Now

30°

8 mph

16:00

30°

8 mph

17:00

28°

8 mph

18:00

28°

8 mph

19:00

26°

15%

10 mph

20:00

24°

17%

10 mph

21:00

23°

18%

9 mph

22:00

21°

19%

9 mph

23:00

21°

22%

11 mph

00:00

22°

16%

11 mph

01:00

22°

15%

13 mph

02:00

22°

12%

11 mph

03:00

21°

15%

9 mph

04:00

20°

32%

6 mph

05:00

20°

32%

3 mph

06:00

20°

27%

4 mph

07:00

19°

33%

10 mph

08:00

20°

22%

10 mph

09:00

20°

22%

10 mph

10:00

21°

17%

17 mph

11:00

27°

10%

19 mph

12:00

31°

10%

21 mph

13:00

32°

20 mph

14:00

34°

10%

21 mph

10-day forecast

Updated 3:28 PM

Fri · Today · 28 Aug Sunny

30° 14° 12%

Sat · Tomorrow · 29 Aug Mostly cloudy

35° 19° 0.04 in

Sunday · 30 Aug Mostly cloudy

43° 22° 0.01 in

Monday · 31 Aug Mostly cloudy

40° 25° 17%

Tuesday · 1 Sep Mostly cloudy

41° 22° 0.01 in

Wednesday · 2 Sep Sunny

37° 24° 1%

Thursday · 3 Sep Sunny

41° 24° 4%

Friday · 4 Sep Showers

39° 24° 0.02 in

Saturday · 5 Sep Mostly cloudy

39° 26° 0.10 in

Sunday · 6 Sep Sunny

33° 20° 0.08 in

Details & indices

Wind

8 mph SW

Gusts 8 mph

Humidity

48%

Dew point 18°

Pressure

30.03 inHg

Rising

UV index

8 — Very high

High today

Air Quality

Good

AQI 50 · US EPA

Allergy

None detected

—

Visibility

6 mi

Clear view

Allergy — Grimes

🌿 Conditions right now

View all →

Birch

None

Grass

None

Oak

None

Alder

None

Hazel

None

Mugwort

None

Ragweed

None

Sun & moon

Sunrise6:37 AM

Sunset7:55 PM

Length of day13h 18m

Moonrise8:07 PM

Moonset7:02 AM

Moon phase🌕 Full Moon · 100%

Next full moonSep 26 Harvest Moon

Latitude41.6883°N

Longitude-93.7911°E

Water temps nearby

View all →

No beaches within 50 miles

🌤️No rain expected in the next 90 minutes

Now+30+60+90 min

Minute-by-minute precip · HRRR nowcast

Daily planner

computed from today's forecast

Laundry day

Great

Line-drying weather

Grilling

Great

Fire up the grill

Running

Fair

Lace up outside

Patio

Great

Dinner outdoors

Nearby places in {{REGION}}

Des Moines

Sunny

32°

Data sources · Friday, August 28

Where the Grimes forecast comes from

This page blends NOAA/NWS model guidance with global ensembles for the 10-day outlook, air quality and alerts. Data refreshes every hour, current conditions every 15 minutes. Coordinates: 41.6883°N, -93.7911°.

NBM + global weather models

Updated: 3:28 PM

Weather in Grimes

Grimes's outlook: warmest day near 43° (Sunday), coldest night about 14° (Friday). Roughly 0.28 in of rain falls over the period, with Saturday the most likely wet day (59%). Wind is the one to watch: gusts to 40 mph around Wednesday. No watches or warnings are active for the area right now. Right now Grimes is running about 64° warmer than Sioux City. Longer view: continental plains — big swings and a spring severe-storm season.

Grimes, IA · Elev 955 ft · 41.69°N, 93.79°W · Iowa · Forecast computed for these exact coordinates

Grimes, IA Weather (50111)

Weather map — Grimes

Today · Fri 8/28

Tonight · Fri 8/28

Tomorrow · Sat 8/29

7-day trend

10-day forecast

Details & indices

🌿 Conditions right now

Sun & moon

Water temps nearby

Daily planner