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Grantham, Pennsylvania
7 Day & Night Forecast & Conditions



Current Conditions Maps Radar 2 Radar 1 Satellite Alerts Climate Index
Current Grantham, Pennsylvania Weather: Cloudy with Haze
Cloudy with Haze
65°F
18.3°C
 Observed at: Harrisburg, PA Elevation: 348 ft | 106 m
Last Updated: March 23, 4:56 PM Timezone: GMT -4
 
Sky Conditions: Cloudy with Haze Temperature: 65°F | 18.3°C
Pressure: 29.82 in | 1010 mb Dewpoint: 56°F | 13.3°C
Humidity: 73% Wind: NW 5 mph | NW 7 kph
Feels Like: 65°F | 18.3°C Visibility: 4.0 mi | 6.4 km
Today's QPF: 0.13 in | 3.2 mm Lat/Long: 40.15 | -77
Sunrise: 7:05 AM Sunset: 7:22 PM

7 Day Graphical Forecast
Tonight
Today's Weather Forecast For Grantham, Pennsylvania is Isolated Storms
Isolated Storms
 45 °F
 7 °C
82% Chance
Precipitation
Friday
Friday's Weather Forecast For Grantham, Pennsylvania is Isolated Thunderstorms
Isolated Thunderstorms
49 |41 °F
10 |5 °C
77% Chance
Precipitation
Saturday
Saturday's Weather Forecast For Grantham, Pennsylvania is Rain
Rain
51 |44 °F
11 |7 °C
100% Chance
Precipitation
Sunday
Sunday's Weather Forecast For Grantham, Pennsylvania is Mostly Sunny
Mostly Sunny
60 |36 °F
16 |2 °C
0% Chance
Precipitation
Monday
Monday's Weather Forecast For Grantham, Pennsylvania is Partly Cloudy
Partly Cloudy
55 |36 °F
13 |2 °C
0% Chance
Precipitation
Tuesday
Tuesday's Weather Forecast For Grantham, Pennsylvania is Partly Cloudy
Partly Cloudy
51 |34 °F
11 |1 °C
0% Chance
Precipitation
Wednesday
Wednesday's Weather Forecast For Grantham, Pennsylvania is Partly Cloudy
Partly Cloudy
50 |36 °F
10 |2 °C
0% Chance
Precipitation

7 Hour Graphical Forecast Valid: 7:00 PM 3/23/2023
6 PM
6PMweather forecast forGrantham, Pennsylvania is Isolated Showers
Isolated Showers
65 °F
17% Chance
Precipitation
 7 PM
7PMweather forecast forGrantham, Pennsylvania is Rain Showers
Rain Showers
64 °F
17% Chance
Precipitation
 8 PM
8PMweather forecast forGrantham, Pennsylvania is Isolated Storms
Isolated Storms
64 °F
56% Chance
Precipitation
 9 PM
9PMweather forecast forGrantham, Pennsylvania is Isolated Storms
Isolated Storms
62 °F
60% Chance
Precipitation
 10 PM
10PMweather forecast forGrantham, Pennsylvania is Isolated Storms
Isolated Storms
61 °F
65% Chance
Precipitation
 11 PM
11PMweather forecast forGrantham, Pennsylvania is Rain
Rain
60 °F
56% Chance
Precipitation
 12 AM
12AMweather forecast forGrantham, Pennsylvania is Scattered Showers
Scattered Showers
58 °F
47% Chance
Precipitation

