National Weather Service State College, PA Weather Impact Matrix for York County Decision Support Valid: 08/02/2025 04 PM - 08/03/2025 02 AM EDT

Sat 08/02 4 PM Sat 08/02 5 PM Sat 08/02 6 PM Sat 08/02 7 PM Sat 08/02 8 PM Sat 08/02 9 PM Sat 08/02 10 PM Sat 08/02 11 PM Sun 08/03 12 AM Sun 08/03 1 AM Sun 08/03 2 AM Temperature 79°F 78°F 77°F 76°F 73°F 70°F 68°F 66°F 65°F 63°F 61°F Heat Index 79°F 78°F 77°F 76°F 73°F 70°F 68°F 66°F 65°F 63°F 61°F Wind Speed 4 mph 4 mph 3 mph 2 mph 2 mph 1 mph 1 mph 1 mph 0 mph 0 mph 0 mph Wind Direction NE NE NE NE NE E SE E N N N Wind Gust 9 mph 8 mph 6 mph 6 mph 5 mph 4 mph 3 mph 2 mph 2 mph 2 mph 2 mph Chance of Precipitation 0% 0% 0% 0% 0% 0% 0% 0% 0% 0% 0% Weather None None None None None None None None None None None Sky Cover 58% 50% 48% 40% 38% 33% 38% 36% 23% 16% 15% Relative Humidity 46% 48% 50% 52% 57% 66% 69% 73% 75% 78% 83% Rainfall 0.0 in 0.0 in 0.0 in 0.0 in 0.0 in 0.0 in 0.0 in 0.0 in 0.0 in 0.0 in 0.0 in Issued: Saturday August 02, 2025 04:49 PM EDT

Threat Level	None	Limited	Elevated	Significant	Extreme
Temperature	≤80 °F	80 to 89 °F	90 to 94 °F	95 to 99 °F	≥100 °F
Heat Index	≤80 °F	80 to 89 °F	90 to 94 °F	95 to 99 °F	≥100 °F
Wind Speed	≤10 mph	10 to 14 mph	15 to 24 mph	25 to 34 mph	≥35 mph
Wind Gust	≤15 mph	15 to 24 mph	25 to 34 mph	35 to 44 mph	≥45 mph
Chance of Precipitation	≤15 %	15 to 24 %	25 to 54 %	55 to 74 %	≥75 %
Relative Humidity	≥15 %	15 to 21 %	20 to 31 %	30 to 41 %	≤40 %
Rainfall	≤0.1 in	0.1 to 0.24 in	0.25 to 0.49 in	0.5 to 0.99 in	≥1.0 in

Note -

Grey color indicates no thresholds assigned