0in

Rain Today

Rain Last Hour
0in

Recorded at Ankeny Regional Airport Updated 15 mins ago (11.1 miles away)

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Real-Time Extremes

Hottest 96.7 °F
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Coldest 26.5 °F
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Windiest 103.6mph
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Wettest (Last Hour) 0.6in
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Most Humid 100%
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Least Humid 10%
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Highest Pressure 1036.9 hPa
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Lowest Pressure 990.5 hPa
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Grimes Rainfall Forecast

Today 18 Sep
60%
Fri 19 Sep
70%
Sat 20 Sep
25%
Sun 21 Sep
40%
Mon 22 Sep
20%
Tue 23 Sep
40%
Wed 24 Sep
20%

Grimes Rainfall Statistics

September Rainfall

Ankeny Regional Airport (10.6 miles)

Total Rainfall 2025
23.9in
Daily Average 2025
0.1in
Wettest Day 19 May, 2025
2.1in
Wet Days 2025
62/261 (24%)
Total Rainfall August
1.7in
Daily Average August
0.1in
Wettest Day 7 August, 2025
0.6in
Wet Days August
9/31 (29%)
Total Rainfall September
0.2in
Daily Average September
0.02in
Wettest Day 3 September, 2025
0.2in
Wet Days September
2/18 (11%)

Climate (2010–Present)

Ankeny Regional Airport (10.6 miles)

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Annual Average 2020–2024
17.2in
Monthly Average 2020–2025
1.7in
Daily Average 2020–2025
0.1in
Wettest Day 21 May, 2024
2.4in

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