7 Day Textual Forecast - with QPF, Max Wind, Humidity, Snowfall, & Ice Accumulation Forecasts
7 Day & Night Weather Forecast for Grantham, PA - ( Fahrenheit & Celsius )
Valid: 7:00 PM 3/23/2023
Tonight
Isolated Storms Mostly Cloudy with Light Rain and Isolated Storms with a low around 45°F [7°C]. West southwest wind to around 10 mph [16 kph], with wind gusts to near 18 mph [29 kph]. The dewpoint will be near 57°F [14°C] with a humidity of 78% and a barometric pressure around and a barometric pressure around 29.87 in [1012 mb]. Chance of precipitation is 82% with a qpf of 0.13 in [3.2 mm].
Friday
Isolated Thunderstorms Cloudy with Light Rain and Isolated Thunderstorms with a high near 49°F [10°C]. North wind to around 8 mph [13 kph], with wind gusts to near 11 mph [18 kph]. The dewpoint will be near 39°F [4°C] with a humidity of 76% and a barometric pressure around and a barometric pressure around 30.00 in [1016 mb]. The UVI forecast is 3. Chance of precipitation is 77% with a qpf of 0.11 in [2.7 mm].
Friday Night
Light Rain Cloudy with Light Rain with a low around 41°F [5°C]. "NNE" wind to around 3 mph [5 kph], with wind gusts to near 20 mph [32 kph]. The dewpoint will be near 36°F [3°C] with a humidity of 63% and a barometric pressure around and a barometric pressure around 30.03 in [1017 mb]. Chance of precipitation is 87% with a qpf of 0.16 in [3.9 mm].
Saturday
Rain Mostly Cloudy with Rain with a high near 51°F [11°C]. East southeast wind to around 13 mph [21 kph], with wind gusts to near 26 mph [41 kph]. The dewpoint will be near 38°F [9°C] with a humidity of 88% and a barometric pressure around and a barometric pressure around 29.81 in [1010 mb]. The UVI forecast is 1. Chance of precipitation is 100% with a qpf of 0.28 in [7.1 mm].
Saturday Night
Isolated Storms Partly Cloudy with Light Rain and Isolated Storms with a low around 44°F [7°C]. Southeast wind to around 8 mph [13 kph], with wind gusts to near 21 mph [34 kph]. The dewpoint will be near 48°F [9°C] with a humidity of 87% and a barometric pressure around and a barometric pressure around 29.73 in [1007 mb]. Chance of precipitation is 69% with a qpf of 0.05 in [1.3 mm].
Sunday
Mostly Sunny Mostly Sunny with a high near 60°F [16°C]. West southwest wind to around 14 mph [22 kph], with wind gusts to near 29 mph [47 kph]. The dewpoint will be near 37°F [3°C] with a humidity of 72% and a barometric pressure around and a barometric pressure around 29.93 in [1014 mb]. The UVI forecast is 5. Chance of precipitation is 0% with a qpf of 0.00 in [0.00 mm].
Sunday Night
Mostly Clear Mostly Clear with a low around 36°F [2°C]. West wind to around 10 mph [16 kph], with wind gusts to near 15 mph [25 kph]. The dewpoint will be near 30°F [-1°C] with a humidity of 42% and a barometric pressure around and a barometric pressure around 29.97 in [1015 mb]. Chance of precipitation is 0% with a qpf of 0.00 in [0.00 mm].
Monday
Partly Cloudy Partly Cloudy with a high near 55°F [13°C]. North northwest wind to around 4 mph [6 kph], with wind gusts to near 11 mph [18 kph]. The dewpoint will be near 29°F [-1°C] with a humidity of 72% and a barometric pressure around and a barometric pressure around 29.98 in [1015 mb]. The UVI forecast is 4. Chance of precipitation is 0% with a qpf of 0.00 in [0.00 mm].
Monday Night
Partly Cloudy Partly Cloudy with a low around 36°F [2°C]. East wind to around 5 mph [9 kph], with wind gusts to near 12 mph [20 kph]. The dewpoint will be near 30°F [-1°C] with a humidity of 47% and a barometric pressure around and a barometric pressure around 30.24 in [1024 mb]. Chance of precipitation is 0% with a qpf of 0.00 in [0.00 mm].
Tuesday
Partly Cloudy Partly Cloudy with a high near 51°F [11°C]. East wind to around 7 mph [11 kph], with wind gusts to near 26 mph [42 kph]. The dewpoint will be near 31°F [-1°C] with a humidity of 77% and a barometric pressure around and a barometric pressure around 30.31 in [1026 mb]. The UVI forecast is 0. Chance of precipitation is 0% with a qpf of 0.00 in [0.00 mm].
Tuesday Night
Partly Cloudy Partly Cloudy with a low around 34°F [1°C]. West wind to around 12 mph [20 kph], with wind gusts to near 26 mph [42 kph]. The dewpoint will be near 30°F [-1°C] with a humidity of 53% and a barometric pressure around and a barometric pressure around 30.42 in [1030 mb]. Chance of precipitation is 0% with a qpf of 0.00 in [0.00 mm].
Wednesday
Partly Cloudy Partly Cloudy with a high near 50°F [10°C]. northwest wind to around 14 mph [23 kph], with wind gusts to near 30 mph [49 kph]. The dewpoint will be near 23°F [-5°C] with a humidity of 63% and a barometric pressure around and a barometric pressure around 30.49 in [1033 mb]. The UVI forecast is null. Chance of precipitation is 0% with a qpf of 0.00 in [0.00 mm].
Wednesday Night
Partly Cloudy Partly Cloudy with a low around 36°F [2°C]. northwest wind to around 14 mph [22 kph], with wind gusts to near 21 mph [34 kph]. The dewpoint will be near 22°F [-4°C] with a humidity of 42% and a barometric pressure around and a barometric pressure around 30.42 in [1030 mb]. Chance of precipitation is 0% with a qpf of 0.00 in [0.00 mm].
Thursday
Isolated Showers Mostly Cloudy with Isolated Showers with a high near 54°F [12°C]. Southwest wind to around 12 mph [19 kph], with wind gusts to near 25 mph [40 kph]. The dewpoint will be near 26°F [0°C] with a humidity of 66% and a barometric pressure around and a barometric pressure around 30.25 in [1024 mb]. The UVI forecast is null. Chance of precipitation is 6% with a qpf of 0.14 in [3.5 mm].


