• Tonight

    May 18

    Lo 9°

    Mostly cloudy with showers

    Dust & Dander Weather
    • Grass
      Pollen
      2 - Low
    • Ragweed
      Pollen
      0 - Low
    • Tree
      Pollen
      0 - Low
  • Sun

    May 19

    18°Lo 9°

    Mainly cloudy and breezy

    Extreme indoor dust & dander levels
    • Grass
      Pollen
      2 - Low
    • Ragweed
      Pollen
      0 - Low
    • Tree
      Pollen
      0 - Low
    more
  • Mon

    May 20

    17°Lo 7°

    Mostly sunny and breezy

    Extreme indoor dust & dander levels
    • Grass
      Pollen
      2 - Low
    • Ragweed
      Pollen
      0 - Low
    • Tree
      Pollen
      0 - Low
    more
  • Tue

    May 21

    19°Lo 8°

    Times of clouds and sun

    Extreme indoor dust & dander levels
    • Precip
      0%
    • Wind
      Speed
      11 k/h
    • Cloud
      Cover
      46%
    more
  • Wed

    May 22

    21°Lo 9°

    Mostly cloudy

    Extreme indoor dust & dander levels
    • Precip
      25%
    • Wind
      Speed
      13 k/h
    • Cloud
      Cover
      76%
    more
Next Previous
< Previous 8 hours Next 8 hours >
  Sat
8pm
9pm 10pm 11pm Sun
12am
1am 2am 3am
  8pm 9pm 10pm 11pm 12am 1am 2am 3am
Forecast
Cloudy
Showers
Showers
Cloudy
Cloudy
Showers
Cloudy
Cloudy
Temp (°C) 14° 13° 12° 12° 11° 11° 11° 11°
RealFeel® 11° 10°
Humidity 79% 84% 89% 92% 93% 93% 93% 93%
   
  8pm 9pm 10pm 11pm 12am 1am 2am 3am
Rain
 
49%
 
63%
 
63%
 
49%
 
49%
 
60%
 
40%
 
34%
Snow
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
Ice
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
 
0%
   
  8pm 9pm 10pm 11pm 12am 1am 2am 3am
Wind (km/h) 14 E 13 E 13 ENE 13 ENE 13 ENE 14 NE 14 NE 16 NE
UV Index 0 0 0 0 0 0 0 0
Cloud Cover 93% 91% 90% 90% 90% 90% 90% 90%
Dew Point 10° 11° 10° 10° 10° 10° 10°
Middle Grid line 15 C Middle Grid line 10 C

Temperature History - May 18

more Historical Weather Data >
  Today Normal Record 5/18/2012
High 14° 19° N/A 16°
Low N/A

Sunrise/Sunset

Sunrise / Sunset Illustration

Rises at 5:49 AM with 15:36 of sunlight, then sets at 9:25 PM

Moonrise/Moonset

Astronomy >
Moonrise / Moonset Illustration

Rises at 1:50 PM with 12:59 of moolight, then sets at 2:49 AM

Top Story

Rapid City Weather Report

The Summer Outlook for Canada

May 18, 2013; 9:44 AM ET

The Accuweather.com summer forecast for Canada. more >