Live Weather & Forecast
Weather in Grimes
Iowa, United States · Real-time conditions & 3-day outlook
16°C
Feels like 16°C
61°F / Feels 61°F
Overcast
Grimes, Iowa
🌞 Daytime
Updated: 2026-04-15 11:15
Humidity
100%
Wind
20.9 km/h SW
Wind Gust
24.1 km/h
Pressure
1007 mb
Visibility
16 km
UV Index
3.5
(Moderate)
Precipitation
0 mm
Cloud Cover
100%
Dew Point
17.5°C
Wind Degree
218°
Air Quality Index
US EPA: Good
UK DEFRA: Low (1)
CO
157.9 μg/m³
NO₂
2.9 μg/m³
O₃
80 μg/m³
SO₂
1.3 μg/m³
PM 2.5
4.4 μg/m³
PM 10
5.3 μg/m³
Today's Hourly Forecast
24-hour breakdown for Grimes, Iowa
12 AM
19°
Patchy rain nearby
1 AM
18°
Patchy rain nearby
2 AM
17°
Moderate rain at times
3 AM
17°
Patchy rain nearby
4 AM
16°
Patchy rain nearby
5 AM
16°
Patchy rain nearby
6 AM
15°
Mist
7 AM
15°
Mist
8 AM
16°
Mist
9 AM
17°
Mist
10 AM
18°
Cloudy
11 AM
16°
Overcast
12 PM
19°
Patchy rain nearby
1 PM
19°
Light drizzle
2 PM
21°
Patchy rain nearby
3 PM
23°
Partly Cloudy
4 PM
24°
Sunny
5 PM
24°
Sunny
6 PM
21°
Partly Cloudy
7 PM
18°
Cloudy
8 PM
17°
Partly Cloudy
9 PM
16°
Clear
10 PM
15°
Cloudy
11 PM
14°
Cloudy
3-Day Forecast
Daily overview for Grimes, Iowa
Today
Moderate rain
26°
/
14°
🌧️ 84% chance of rain
💧 Avg. humidity: 90%
💨 Max wind: 22.7 km/h
🌧️ Total precip: 14.43 mm
☀️ UV Index: 1.1
🌅 Sunrise: 06:34 AM
🌇 Sunset: 07:56 PM
🌙 Waning Crescent
🌑 Moon: 8% lit
Thu, Apr 16
Partly Cloudy
28°
/
9°
🌧️ 0% chance of rain
💧 Avg. humidity: 78%
💨 Max wind: 23.8 km/h
🌧️ Total precip: 0 mm
☀️ UV Index: 1.7
🌅 Sunrise: 06:33 AM
🌇 Sunset: 07:57 PM
🌙 Waning Crescent
🌑 Moon: 3% lit
Fri, Apr 17
Moderate rain
23°
/
5°
🌧️ 89% chance of rain
💧 Avg. humidity: 88%
💨 Max wind: 38.5 km/h
🌧️ Total precip: 13.27 mm
☀️ UV Index: 1.6
🌅 Sunrise: 06:31 AM
🌇 Sunset: 07:58 PM
🌙 New Moon
🌑 Moon: 0% lit
Best Time to Visit Grimes
Plan your trip to Grimes, United States around the most favorable weather conditions.
Peak Season
June – September
Warm, dry summers — ideal for outdoor activities.
Shoulder Season
April – May, October
Fewer crowds, moderate prices, mild weather.
Off Season
November – March
Cooler temperatures; some regions may experience rain or snow.
Frequently Asked Questions
What is the current weather in Grimes?
Current conditions in Grimes: Overcast, temperature 16°C, humidity 100%.
What is the best time to visit Grimes?
The best time to visit Grimes is typically June – September. Warm, dry summers — ideal for outdoor activities.
What is the climate like in Grimes?
Grimes is located at approximately 41.7° latitude. It has a temperate climate with warm summers and cold winters.
Does it rain a lot in Grimes?
The wettest period in Grimes is typically during November – March. Cooler temperatures; some regions may experience rain or snow.
What should I pack for a trip to Grimes?
For visits to Grimes during June – September: light clothing and sun protection. For November – March: layers and a waterproof jacket are recommended.
What country is Grimes in?
Grimes is located in United States, in the state of Iowa.
What are the public holidays in Grimes in 2026?
View the 2026 public holidays for Grimes on our Holidays page.
What are the GPS coordinates used for the weather forecast in Grimes?
The weather forecast for Grimes uses coordinates 41.6883, -93.7911.