QPF - Max Wind Speed - Max Humidity - Snowfall - Ice Accumulation
  7 Day and Night - QPF Forecast for Grantham, PA
Tonight: 3.2 mm | 0.13 in
Friday: 2.7 mm | 0.11 in
Friday Night: 3.9 mm | 0.16 in
Saturday: 7.1 mm | 0.28 in
Saturday Night: 1.3 mm | 0.05 in
Sunday: 0.00 mm | 0.00 in
Sunday Night: 0.00 mm | 0.00 in
Monday: 0.00 mm | 0.00 in
Monday Night: 0.00 mm | 0.00 in
Tuesday: 0.00 mm | 0.00 in
Tuesday Night: 0.00 mm | 0.00 in
Wednesday: 0.00 mm | 0.00 in
Wednesday Night: 0.00 mm | 0.00 in
Thursday: 3.5 mm | 0.14 in

  7 Day and Night - Maximum Wind Speed Forecast for Grantham, PA
Tonight: WSW @ 29 kph | 18 mph
Friday: N @ 18 kph | 11 mph
Friday Night: NNE @ 32 kph | 20 mph
Saturday: ESE @ 41 kph | 26 mph
Saturday Night: SE @ 34 kph | 21 mph
Sunday: WSW @ 47 kph | 29 mph
Sunday Night: W @ 25 kph | 15 mph
Monday: NNW @ 18 kph | 11 mph
Monday Night: E @ 20 kph | 12 mph
Tuesday: E @ 42 kph | 26 mph
Tuesday Night: W @ 42 kph | 26 mph
Wednesday: NW @ 49 kph | 30 mph
Wednesday Night: NW @ 34 kph | 21 mph
Thursday: SW @ 40 kph | 25 mph

  7 Day and Night - Maximum Humidity Forecast for Grantham, PA
Tonight: 86 %
Friday: 79 %
Friday Night: 86 %
Saturday: 97 %
Saturday Night: 88 %
Sunday: 72 %
Sunday Night: 70 %
Monday: 74 %
Monday Night: 75 %
Tuesday: 78 %
Tuesday Night: 63 %
Wednesday: 63 %
Wednesday Night: 65 %
Thursday: 66 %

  7 Day and Night - Snowfall Totals Forecast for Grantham, PA
Tonight: 0.00 cm | 0.00 in
Friday: 0.00 cm | 0.00 in
Friday Night: 0.00 cm | 0.00 in
Saturday: 0.00 cm | 0.00 in
Saturday Night: 0.00 cm | 0.00 in
Sunday: 0.00 cm | 0.00 in
Sunday Night: 0.00 cm | 0.00 in
Monday: 0.00 cm | 0.00 in
Monday Night: 0.00 cm | 0.00 in
Tuesday: 0.00 cm | 0.00 in
Tuesday Night: 0.00 cm | 0.00 in
Wednesday: 0.00 cm | 0.00 in
Wednesday Night: 0.00 cm | 0.00 in
Thursday: 0.00 cm | 0.00 in

  7 Day and Night - Ice Accumulation Forecast for Grantham, PA
Tonight: 0.00 mm | 0.00 in
Friday: 0.00 mm | 0.00 in
Friday Night: 0.00 mm | 0.00 in
Saturday: 0.00 mm | 0.00 in
Saturday Night: 0.00 mm | 0.00 in
Sunday: 0.00 mm | 0.00 in
Sunday Night: 0.00 mm | 0.00 in
Monday: 0.00 mm | 0.00 in
Monday Night: 0.00 mm | 0.00 in
Tuesday: 0.00 mm | 0.00 in
Tuesday Night: 0.00 mm | 0.00 in
Wednesday: 0.00 mm | 0.00 in
Wednesday Night: 0.00 mm | 0.00 in
Thursday: 0.00 mm | 0.00 in
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