National Weather Service State College, PA Weather Impact Matrix for Lancaster County Decision Support Valid: 07/23/2026 08 AM - 07/23/2026 08 PM EDT

Thu 07/23 8 AM Thu 07/23 9 AM Thu 07/23 10 AM Thu 07/23 11 AM Thu 07/23 12 PM Thu 07/23 1 PM Thu 07/23 2 PM Thu 07/23 3 PM Thu 07/23 4 PM Thu 07/23 5 PM Thu 07/23 6 PM Thu 07/23 7 PM Thu 07/23 8 PM Temperature 63°F 66°F 70°F 72°F 74°F 75°F 78°F 78°F 79°F 80°F 78°F 78°F 75°F Heat Index 63°F 66°F 70°F 72°F 74°F 75°F 78°F 78°F 79°F 80°F 78°F 78°F 75°F Wind Speed 3 mph 4 mph 4 mph 5 mph 5 mph 4 mph 4 mph 4 mph 3 mph 3 mph 3 mph 2 mph 1 mph Wind Direction N N N N N N N N N N N N N Wind Gust 6 mph 9 mph 10 mph 10 mph 10 mph 9 mph 9 mph 9 mph 9 mph 8 mph 5 mph 4 mph 3 mph Chance of Precipitation 0% 0% 0% 0% 0% 0% 0% 0% 0% 0% 0% 0% 0% Weather None None None None None None None None None None None None None Sky Cover 0% 3% 1% 4% 2% 3% 2% 3% 3% 2% 2% 6% 5% Relative Humidity 78% 70% 59% 55% 51% 50% 45% 43% 42% 41% 43% 45% 52% 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 0.0 in 0.0 in Issued: Wednesday July 22, 2026 08:00 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