcast

Gilmer, Friday, 21 August

Overcast. High 78°, low 61°.

Pressure29.97 inHg
Wind7.3 mph NE
Humidity60%
Visibility
Dew point60°
Sat, 2271° / 57°0.07Light rain
71 °Light rain

Gilmer, Saturday, 22 August

Light rain. High 71°, low 57°.

Pressure30.00 inHg
Wind16.2 mph NE
Humidity86%
Visibility
Dew point59°
Sun, 2366° / 52°0Clear
66 °Clear

Gilmer, Sunday, 23 August

Clear. High 66°, low 52°.

Pressure30.24 inHg
Wind11.3 mph NE
Humidity50%
Visibility
Dew point45°
From day 17 onward the outlook is built from 60-year climate statistics
Mon, 2478° / 68°0.11Climate normal
78 °Climate normal

Gilmer, Monday, 24 August

Climate normal for this date — 60-year average.

Average high78°
Average low68°
Average precipitation0.11 in
Chance of precipitation25%
Record high99° (2023)
Record low58° (2025)
Tue, 2578° / 68°0.07Climate normal
78 °Climate normal

Gilmer, Tuesday, 25 August

Climate normal for this date — 60-year average.

Average high78°
Average low68°
Average precipitation0.07 in
Chance of precipitation25%
Record high91° (2024)
Record low54° (2017)
Wed, 2679° / 68°0.14Climate normal
79 °Climate normal

Gilmer, Wednesday, 26 August

Climate normal for this date — 60-year average.

Average high79°
Average low68°
Average precipitation0.14 in
Chance of precipitation35%
Record high94° (2024)
Record low54° (2025)
Thu, 2778° / 69°0.1Climate normal
78 °Climate normal

Gilmer, Thursday, 27 August

Climate normal for this date — 60-year average.

Average high78°
Average low69°
Average precipitation0.1 in
Chance of precipitation32%
Record high96° (2024)
Record low55° (2025)
Fri, 2878° / 68°0.12Climate normal
78 °Climate normal

Gilmer, Friday, 28 August

Climate normal for this date — 60-year average.

Average high78°
Average low68°
Average precipitation0.12 in
Chance of precipitation35%
Record high92° (2021)
Record low54° (1986)
Sat, 2978° / 68°0.13Climate normal
78 °Climate normal

Gilmer, Saturday, 29 August

Climate normal for this date — 60-year average.

Average high78°
Average low68°
Average precipitation0.13 in
Chance of precipitation28%
Record high89° (1984)
Record low54° (1965)
Sun, 3077° / 67°0.09Climate normal
77 °Climate normal

Gilmer, Sunday, 30 August

Climate normal for this date — 60-year average.

Average high77°
Average low67°
Average precipitation0.09 in
Chance of precipitation27%
Record high91° (2013)
Record low57° (2023)
Mon, 3176° / 67°0.06Climate normal
76 °Climate normal

Gilmer, Monday, 31 August

Climate normal for this date — 60-year average.

Average high76°
Average low67°
Average precipitation0.06 in
Chance of precipitation20%
Record high89° (2012)
Record low56° (2025)
Tue, 0176° / 67°0.1Climate normal
76 °Climate normal

Gilmer, Tuesday, 1 September

Climate normal for this date — 60-year average.

Average high76°
Average low67°
Average precipitation0.1 in
Chance of precipitation28%
Record high89° (1960)
Record low57° (2017)
Wed, 0277° / 67°0.04Climate normal
77 °Climate normal

Gilmer, Wednesday, 2 September

Climate normal for this date — 60-year average.

Average high77°
Average low67°
Average precipitation0.04 in
Chance of precipitation25%
Record high87° (2023)
Record low50° (2017)
Thu, 0376° / 66°0.09Climate normal
76 °Climate normal

Gilmer, Thursday, 3 September

Climate normal for this date — 60-year average.

Average high76°
Average low66°
Average precipitation0.09 in
Chance of precipitation27%
Record high92° (2023)
Record low54° (1974)
Fri, 0475° / 66°0.08Climate normal
75 °Climate normal

Gilmer, Friday, 4 September

Climate normal for this date — 60-year average.

Average high75°
Average low66°
Average precipitation0.08 in
Chance of precipitation30%
Record high91° (2023)
Record low49° (2025)
Sat, 0575° / 65°0.08Climate normal
75 °Climate normal

Gilmer, Saturday, 5 September

Climate normal for this date — 60-year average.

Average high75°
Average low65°
Average precipitation0.08 in
Chance of precipitation25%
Record high89° (2023)
Record low55° (2017)
Sun, 0675° / 65°0.09Climate normal
75 °Climate normal

Gilmer, Sunday, 6 September

Climate normal for this date — 60-year average.

Average high75°
Average low65°
Average precipitation0.09 in
Chance of precipitation33%
Record high90° (1990)
Record low49° (2025)

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 Gilmer, 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 Gilmer, 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.