• Today

    Jul 31

    30°Lo 18°

    Partly sunny

    Excellent for travel
    • Rain
      1 mm
    • Wind
      Speed
      17 k/h
    • T-storms
      1%
    more
  • Sat

    Aug 1

    26°Lo 17°

    Partly sunny with a t-storm

    Excellent for travel
    • Rain
      5 mm
    • Wind
      Speed
      22 k/h
    • T-storms
      40%
  • Sun

    Aug 2

    28°Lo 20°

    A t-storm in the afternoon

    Excellent for travel
    • Rain
      23 mm
    • Wind
      Speed
      20 k/h
    • T-storms
      60%
    more
  • Mon

    Aug 3

    26°Lo 17°

    A shower and t-storm around

    Excellent for travel
    • Rain
      9 mm
    • Wind
      Speed
      30 k/h
    • T-storms
      60%
    more
  • Tue

    Aug 4

    25°Lo 15°

    Partly sunny, breezy and nice

    Excellent for travel
    • Rain
      0 mm
    • Wind
      Speed
      24 k/h
    • T-storms
      0%
    more
Next Previous
Hi 26° RealFeel® 27° Precipitation 55%

Day

N

E

S

W

  • W 22 km/h
  • Gusts: 35 km/h

Partly sunny and breezy with a shower or thunderstorm around

  • Max UV Index: 7 (High)
  • Thunderstorms: 40%
  • Precipitation: 4 mm
  • Rain: 4 mm
  • Snow: 0 CM
  • Ice: 0 mm
  • Hours of Precipitation: 1.5 hrs
  • Hours of Rain: 1.5 hrs
Lo 17° RealFeel® 16° Precipitation 40%

Night

N

E

S

W

  • WSW 13 km/h
  • Gusts: 20 km/h

A shower or thunderstorm in spots early in the evening; otherwise, partly cloudy

  • Max UV Index: N/A
  • Thunderstorms: 40%
  • Precipitation: 1 mm
  • Rain: 1 mm
  • Snow: 0 CM
  • Ice: 0 mm
  • Hours of Precipitation: 0.5 hrs
  • Hours of Rain: 0.5 hrs

Temperature History - Aug 1

more Historical Weather Data >
  Today Normal Record 8/1/2014
High 26° 27° N/A 28°
Low 17° 16° N/A 18°

Sunrise/Sunset

Sunrise / Sunset Illustration

Rises at 6:07 AM with 14:32 of sunlight, then sets at 8:39 PM

Moonrise/Moonset

Astronomy >
Moonrise / Moonset Illustration

Rises at 9:19 PM with 11:28 of moolight, then sets at 8:47 AM

St. Catharines Weather Report

Weekly Clues through the End of August

July 30, 2015; 9:54 PM ET

Some forecast model clues through the end of August and an update on global sea surface temperatures. more >