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As of 00:14 CDT

Weather in Grinnell, IA

68°Current weather

Grinnell, Sunday, 9 August, 00:14

Overcast. Feels like 69°. High 93°, low 68°.

Pressure29.94 inHg
Wind7.4 mph SE
Humidity86%
Visibility6.2 mi
Dew point64°

Two-week outlook for Grinnell, IA: week one averages a high of 82.4° and week two 80°, so week two runs 2.4° cooler than week one. Around 0.2 inches of precipitation are expected over the 14 days, across 3 wet days. The nearest weekend, August 9: 93°, dry.

Week one vs week two

WeekHighLowPrecipitationVs normal
1st (August 9 – August 15)82.4°65.7°0.1 in / 2 d—
2nd (August 16 – August 22)80°59.5°0.1 in / 1 d—

Weekend weather

Sun, August 9
Mostly clear
93°68°
no precip.
Sat, August 15
Light rain
68°59°
0.06 in
Sun, August 16
Light rain
76°60°
no precip.
Sat, August 22
Overcast
90°59°
no precip.
Mon, 1090° / 73°0.01Light rain
90 °Light rain

Grinnell, Monday, 10 August

Light rain. High 90°, low 73°.

Pressure29.85 inHg
Wind5.8 mph SE
Humidity57%
Visibility6.2 mi
Dew point69°
Tue, 1191° / 72°0Partly cloudy
91 °Partly cloudy

Grinnell, Tuesday, 11 August

Partly cloudy. High 91°, low 72°.

Pressure29.77 inHg
Wind7.8 mph SW
Humidity52%
Visibility6.2 mi
Dew point68°
Wed, 1285° / 68°0Overcast
85 °Overcast

Grinnell, Wednesday, 12 August

Overcast. High 85°, low 68°.

Pressure29.85 inHg
Wind14.1 mph NE
Humidity65%
Visibility6.2 mi
Dew point66°
Thu, 1371° / 61°0.06Light rain
71 °Light rain

Grinnell, Thursday, 13 August

Light rain. High 71°, low 61°.

Pressure29.97 inHg
Wind14 mph NE
Humidity67%
Visibility—
Dew point58°
Fri, 1479° / 60°0Overcast
79 °Overcast

Grinnell, Friday, 14 August

Overcast. High 79°, low 60°.

Pressure30.09 inHg
Wind11.2 mph E
Humidity48%
Visibility—
Dew point55°
Sat, 1568° / 59°0.06Light rain
68 °Light rain

Grinnell, Saturday, 15 August

Light rain. High 68°, low 59°.

Pressure30.24 inHg
Wind14.9 mph SE
Humidity95%
Visibility—
Dew point58°
Sun, 1676° / 60°0.01Light rain
76 °Light rain

Grinnell, Sunday, 16 August

Light rain. High 76°, low 60°.

Pressure30.12 inHg
Wind6.6 mph E
Humidity80%
Visibility—
Dew point62°
Mon, 1785° / 65°0.01Light rain
85 °Light rain

Grinnell, Monday, 17 August

Light rain. High 85°, low 65°.

Pressure30.03 inHg
Wind7.9 mph S
Humidity57%
Visibility—
Dew point64°
Tue, 1890° / 68°0Partly cloudy
90 °Partly cloudy

Grinnell, Tuesday, 18 August

Partly cloudy. High 90°, low 68°.

Pressure29.94 inHg
Wind13.3 mph S
Humidity55%
Visibility—
Dew point66°
Wed, 1978° / 60°0.01Light rain
78 °Light rain

Grinnell, Wednesday, 19 August

Light rain. High 78°, low 60°.

Pressure30.03 inHg
Wind14.7 mph N
Humidity86%
Visibility—
Dew point59°
Thu, 2067° / 54°0.04Light rain
67 °Light rain

Grinnell, Thursday, 20 August

Light rain. High 67°, low 54°.

Pressure30.09 inHg
Wind10.5 mph NE
Humidity54%
Visibility—
Dew point48°
Fri, 2174° / 50°0Overcast
74 °Overcast

Grinnell, Friday, 21 August

Overcast. High 74°, low 50°.

Pressure30.03 inHg
Wind11.6 mph SE
Humidity46%
Visibility—
Dew point47°
Sat, 2290° / 59°0Overcast
90 °Overcast

Grinnell, Saturday, 22 August

Overcast. High 90°, low 59°.

Pressure29.83 inHg
Wind13.4 mph NW
Humidity50%
Visibility—
Dew point59°

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, IA, 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.