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As of 01:57 CDT

Weather in Grinnell, IL

68°Current weather

Grinnell, Sunday, 9 August, 01:57

Clear. Feels like 69°. High 90°, low 68°.

Pressure30.06 inHg
Wind3.7 mph SW
Humidity96%
Visibility6.2 mi
Dew point67°

Two-week outlook for Grinnell, IL: week one averages a high of 92.7° and week two 101.2°, so week two runs 8.5° warmer than week one. Around 0.7 inches of precipitation are expected over the 14 days, across 3 wet days. The nearest weekend, August 9: 90°, dry.

Week one vs week two

WeekHighLowPrecipitationVs normal
1st (August 9 – August 15)92.7°71.5°0.6 in / 3 d—
2nd (August 16 – August 22)101.2°75.4°0.1 in / 0 d—

Weekend weather

Sun, August 9
Clear
90°68°
no precip.
Sat, August 15
Light rain
91°68°
0.08 in
Sun, August 16
Light rain
104°72°
no precip.
Sat, August 22
Clear
108°78°
no precip.
Mon, 1095° / 73°0Clear
95 °Clear

Grinnell, Monday, 10 August

Clear. High 95°, low 73°.

Pressure30.03 inHg
Wind11.8 mph SW
Humidity51%
Visibility6.2 mi
Dew point71°
Tue, 1198° / 75°0Partly cloudy
98 °Partly cloudy

Grinnell, Tuesday, 11 August

Partly cloudy. High 98°, low 75°.

Pressure29.94 inHg
Wind12.9 mph SW
Humidity45%
Visibility6.2 mi
Dew point69°
Wed, 1298° / 73°0.47Rain
98 °Rain

Grinnell, Wednesday, 12 August

Rain. High 98°, low 73°.

Pressure29.85 inHg
Wind12.3 mph SW
Humidity47%
Visibility6.2 mi
Dew point70°
Thu, 1389° / 71°0.07Light rain
89 °Light rain

Grinnell, Thursday, 13 August

Light rain. High 89°, low 71°.

Pressure29.91 inHg
Wind8.7 mph E
Humidity60%
Visibility—
Dew point71°
Fri, 1487° / 72°0.02Light rain
87 °Light rain

Grinnell, Friday, 14 August

Light rain. High 87°, low 72°.

Pressure30.00 inHg
Wind11.2 mph E
Humidity64%
Visibility—
Dew point71°
Sat, 1591° / 68°0.08Light rain
91 °Light rain

Grinnell, Saturday, 15 August

Light rain. High 91°, low 68°.

Pressure30.12 inHg
Wind10.5 mph E
Humidity61%
Visibility—
Dew point70°
Sun, 16104° / 72°0Light rain
104 °Light rain

Grinnell, Sunday, 16 August

Light rain. High 104°, low 72°.

Pressure30.00 inHg
Wind8.2 mph W
Humidity44%
Visibility—
Dew point67°
Mon, 1795° / 73°0.03Light rain
95 °Light rain

Grinnell, Monday, 17 August

Light rain. High 95°, low 73°.

Pressure30.03 inHg
Wind8.3 mph E
Humidity55%
Visibility—
Dew point70°
Tue, 1894° / 71°0.03Light rain
94 °Light rain

Grinnell, Tuesday, 18 August

Light rain. High 94°, low 71°.

Pressure29.97 inHg
Wind8.4 mph E
Humidity51%
Visibility—
Dew point69°
Wed, 1998° / 75°0Partly cloudy
98 °Partly cloudy

Grinnell, Wednesday, 19 August

Partly cloudy. High 98°, low 75°.

Pressure29.94 inHg
Wind9 mph SE
Humidity49%
Visibility—
Dew point71°
Thu, 20111° / 80°0Partly cloudy
111 °Partly cloudy

Grinnell, Thursday, 20 August

Partly cloudy. High 111°, low 80°.

Pressure29.88 inHg
Wind10.9 mph S
Humidity26%
Visibility—
Dew point60°
Fri, 2199° / 79°0Mostly clear
99 °Mostly clear

Grinnell, Friday, 21 August

Mostly clear. High 99°, low 79°.

Pressure29.88 inHg
Wind11.1 mph SW
Humidity33%
Visibility—
Dew point62°
Sat, 22108° / 78°0Clear
108 °Clear

Grinnell, Saturday, 22 August

Clear. High 108°, low 78°.

Pressure29.88 inHg
Wind7.2 mph SE
Humidity29%
Visibility—
Dew point62°

About this forecast

Can I plan a trip on a 2-week forecast?

Week one is solid for planning — accuracy is high. Week two shows the trend: go by the averages and the comparison with normal, and check the details closer to the date.

What does the "Vs normal" column mean?

It is the gap between the forecast and the climate normal for those same dates in Grinnell, IL, computed over 60 years. A positive value means the week runs warmer than usual.

Why are weekends shown separately?

Saturday and Sunday plans are what people check most, so we give them their own cards with temperature and precipitation.