National Weather Service State College, PA Weather Impact Matrix for Sullivan County Decision Support Valid: 07/18/2026 11 AM - 07/18/2026 10 PM EDT

Sat 07/18 11 AM Sat 07/18 12 PM Sat 07/18 1 PM Sat 07/18 2 PM Sat 07/18 3 PM Sat 07/18 4 PM Sat 07/18 5 PM Sat 07/18 6 PM Sat 07/18 7 PM Sat 07/18 8 PM Sat 07/18 9 PM Sat 07/18 10 PM Temperature 72°F 73°F 74°F 75°F 76°F 77°F 77°F 77°F 76°F 74°F 71°F 70°F Heat Index 72°F 73°F 74°F 75°F 76°F 77°F 78°F 77°F 76°F 74°F 71°F 70°F Wind Speed 8 mph 9 mph 9 mph 9 mph 9 mph 9 mph 9 mph 9 mph 9 mph 9 mph 9 mph 8 mph Wind Direction SW SW SW SW SW SW SW W SW W W SW Wind Gust 20 mph 21 mph 23 mph 23 mph 23 mph 23 mph 21 mph 23 mph 23 mph 21 mph 20 mph 19 mph Chance of Precipitation 98% 76% 64% 54% 55% 62% 50% 60% 71% 64% 66% 44% Weather Rain Thunder Rain Thunder Rain Thunder Rain Thunder Rain Thunder Rain Thunder Rain Thunder Rain Thunder Rain Thunder Rain Thunder Rain Thunder Rain Thunder Sky Cover 100% 100% 76% 74% 76% 76% 86% 85% 91% 84% 83% 90% Relative Humidity 87% 90% 97% 97% 96% 96% 94% 92% 92% 90% 99% 100% Rainfall 0.06 in 0.06 in 0.06 in 0.04 in 0.04 in 0.04 in 0.04 in 0.04 in 0.04 in 0.01 in 0.01 in 0.01 in Issued: Saturday July 18, 2026 11:15 AM 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