St. Thomas, Ontario

Hourly

4 PM

83° RealFeel® 90° Hot RealFeel Guide Hot 90° to 100° Caution advised. Possible danger of dehydration, heat stroke, heat exhaustion and heat cramps if outside for extended periods, and especially while doing strenuous activities. LEARN MORE 6% Intermittent clouds

• RealFeel Shade™: 85°
• Heat Index: 87°
• Wind: W 9 mph
• Air Quality: Fair
• Max UV Index: 4.8 (Moderate)
• Wind Gusts: 21 mph
• Humidity: 65%
• Indoor Humidity: 65% (Very Humid)
• Dew Point: 70° F
• AccuLumen Brightness Index™: 7 (Bright)
• Cloud Cover: 59%
• Visibility: 10 mi
• Cloud Ceiling: 33300 ft

5 PM

84° RealFeel® 89° Very Warm RealFeel Guide Very Warm 82° to 89° Older adults, infants, and those with sensitive medical conditions should minimize outdoor activity, especially in the sunshine. LEARN MORE 7% Mostly cloudy

• RealFeel Shade™: 85°
• Heat Index: 88°
• Wind: W 8 mph
• Air Quality: Fair
• Max UV Index: 2.6 (Moderate)
• Wind Gusts: 21 mph
• Humidity: 61%
• Indoor Humidity: 61% (Very Humid)
• Dew Point: 69° F
• AccuLumen Brightness Index™: 5 (Medium)
• Cloud Cover: 77%
• Visibility: 10 mi
• Cloud Ceiling: 30000 ft

6 PM

83° RealFeel® 87° Very Warm RealFeel Guide Very Warm 82° to 89° Older adults, infants, and those with sensitive medical conditions should minimize outdoor activity, especially in the sunshine. LEARN MORE 7% Intermittent clouds

• RealFeel Shade™: 84°
• Heat Index: 86°
• Wind: WSW 8 mph
• Air Quality: Fair
• Max UV Index: 2.2 (Low)
• Wind Gusts: 17 mph
• Humidity: 63%
• Indoor Humidity: 63% (Very Humid)
• Dew Point: 69° F
• AccuLumen Brightness Index™: 7 (Bright)
• Cloud Cover: 54%
• Visibility: 10 mi
• Cloud Ceiling: 30000 ft

7 PM

80° RealFeel® 84° Very Warm RealFeel Guide Very Warm 82° to 89° Older adults, infants, and those with sensitive medical conditions should minimize outdoor activity, especially in the sunshine. LEARN MORE 10% Partly sunny

• RealFeel Shade™: 82°
• Heat Index: 83°
• Wind: SW 7 mph
• Air Quality: Fair
• Max UV Index: 1.3 (Low)
• Wind Gusts: 15 mph
• Humidity: 69%
• Indoor Humidity: 69% (Very Humid)
• Dew Point: 69° F
• AccuLumen Brightness Index™: 8 (Bright)
• Cloud Cover: 31%
• Visibility: 10 mi
• Cloud Ceiling: 30000 ft

8 PM

78° RealFeel® 81° Pleasant RealFeel Guide Pleasant 63° to 81° Most consider this temperature range ideal. LEARN MORE 15% Mostly sunny

• RealFeel Shade™: 81°
• Wind: SSW 7 mph
• Air Quality: Fair
• Max UV Index: 0.4 (Low)
• Wind Gusts: 13 mph
• Humidity: 75%
• Indoor Humidity: 75% (Very Humid)
• Dew Point: 69° F
• AccuLumen Brightness Index™: 3 (Dull)
• Cloud Cover: 11%
• Visibility: 10 mi
• Cloud Ceiling: 30000 ft

9 PM

75° RealFeel® 77° Pleasant RealFeel Guide Pleasant 63° to 81° Most consider this temperature range ideal. LEARN MORE 15% Mostly sunny

• RealFeel Shade™: 77°
• Wind: SSW 6 mph
• Air Quality: Fair
• Max UV Index: 0.0 (Low)
• Wind Gusts: 12 mph
• Humidity: 81%
• Indoor Humidity: 81% (Very Humid)
• Dew Point: 69° F
• AccuLumen Brightness Index™: 0 (Dark)
• Cloud Cover: 11%
• Visibility: 10 mi
• Cloud Ceiling: 30000 ft

10 PM

74° RealFeel® 76° Pleasant RealFeel Guide Pleasant 63° to 81° Most consider this temperature range ideal. LEARN MORE 19% Mostly clear

• Wind: SSW 5 mph
• Air Quality: Fair
• Wind Gusts: 13 mph
• Humidity: 83%
• Indoor Humidity: 83% (Very Humid)
• Dew Point: 69° F
• AccuLumen Brightness Index™: 0 (Dark)
• Cloud Cover: 11%
• Visibility: 10 mi
• Cloud Ceiling: 30000 ft

11 PM

71° RealFeel® 69° Pleasant RealFeel Guide Pleasant 63° to 81° Most consider this temperature range ideal. LEARN MORE 51% Partly cloudy w/ t-storms

• Wind: SSW 5 mph
• Air Quality: Fair
• Wind Gusts: 13 mph
• Humidity: 90%
• Indoor Humidity: 90% (Very Humid)
• Dew Point: 68° F
• AccuLumen Brightness Index™: 0 (Dark)
• Cloud Cover: 11%
• Rain: 0.15 in
• Visibility: 4 mi
• Cloud Ceiling: 30000 ft